2024

• Record 241 of
  
  Title:Swin-CDSA: The Semantic Segmentation of Remote Sensing Images Based on Cascaded Depthwise Convolution and Spatial Attention Mechanism
  
  Author(s):Kang, Yuhan(1); Ji, Jian(1); Xu, Hekai(1); Yang, Yong(1); Chen, Peng(1); Zhao, Hui(2)
  Source:IEEE Geoscience and Remote Sensing Letters
  Volume: 21  Issue:   DOI: 10.1109/LGRS.2024.3431638  Published: 2024  
  Abstract:As an important task in remote sensing image processing, semantic segmentation of remote sensing images has broad application prospects in many fields such as disaster warning and rescue, environmental protection, and road planning. Research on semantic segmentation of remote sensing images based on deep learning has made some progress, but there are still problems such as poor perception of small object features, loss of detailed information in deep feature extraction, and imprecise segmentation contours of small objects. To this end, we propose a new remote sensing semantic segmentation model Swin-CDSA, which copes these problems to some extent by designing cascaded deep convolutional modules (CDCMs) and spatial attention mechanisms (SAMs). CDCM extracts multiscale features by using multilayer convolutions with different layers but parallel fixed small-sized kernels, while SAM supplements the model's understanding of local and global information through a dual attention mechanism. We conducted experiments on the Potsdam and LoveDA datasets and achieved good results. © 2024 IEEE.
  Accession Number: 20243116773801
• Record 242 of
  
  Title:A truncated test scheme design method for success-failure in-orbit tests
  
  Author(s):Ding, Wenzhe(1,2); Bai, Xiang(1); Wang, Qingwei(1); Long, Fang(1); Li, Hailin(1); Wu, Zhengrong(1); Liu, Jian(1); Yao, Huisheng(1); Yang, Hong(1)
  Source:Reliability Engineering and System Safety
  Volume: 243  Issue:   DOI: 10.1016/j.ress.2023.109782  Published: March 2024  
  Abstract:Based on the success-failure test feature of in-orbit tests (IOTs) for typical space equipment, this paper presents a method for designing a truncated test scheme for success-failure in-orbit tests. With this method, a small upper boundary of the sample size for the IOT verification test can be obtained before the test starts. The method introduces the truncated Bayes-sequential mesh test (SMT) method into the design of the IOT verification test scheme and greatly compresses the continuous test area by incorporating optimization theory, resulting in a smaller upper limit of the IOT sample size. First, this paper derives a specific calculation formula for the Bayes-SMT critical line. Second, the Markov chain model is adopted to calculate the occurrence probabilities of each acceptance and rejection point through state transition. Finally, an optimal truncated test optimization algorithm based on the augmented lagrangian genetic algorithm is proposed. Simulation tests show that, compared with the classical single sampling method, the truncated sequential probability ratio test method, the truncated SMT method, and the truncated Bayes-SMT method based on step-by-step calculation, the method presented in this paper can be used to obtain a sequential test scheme with smaller truncated sample size. © 2023
  Accession Number: 20234715092999
• Record 243 of
  
  Title:Output Facet Temperature of High-Power Semiconductor Lasers Using Optical-Thermal Reflection Method
  
  Author(s):Xu, Zibang(1,2,3); Miao, Xinlian(1,2,3); Liu, Yuxian(4); Lan, Yu(4); Zhao, Yuliang(4); Zhang, Xiang(1,2,3); Yang, Guowen(5); Yuan, Xiao(1,2,3)
  Source:Zhongguo Jiguang/Chinese Journal of Lasers
  Volume: 51  Issue: 13  DOI: 10.3788/CJL231574  Published: July 2024  
  Abstract:Objective Semiconductor lasers have been widely used in industrial, medical, and other fields owing to their high electro-optical conversion efficiency, wide spectrum, and high power-to-volume ratio characteristics. However, as the application field expanded, higher power and reliability requirements have been stated. When manufacturing a high-power semiconductor laser, catastrophic optical mirror damage (COMD) is a key factor limiting the output power and reliability characteristics. COMD occurs due to a local temperature rise at the facet, which exceeds the material damage threshold, and it denotes the irreversible physical damage inflicted on the facet. Note that the occurrence of COMD is closely related to the output facet temperature; thus, accurately measuring the temperature and plotting its distribution are crucial for assessing the failure characteristics of high-power semiconductor lasers. Methods This study is based on the optical thermal reflection method used to construct a semiconductor laser output surface temperature measurement system. Accordingly, the distribution characteristics of the output surface temperature are studied. First, the thermal reflection coefficient of the output facet material used in the semiconductor laser is measured, based on which the measurement system is calibrated. Second, the lock-in method is used to improve the signal-to-noise ratio of the measurement system by increasing the number of image acquisitions. Finally, the output facet temperatures are measured under different operating currents, and the temperature information along the fast and slow axes is extracted and analyzed. Results and Discussions The thermal reflection coefficient of the active region is 5.06 × 10-4 [Fig. 3(a)], and that of the substrate is 6.03 × 10-4 [Fig. 3(b)]. After 1000 iterations, the amplitude fluctuation of the thermal reflection signal tends to a smooth curve, causing a temperature fluctuation of less than 0.4 °C (Fig. 6). The output facet temperature under the 1-10 A current is measured; the output facet temperature of the active region of the semiconductor laser increases with an increase in the injection current (Fig. 8). The output facet temperature of the quantum well layer exhibits strong non-uniformity along the slow axis. At 10 A, the maximum temperature difference at the output facet is approximately 7.5 °C. However, at 1 A, the maximum difference exceeds 3 °C (Fig. 9). The output facet temperatures of the quantum well region under currents of 2, 4, 6, 8, and 10 A are 1.4, 3.1, 4.6, 6.9, and 8.7 °C higher than the junction temperature, respectively. In the region with an approximate thickness of 1.3 pun at both sides of the quantum well, the output facet temperature is higher than the junction temperature. However, in other regions, the output facet temperature is lower than the junction temperature (Fig. 11). Conclusions This article presents a study on the high-resolution measurement of the temperature distribution at the semiconductor laser output facet using the optical thermal reflection method. The temperature distribution information from the output facet of the semiconductor laser is collected under working currents of 1-10 A. The results indicate that the measurement method presented in this study can distinguish small temperature variations at the output facet of the semiconductor laser. Moreover, it is observed that the temperature distribution at the output facet of the semiconductor laser exhibits strong non-uniformity along the slow axis, primarily due to heat generation from light absorption and non-radiative recombination occurring at the facet defects. The highest temperature is observed near the quantum well layer at the output facet, which is consistent with the fact that COMD usually occurs in this region, indicating that abnormal temperatures exceeding the damage threshold are the direct cause of COMD failure in semiconductor lasers. The research method and results presented in this study contribute to obtaining a better understanding of the heat generation mechanism at the output facet of semiconductor lasers, which hold significant practical value for optimizing their design for improving their output performance and reliability. © 2024 Science Press. All rights reserved.
  Accession Number: 20243216840207
• Record 244 of
  
  Title:Blind deep-learning based preprocessing method for Fourier ptychographic microscopy
  
  Author(s):Wu, Kai(1,2); Pan, An(1); Sun, Zhonghan(1); Shi, Yinxia(1,2); Gao, Wei(1)
  Source:Optics and Laser Technology
  Volume: 169  Issue:   DOI: 10.1016/j.optlastec.2023.110140  Published: February 2024  
  Abstract:Fourier ptychographic microscopy (FPM) is a technique for tackling the trade-off between the resolution and the imaging field of view by combining the techniques from aperture synthesis and phase retrieval to estimate the complex object from a series of low-resolution intensity images captured under angle-varied illumination. The captured images are commonly corrupted by multiple noise, leading to the degradation of the reconstructed image quality. Typically speaking, the noise model and noise level of the experimental images are unknown, and the traditional image denoising methods have limited effect. In this paper we model the FPM forward imaging process corrupted by noise and divide the noise in the captured images into two parts: the signal-dependent part and the signal-independent part. Based on the noise model we propose a novel blind deep-learning based Fourier ptychographic microscopy preprocessing method, termed BDFP, for removing these two components of noise. First, from a portion of the captured low-resolution images, a set of blocks corresponding to the smooth area of the object are extracted to model signal-independent noise. Second, under the assumption that the signal-dependent noise follows a Poisson distribution, we add Poisson noise and signal-independent noise blocks to clean images to form a paired training dataset, which is then used for training a deep convolutional neural network (CNN) model to reduce both signal-dependent noise and signal-independent noise. The proposed blind preprocessing method, combining with typical FPM reconstruction algorithms, is tested on simulated data and experimental images. Experimental results show that our preprocessing method can significantly reduce the noise in the captured images and bring about effective improvements in reconstructed image quality. © 2023 Elsevier Ltd
  Accession Number: 20234014830596
• Record 245 of
  
  Title:A design of compact plasmonic lens consisting of high index dielectric gratings and metal nano-film
  
  Author(s):Jia, Sen(1); Wang, Xianhua(1); Zhou, Libing(2)
  Source:Optics Communications
  Volume: 570  Issue:   DOI: 10.1016/j.optcom.2024.130928  Published: November 1, 2024  
  Abstract:In this paper, a hybrid ultra-thin planar subwavelength focusing structure consisting of a high refractive index dielectric grating and a nano metal film was designed. The thickness of this structure is only 200 nm. Surface plasmon polaritons (SPPs) were excited from the nano metal film, propagated along the metal-air interface, and were then converted into a radiation field by the dielectric grating, forming a focused spot in free space. By adjusting the grating position and width parameters, the shape of the focused optical field could be controlled. The simulation results showed that, under 532 nm light irradiation, the lens could produce a 270 nm (full width at half-maximum, FWHM) spot size at a focal length of 2.46λ. Moreover, under the illumination of 633 nm and 780 nm light, the designed lenses were found to produce focal spot sizes of 304 nm (0.48λ) and 364 nm (0.47λ), respectively, which were smaller than the diffraction limit. The simplicity of this plasmonic lens design, coupled with its reduced thickness and minimal absorption loss, offered significant advantages in terms of cost-effectiveness and ease of fabrication. © 2024 Elsevier B.V.
  Accession Number: 20243216819587
• Record 246 of
  
  Title:Station Planning Method for Multi-sensor System Collaborative Measurement Field
  
  Author(s):Lin, Xuezhu(1,2); Wang, Dexuan(1); Fu, Xihong(3,4); Yang, Fan(3); Guo, Lili(1,2); Yan, Dongming(1); Li, Lijuan(1,2)
  Source:Guangzi Xuebao/Acta Photonica Sinica
  Volume: 53  Issue: 8  DOI: 10.3788/gzxb20245308.0812001  Published: August 2024  
  Abstract:With the continuous development and technological advances in the modern industrial field，large component measurement techniques are becoming increasingly important in various fields. Particularly in areas such as large machinery and equipment，aerospace，etc.，accurately measuring and evaluating the dimensions and shapes of parts，components，and systems is critical to ensuring product quality，meeting design requirements，and ensuring safety. Among them，station planning plays a key role in large component measurement tasks，and it directly affects the overall accuracy and efficiency of the entire measurement task. Currently，the station planning of large component measurement often relies on experienced surveyors，which leads to an increase in the time and labor cost of the measurement and the instability of the measurement results. Secondly，the traditional method of station planning for large component measurement is often time-consuming and inefficient，lacks theoretical basis and evaluation methods，and is prone to problems such as large number of stations，high number of station transfers and low measurement efficiency，which can not meet the needs of modern manufacturing industry for fast and efficient measurement. In view of the above-mentioned large-scale component multi-sensing system station planning，due to the diversification of system measurement accessibility models and the imbalance of multi-system measurement accuracy，the combined measurement station setting relies heavily on the experience of surveyors and continuous attempts to obtain suitable stations. To solve the problem，this paper proposes a combined measurement station planning method for multi-sensor systems. Firstly，considering the tooling occlusion issue，based on the combined measurement accessibility model in the collaborative measurement field，we establish an initial value solving model for tooling-affected station positions using the Remora optimization algorithm. This model calculates the initial values of measurement stations in the combined measurement system；secondly，addressing the precision constraint issue，we establish a collaborative measurement accuracy model. We formulate an optimization objective function that minimizes the weighted residual values of the observation data and the vector angular measurement errors. We optimize the scaling factor to achieve the best accuracy in station coordinates；finally，a certain target simulator satisfies the position，posture initial assembly and adjustment accuracy requirements are taken as an example. A combined measurement station planning experiment was conducted. The root mean square error of the measurement data after optimization is 0.032 mm. Compared with the measurement planning before optimization，the position measurement accuracy increased by 34%，and the angle measurement accuracy increased by 9.5 % . This method provides improvements in methods for the rapid and precise detection as well as station planning efficiency of components，parts，and systems in large-scale structures. It offers valuable references for further research and applications in the field of measurement. © 2024 Chinese Optical Society. All rights reserved.
  Accession Number: 20243917112601
• Record 247 of
  
  Title:Advances in data simulation for space-based situational awareness
  
  Author(s):Luo, Xiu-Juan(1,2); Hao, Wei(1,2)
  Source:Chinese Optics
  Volume: 17  Issue: 3  DOI: 10.37188/CO.2023-0156  Published: May 2024  
  Abstract:The data simulation for Space Situational Awareness (SSA) can provide critical data support for the development, testing, and validation of space surveillance equipment and situational awareness algorithms (including detection, tracking, recognition, and characterization of space object), playing a significant role in building SSA capabilities. Taking the optical data simulation for space-based situational awareness as the research subject, the purpose and main research content of SSA data simulation are presented,and the typical research methods and processes of SSA optical imaging simulation are set forth. The current research status and progress in domestic and foreign related research are introduced, covering the imaging modeling and simulation achievements of different optical sensing systems such as binocular vision sensors, LiDAR, infrared sensors, visible light telescopes, and star trackers. The development trend of SSA data simulation research is analyzed, providing reference for future research ideas and approaches of SSA data simulation. © 2024 Editorial Office of Chinese Optics. All rights reserved.
  Accession Number: 20242316214722
• Record 248 of
  
  Title:Generation of chiral optical vortex lattice for controlled aggregation of particles
  
  Author(s):Yang, X.B.(1); Zhang, H.(1); Tang, M.M.(1); Ma, H.X.(2); Tai, Y.P.(1,3,4); Li, X.Z.(1,3,4)
  Source:Applied Physics Letters
  Volume: 125  Issue: 1  DOI: 10.1063/5.0214498  Published: July 1, 2024  
  Abstract:The chiral light field has attracted great attention owing to its interaction with chiral matter. The generation of chiral light fields with rich structures has become crucial as it can expand application scenarios. Herein, we introduce a chiral optical vortex lattice. As a whole, the optical vortex lattice has a chiral intensity distribution, with each spiral arm having sub-vortices (chiral phase). By using an expansion factor to adjust the involute of a circular lattice, this helical optical vortex lattice can be continuously varied from a circular lattice. The chirality of intensity and phase can be controlled independently. Furthermore, the optical tweezers using the lattice demonstrate the capability of sub-vortices to manipulate particle movement, with the chiral intensity determining the trajectory of particle motion. As the lattice possesses both intensity and phase chirality, it may also find potential applications in tasks such as chiral structure microfabrication. © 2024 Author(s).
  Accession Number: 20242816677455
• Record 249 of
  
  Title:1.9 μm ultra-narrow spectral width mode-locked pulsed laser based on femtosecond laser inscribed FBG
  
  Author(s):Guo, Xiaoxiao(1); Huang, Xiwei(1); Li, Xiaohui(1); Luo, Pengtao(2); Gao, Cunxiao(3); Wang, Ruohui(2); Wang, Yishan(3); Xi, Fei(4); Yin, Xiaoqiang(5); Zhang, Kai(6)
  Source:Optics and Lasers in Engineering
  Volume: 181  Issue:   DOI: 10.1016/j.optlaseng.2024.108441  Published: October 2024  
  Abstract:The ultra-narrow spectral width laser with excellent temporal coherence is an important light source for microphysics, space detection, and high-precision measurements. However, less attention seems to be paid to mode-locked pulsed lasers in the ∼ 1.9 μm. Due to the narrow bandwidth of femtosecond laser inscribed fiber Bragg gratings (FBG), the thulium-doped fiber laser (TDFL) can generate ultra-narrow spectral width pulse. The central wavelength and 3-dB bandwidth of the output soliton is 1877.938 nm and 0.044 nm. The linewidth of the output pulse reaches 3.7 GHz. To the best of our knowledge, this is the narrowest spectral width in 1.9 μm. Additionally, when the FBG is compressed or stretched, the central wavelength of pulses will be tuned. This work extends the application scope of FBG and provides a new and simple method for realizing an all-fiber mode-locked laser with ultra-narrow spectra width at 1.9 μm. © 2024
  Accession Number: 20243016751488
• Record 250 of
  
  Title:Design and Preparation of Anti-reflection Laser Films on Chalcogenide Glass Substrate
  
  Author(s):Wang, Tong(1); Xu, Junqi(1); Li, Yang(1); Su, Junhong(1); Sun, Shaobin(1); Liu, Zheng(2)
  Source:Surface Technology
  Volume: 53  Issue: 12  DOI: 10.16490/j.cnki.issn.1001-3660.2024.12.021  Published: June 2024  
  Abstract:With the development of infrared technology, chalcogenide glass has been used as an infrared optical element to a certain extent, but the transmittance of chalcogenide glass in the 3-5 μm band can not meet the requirements of use, and the infrared thin film for detectors is easily damaged by strong laser irradiation. In order to solve the problems that the optical film plated on chalcogenide glass (As40Se60) substrate is easy to fall off, the transmittance is low, and the laser resistance is poor, the work aims to design and prepare a thin film with good transmittance in the 3-5 μm band and laser resistance at 1 064 nm. The optical constants of ZnSe, ZnS and YbF3 monolayer films were deposited and measured by ion beam-assisted thermal evaporation technology, and the ZnSe film materials were used as the transition layer between the film-groups to improve the film adhesion, and the film system design of infrared anti-reflection laser films was carried out by combining ZnS and YbF3 film materials. The optical constant measured by the above-mentioned single-layer film was input into the TFCalc film design software, and the infrared film with anti-reflection function in the 3-5 μm band and high reflection function at 1 064 nm was optimized on the As40Se60 glass substrate through TFCalc software. The film structure was S | 0.61H0.21L0.32M0.26L-0.2M0.32L0.28M0.17L0.35M0.28L0.13M0.61L|A, of which H represented ZnSe material, M represented ZnS material, L represented YbF3 material, S represented chalcogenide glass and A represented air, and the design wavelength of the film system was 4 000 nm. The thin film layer thickness was 2 055 nm and the theoretical design spectral performance of the film was as follows: the average transmittance of double-sided coating samples in the range of 3-5 μm was 95.67%, the peak transmittance was 99.11%, and the average transmittance of single-sided coating samples in the range of (1 064±40) nm was 7.62%. The preparation of thin films was carried out by ion beam-assisted thermal evaporation technology, and the process parameters were optimized from the large difference in thermal expansion coefficient between chalcogenized glass and film materials. The optimized process parameters were: baking temperature of 70 ℃, ion energy of 100 eV, ion beam of 20 mA. Under these parameters, the residual stress of the thin film sample was −30.0 MPa and Zygo laser interferometer was used to test the surface shape before and after coating. The adhesion performance of the prepared film met the requirements. The average transmittance of the film was 95.38% and the peak transmittance was 99.07% when the film was coated on both sides in the 3-5 μm band. The average transmittance was 4.46% when the film was coated on one side in the range of (1 064±40) nm, and the laser damage threshold at 1 064 nm was 7.6 J/cm2. When a film is prepared on the chalcogenide glass substrate, starting from the difference in the thermal expansion coefficient between the glass itself and the film material, the process parameters such as baking temperature and ion parameters can be reasonably optimized, which can reduce the residual stress of the film and improve the adhesion performance of the film on the chalcogenide glass substrate. © 2024 Chongqing Wujiu Periodicals Press. All rights reserved.
  Accession Number: 20243016746299
• Record 251 of
  
  Title:Design of Compact Large Field Off-axis Three-mirror Space Optical System Based on Freeform Surface
  
  Author(s):Lu, Zhixian(1,2); Li, Xuyang(1); Ren, Zhiguang(1,2); Xu, Tongyu(1,2); Bian, Liguo(1,2); Wei, Jinyang(1,2); Yao, Kaizhong(1,2)
  Source:Guangzi Xuebao/Acta Photonica Sinica
  Volume: 53  Issue: 9  DOI: 10.3788/gzxb20245309.0922002  Published: September 2024  
  Abstract:In the realm of modern space exploration and remote sensing technology，reflective optical systems play an indispensable role. These systems are distinguished by their absence of chromatic aberration， broad operational bandwidth， effective stray light suppression， and their capacity for lightweight and compact design compared to transmissive systems. These attributes confer significant advantages in the application of space cameras. Particularly under the demands for high resolution and wide field of view，reflective optical systems emerge as the preferred choice due to their unique benefits. In an effort to diminish the physical footprint of space optical systems and reduce the associated costs of launching remote sensing satellites，this paper delineates the formulation of the initial structure for such a system，grounded in the principles of primary aberration theory. This research presents the design of an innovative off-axis three-mirror optical system characterized by an"annular contour"，facilitated through a methodical，gradual optimization strategy concentrating on the field of view and surface morphology. The proposed system boasts a focal length of 2 000 mm，a field of view spanning 5°×5°，an F-number of 12.5，and an external envelope circle diameter measuring 750 mm. Integral to this design is the employment of XY polynomial freeform surfaces for the primary and tertiary mirrors，and Zernike polynomial freeform surfaces for the secondary mirror. These selections were motivated by their capacity to minimize aberrations and enhance the system's imaging performance. By applying the surface shape parameters of these freeform surfaces，we conducted simulations to generate two-dimensional sagittal height maps for each of the three mirrors，thus facilitating a rigorous analysis of the optical system's theoretical capabilities. The results from this design process indicate that the imaging quality of the system aligns closely with the diffraction limit. Specifically，the maximum Root Mean Square（RMS）spot diameter across all fields was recorded at 8.38 μm，thereby falling beneath the threshold of twice the pixel size of the targeted detector. This level of performance signifies not only the system's acute resolution capabilities but also its potential for high-fidelity image capture，crucial for remote sensing applications. Furthermore，the system demonstrates a significant degree of energy concentration，with a maximum relative distortion measure of 1.88%，and a maximum wavefront error marked at 0.053λ. Impressively，the wavefront error across all visual fields remains superior to λ/18，thereby underscoring the system's exceptional optical performance and its alignment with stringent imaging standards. The completion of a tolerance analysis further corroborates the robustness of the system's imaging quality，affirming its capacity to fulfill the requisite performance metrics under a variety of operational conditions. This level of reliability is pivotal，especially given the harsh environments and the demanding nature of space deployments. The development of this compact，cost-effective off-axis three-mirror optical system represents a significant leap forward in the field of space optics，particularly for applications in remote sensing. By harnessing advanced optical design principles and leveraging the unique advantages of freeform surfaces，this study not only achieves remarkable improvements in system compactness and performance but also lays a solid foundation for future innovations in satellite imaging technology. The methodologies and insights gleaned from this research may well inform the design and optimization of next-generation space optical systems，driving further advancements in earth observation，environmental monitoring，and beyond. © 2024 Chinese Optical Society. All rights reserved.
  Accession Number: 20244117178785
• Record 252 of
  
  Title:Three-dimensional crumpled d-Ti3C2Tx/PANI structure enabled by PANI interlayer spacing control for enhanced electrochemical performance
  
  Author(s):Zhao, Yuanbo(2); He, Weijun(2); Chen, Yanan(2); Liu, Yanan(2); Xing, Hongna(2); Zhu, Xiuhong(1,2); Feng, Juan(2); Liao, Chunyan(2); Zong, Yan(2); Li, Xinghua(2); Zheng, Xinliang(2)
  Source:Materials Today Communications
  Volume: 39  Issue:   DOI: 10.1016/j.mtcomm.2024.108689  Published: June 2024  
  Abstract:The self-stacking and collapsing of few-layered Ti3C2Tx(d-Ti3C2Tx) results in its poor rate capability and cycle performance during charge/discharge processes. Constructing a three-dementional (3D) structure, introducing interlayer spacers and using alkaline electrolytes are effective and powerful strategies to resolve the problems. Herein, a 3D crumpled d-Ti3C2Tx/PANI composite was successfully prepared by HCl/LiF in-situ etching Ti3AlC2 to obtain d-Ti3C2Tx and polymerizing PANI onto its surface with ice-bath stirring. Benefiting from the synergistic effect of kinetically favorable structure, component and alkaline electrolytes, The PM-1 (d-Ti3C2Tx/PANI-1) as an electrode remarkably improves the electrochemical performances compared with the original d-Ti3C2Tx in 2 M KOH electrolyte. It exhibits a specific capacitance of 230 mF cm−2（115 F g−1）at 2 mA cm−2, high rate capability of 81.2% at 20 mA cm−2 and outstanding stability of 96.7% retention after 5000 cycles at 10 mA cm−2. Furthermore, an assembled symmetric supercapacitor (SSC) also presents an excellent stability performance with 82.4% retention after 5000 cycles at 8 mA cm−2 and a promising energy storage performance. The related work provides a good reference for the MXene-based electrode materials in the conditions of alkaline electrolytes. © 2024 Elsevier Ltd
  Accession Number: 20241315799736