Nano Energy最新文献_第2页

Wafer-scale flexible 2D PtSe2 layers with bi-directional wavelength tunability for fully optical synaptic operations

IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-03-31 DOI: 10.1016/j.nanoen.2025.110943

Sang Sub Han, Chung Won Lee, Changhyeon Yoo, Sang-Gil Lee, Tae-Sung Bae, Jung Han Kim, Hee-Suk Chung, Yeonwoong Jung

{"title":"Wafer-scale flexible 2D PtSe2 layers with bi-directional wavelength tunability for fully optical synaptic operations","authors":"Sang Sub Han, Chung Won Lee, Changhyeon Yoo, Sang-Gil Lee, Tae-Sung Bae, Jung Han Kim, Hee-Suk Chung, Yeonwoong Jung","doi":"10.1016/j.nanoen.2025.110943","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110943","url":null,"abstract":"Artificial synapses are promising building blocks for neuromorphic computing, offering a pathway to overcome the fundamental limitations of the von Neumann architecture. Especially, synaptic devices operated with optical stimuli are gaining interest due to their distinct advantages over electrically modulated conventional memristors. Here, we report fully optical synaptic demonstrations in two-dimensional (2D) platinum diselenide (PtSe<sub>2</sub>) layers, leveraging their bidirectional photo-responsiveness. Wafer-scale 2D PtSe<sub>2</sub> layers grown by chemical vapor deposition (CVD) exhibit distinct photoconductive responses: positive photoconductivity under long-wavelength optical illumination (625–940 nm) and negative photoconductivity under short-wavelength illumination (405 nm). This unique wavelength tunability leads to a comprehensive and essential set of optical synaptic characteristics in 2D PtSe<sub>2</sub> layers integrated on flexible substrates; <em>i.e.</em>, wavelength-dependent excitatory post-synaptic current (EPSC) and inhibitory post-synaptic current (IPSC), paired-pulse facilitation (PPF), as well as transitions between short-term/long-term potentiation (STP/LTP) and short-term/long-term depression (STD/LTD). Such synaptic features are well preserved even in the 2D PtSe<sub>2</sub> layers-based devices undergoing severe mechanical deformation, which facilitates demonstrations of basic logic functions and Pavlovian associative learning. Furthermore, wafer-scale 2D PtSe<sub>2</sub> arrays on diverse substrates are demonstrated to yield optical pattern recognition, retention, and potentiation capabilities accompanying minimal device-to-device variations. These findings highlight new opportunities for fully-optical and mechanically-reconfigurable neuromorphic hardware with extreme thinness.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"1 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Local Temperature Enhanced Tribovoltaic Effect

IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-03-31 DOI: 10.1016/j.nanoen.2025.110934

Yuhan Yang, Zhi Zhang, Jun Liu, Shiquan Lin, Zhong Lin Wang

{"title":"Local Temperature Enhanced Tribovoltaic Effect","authors":"Yuhan Yang, Zhi Zhang, Jun Liu, Shiquan Lin, Zhong Lin Wang","doi":"10.1016/j.nanoen.2025.110934","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110934","url":null,"abstract":"The tribovoltaic effect is a newly discovered physical phenomenon at the sliding interface of two semiconductor materials. However, its mechanism is still under investigation, and recent research on the effects of temperature provides a unique way to understand the tribovoltaic effect. Here, a pulsed infrared irradiation of atomic force microscopy-infrared spectroscopy (AFM-IR) is used to generate a local temperature increase from 0 to 140 °C to stimulate the “flash temperature” at sliding interfaces. The results show that when the temperature rise is about 140 °C, the tribovoltaic current can be increased for 25-fold. The local temperature rise has an enhancement on the tribovoltaic effect with a linear relationship between the instantaneous temperature rise and the tribo-current increment. Based the results, an energy band model is proposed, in which impurity states introduced by thermal decomposition of polystyrene sulfonate (PSS<sup>-</sup>) is considered to be one of the main reasons to promote the carrier transition. On the other hand, local temperature rise can bring stronger bonding interactions and produce more “bindington” to increase the generation efficiency of the electron-hole pairs. The findings have important guiding significance for improving the output, and developing applications of the tribovoltaic effect through friction interface design.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"183 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance enhancement from catalysts to membrane electrode assemblies for high-temperature proton exchange membrane fuel cells

IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-03-31 DOI: 10.1016/j.nanoen.2025.110931

Chenhui Xu, Shufan Wang, Yun Zheng, Haishan Liu, Lingfei Li, Zewen Zhuang, Wei Yan, Jiujun Zhang

{"title":"Performance enhancement from catalysts to membrane electrode assemblies for high-temperature proton exchange membrane fuel cells","authors":"Chenhui Xu, Shufan Wang, Yun Zheng, Haishan Liu, Lingfei Li, Zewen Zhuang, Wei Yan, Jiujun Zhang","doi":"10.1016/j.nanoen.2025.110931","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110931","url":null,"abstract":"High-temperature proton exchange membrane fuel cells (HT-PEMFCs) show broad application perspectives due to their faster reaction kinetics and tolerance to fuel/gas impurities as well as the easy water/heat managements. However, the catalysts and subsequent membrane electrode assemblies (MEAs) are still suffering from performance degradation, which severely restricts HT-PEMFCs’ large-scale practical application. To overcome the challenges, developing high-performance catalysts and MEAs with advanced materials and optimized structures to achieve stable and efficient operation of HT-PEMFCs is necessary. To facilitate the research and development of HT-PEMFCs, a comprehensive overview of the latest developments in the design of active and stable catalysts and durable MEAs is presented in this paper. This review systematically summarizes the degradation mechanisms of catalysts, and corresponding mitigation strategies for improving the stability of catalysts and MEAs, aiming to effectively developing high-performance and durable HT-PEMFCs. Furthermore, the main challenges are analysed and the future research directions for overcoming the challenges are also proposed for developing high-active and stable catalysts and MEAs used in HT-PEMFCs toward practical applications.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"18 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simplified surface defects of Sn-Pb perovskite for efficient all-perovskite tandem solar cells

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-03-29 DOI: 10.1016/j.nanoen.2025.110927

Yongxin Zhu , Ciyu Ge , Qi Xu , Dayu Liu , Peiyan Zhang , Xinzhi Zu , Chong Dong , Xuke Yang , Wenjiang Ye , Haojun Hu , Zhenkai Zhu , Zeyu Zhang , Juan Du , Shuping Pang , Long Hu , Haisheng Song , Ling Xu , Ying Zhou , Chao Chen , Jiang Tang

{"title":"Simplified surface defects of Sn-Pb perovskite for efficient all-perovskite tandem solar cells","authors":"Yongxin Zhu , Ciyu Ge , Qi Xu , Dayu Liu , Peiyan Zhang , Xinzhi Zu , Chong Dong , Xuke Yang , Wenjiang Ye , Haojun Hu , Zhenkai Zhu , Zeyu Zhang , Juan Du , Shuping Pang , Long Hu , Haisheng Song , Ling Xu , Ying Zhou , Chao Chen , Jiang Tang","doi":"10.1016/j.nanoen.2025.110927","DOIUrl":"10.1016/j.nanoen.2025.110927","url":null,"abstract":"<div><div>Alloyed Sn-Pb perovskites are demonstrating an increasingly important position due to ideal bandgaps for single and tandem applications. However, Sn incorporation would cause more complex defect management such as boosted deep defect density, serving as highly efficiently non-radiative recombination centers. Traditional one-step passivation methods cannot well passivate these complex defects, making it difficult to further improve open-circuit voltage and efficiency. To fundamentally solve this issue, here we develop a sequential passivation (se-passivation) approach to reconstruct defect types from complexity into simplicity, which then can be efficiently passivated by using well-developed comprehensive passivation strategies. Consequently, vacuum-assisted deposited Sn-Pb perovskite solar cells achieve a record open-circuit voltage of 0.91 V with a nonradiative loss as low as 60 mV. Combining with a 1.79- eV wide-bandgap front sub-cell, we delivered an astonishing efficiency of 28.16 % in all-perovskite tandem solar cells.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"139 ","pages":"Article 110927"},"PeriodicalIF":16.8,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From single- to multi-channel systems: Advancing handwriting forgery detection with triboelectric nanogenerator arrays

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-03-29 DOI: 10.1016/j.nanoen.2025.110925

Sicheng Chen , Yuanbin Tang , Mingxin Liu , Linfeng Deng , Lei Yang , Weiqiang Zhang

{"title":"From single- to multi-channel systems: Advancing handwriting forgery detection with triboelectric nanogenerator arrays","authors":"Sicheng Chen , Yuanbin Tang , Mingxin Liu , Linfeng Deng , Lei Yang , Weiqiang Zhang","doi":"10.1016/j.nanoen.2025.110925","DOIUrl":"10.1016/j.nanoen.2025.110925","url":null,"abstract":"<div><div>Handwriting recognition is a critical tool in identity verification and document authentication, yet existing technologies face limitations such as susceptibility to forgery and dependency on professional expertise. In this study, we propose a multi-channel handwriting recognition system (MCHRS) based on triboelectric nanogenerators (TENG-Sensors) to address these challenges. The system integrates a TENG-based handwriting tablet (TENG-HT) with deep learning and an OC-SVM classifier for accurate and efficient handwriting recognition. The TENG-Sensors generate distinct voltage signals during handwriting, capturing dynamic pressure information unique to each character. We systematically evaluated the detection accuracy of TENG-HTs with 1, 2, and 4 channels, demonstrating that the 4-channel configuration achieved the highest recognition accuracy. Using the MobileNet V2 model for feature extraction, the system accurately distinguished between handwriting by genuine writers and forgers. Additionally, the MCHRS was enhanced with wireless data transmission capabilities through integration with ADC, MCU, and WiFi modules, enabling real-time processing without external power supply. The results highlight the superior performance of the 4-channel MCHRS, achieving over 99 % recognition accuracy in distinguishing handwritten Chinese and numeric characters. This self-powered, wireless system demonstrates significant potential for practical applications in handwriting recognition, offering a robust, cost-effective, and forgery-resistant solution.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"139 ","pages":"Article 110925"},"PeriodicalIF":16.8,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MA-Free Lead–Tin Perovskites for All-Perovskite Tandem Solar Cells: Challenges, Strategies, and Perspectives

IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-03-29 DOI: 10.1016/j.nanoen.2025.110926

Siyi Wang, Wooyeon Kim, Lei Tao, Yuxin Wang, Min Jae Ko, Yuelong Li

{"title":"MA-Free Lead–Tin Perovskites for All-Perovskite Tandem Solar Cells: Challenges, Strategies, and Perspectives","authors":"Siyi Wang, Wooyeon Kim, Lei Tao, Yuxin Wang, Min Jae Ko, Yuelong Li","doi":"10.1016/j.nanoen.2025.110926","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110926","url":null,"abstract":"Lead–tin (Pb–Sn) perovskite solar cells (PSCs), known for their superior optoelectronic properties and suitability for tandem applications, have emerged as a compelling alternative to traditional photovoltaic systems. Among the various components, methylammonium (MA)-free Pb–Sn PSCs are reported to have enhanced thermal and environmental stability, which are necessary to meet commercial demands. Nonetheless, the performance and stability of MA-free Pb–Sn PSCs remain considerably poorer than those of their Pb-based counterparts due to the uneven crystallization of large-area perovskite films, the susceptibility of Sn components to oxidation, and the degradation caused by defects related to halide ions, resulting in poor-quality films with high defect densities. This review explores the challenges and underlying mechanisms associated with MA-free Pb–Sn PSCs, summarizes strategies to optimize their performance, and highlights their application prospects in tandem device configurations. Moreover, potential directions for improving film quality and device performance to meet the demands of large-scale production and commercial applications are identified. This review aims to guide the development of efficient and stable MA-free Pb–Sn PSCs and their tandem devices, ensuring that their potential for widespread commercialization is fulfilled.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"37 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-situ construction of solid polymer electrolyte with regulated Li-polymer interaction for high-performance solid-state Li metal batteries

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-03-29 DOI: 10.1016/j.nanoen.2025.110915

Tongbin Zhang , Yan Wang , Xiaoen Wang , Dan Luo , Shufeng Jia , Xuancheng Liu , Yongguang Zhang , Zhongwei Chen

{"title":"In-situ construction of solid polymer electrolyte with regulated Li-polymer interaction for high-performance solid-state Li metal batteries","authors":"Tongbin Zhang , Yan Wang , Xiaoen Wang , Dan Luo , Shufeng Jia , Xuancheng Liu , Yongguang Zhang , Zhongwei Chen","doi":"10.1016/j.nanoen.2025.110915","DOIUrl":"10.1016/j.nanoen.2025.110915","url":null,"abstract":"<div><div>The practical application of lithium metal batteries (LMB) is severely hindered owing to the fatal side reactions and dendritic growth of Li, while the development of solid-state LMB by using solid polymer electrolytes (SPE) can address these issues. Employing in-situ polymerization method is a feasible strategy for the large-scale production of SPE. However, its ionic conductivity and high voltage stability is still unsatisfactory. Herein, we developed a new SPE based on the in-situ polymerization of 2-vinyl-1,3-dioxolane (VDOL). The double bond addition reaction of VDOL induced by free radical polymerization endows the formation of enriched adjacent carbonyl functional group in polymer chain, which significantly enlarges its high-voltage tolerance and facilitates the formation of densified sites for favored Li<sup>+</sup> interaction and promoted ion conduction. In addition, the strengthened chemical interaction between Li<sup>+</sup> and C-O groups in SPE not only enhances the lithium salt dissociation, but also effectively regulates Li deposition and immobilizes anions. Attributed to its regulated Li-polymer interaction, the designed Ah-level pouch type LMB paired with sulfur cathode demonstrates a high energy density of 314.8 Wh kg<sup>−1</sup> and decent cyclic stability, which provides a new strategy of developing high performance SPE and related electrochemical devices.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"139 ","pages":"Article 110915"},"PeriodicalIF":16.8,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Perovskite-insulator-perovskite architecture for dynamic recognition of dual-dimensional optical information with the narrow range of mixed incident light

IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-03-29 DOI: 10.1016/j.nanoen.2025.110918

Lutong Guo, Rudai Zhao, Xuefan Yang, Lijun Cheng, Kun Zhang, Haodan Guo, Mingquan Tao, Xiwen Zhang, Yang Wang, Yanlin Song

{"title":"Perovskite-insulator-perovskite architecture for dynamic recognition of dual-dimensional optical information with the narrow range of mixed incident light","authors":"Lutong Guo, Rudai Zhao, Xuefan Yang, Lijun Cheng, Kun Zhang, Haodan Guo, Mingquan Tao, Xiwen Zhang, Yang Wang, Yanlin Song","doi":"10.1016/j.nanoen.2025.110918","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110918","url":null,"abstract":"Dynamic information recognition and encryption communication have been seriously affected under complex incident light environment conditions, especially the narrow range of mixed incident light. Single material device is not suitable for the intricate ambient light source, resulting in the incapable of accurate identification for the dual-dimensional optical signals. Herein, we design a perovskite-insulator-perovskite (PIP) sandwich structure photodetector through two-dimensional perovskite materials and machine learning to dynamically discriminate the narrow range of complex ambient light including the dual-dimensional optical signals, which enhances the device's light-sensing capabilities for photodetection information recognition and encryption communication. Meanwhile, the machine learning reinforces the complex dynamic recognition of PIP device under the dual-dimensional optical information. The PIP device demonstrates the notable performances along with average responsivity up to 0.13 A W<sup>-1</sup> and detectivity over 3.09 ×10<sup>11</sup> Jones. The machine learning-PIP device with the mass and dual-dimensional signal recognition also exhibits the encryption and dynamic decryption of light-based data. This machine learning-assisted PIP architecture device will apply into the reliably optical communication and environmentally adaptive devices landscape.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"1 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioinspired Programmable Cilia Array for Enhanced Tactile Perception

IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-03-28 DOI: 10.1016/j.nanoen.2025.110924

Mingyang Li, Zhuli Hou, Yakun Mou, Yanniu Xu, Xunxiao Wu, Yuhang Qiu, Yaping Zeng, Shuwen Luo, Shan Chen, Dengjun Lu

{"title":"Bioinspired Programmable Cilia Array for Enhanced Tactile Perception","authors":"Mingyang Li, Zhuli Hou, Yakun Mou, Yanniu Xu, Xunxiao Wu, Yuhang Qiu, Yaping Zeng, Shuwen Luo, Shan Chen, Dengjun Lu","doi":"10.1016/j.nanoen.2025.110924","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110924","url":null,"abstract":"Flexible pressure sensors, as key components for enhancing the dimensionality of machine learning perception, demonstrate significant application potential in the Internet of Everything framework, enabling intelligent connectivity through Human-Machine Interfaces. However, the balance between sensitivity and load range remains a critical challenge that limits sensor performance. In this study, inspired by the step-by-step contact sensing principle of cochlear cilia, a programmable multi-scale ciliary structure triboelectric material is developed using a flow casting method. The flexible pressure sensor constructed using this triboelectric structural material achieves both a wide sensing range of 100 kPa and a high sensitivity of 12.692 kPa<sup>-1</sup>. Compared to single-scale microstructure sensors, the sensing range is increased by 67.1%, while the sensitivity is enhanced by 182.7%. Furthermore, the sensor maintains high stability after more than 25,000 testing cycles. Based on this, an intelligent sensing ring was developed, which enables real-time gesture recognition and grip force sensing through the perception of finger motion states, achieving sensing accuracies of up to 98.6% and 97.6%, respectively. This research addresses the challenge of achieving compatibility between a wide stress range and high sensitivity in sensors, providing a promising manufacturing strategy for high-performance sensors based on Internet of Everything systems.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"101 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrafast self-powered strain sensor utilizing a flexible solar cell

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-03-27 DOI: 10.1016/j.nanoen.2025.110920

Yuzhao Qiang , Ziye Chen , Lu Yang , Qingdan Huang , Daoyi Li , Wenchao Huang , Xiaogang Guo , Chao Zhang

{"title":"Ultrafast self-powered strain sensor utilizing a flexible solar cell","authors":"Yuzhao Qiang , Ziye Chen , Lu Yang , Qingdan Huang , Daoyi Li , Wenchao Huang , Xiaogang Guo , Chao Zhang","doi":"10.1016/j.nanoen.2025.110920","DOIUrl":"10.1016/j.nanoen.2025.110920","url":null,"abstract":"<div><div>In the era of the rapidly growing Internet of Things (IoT), self-powered strain sensors play a vital role in ensuring the structural health of equipment and enabling intelligent monitoring systems. While integrating photovoltaic cells with sensing arrays to create self-sustaining sensing systems that operate continuously without external charging is promising, the design involving distinct sensors and energy-generating devices connected via conditioning circuits can pose integration challenges. Therefore, our novel approach of using copper indium gallium selenide (CIGS) solar cells directly as self-powered strain sensors excels in reducing system complexity. Density functional theory (DFT) calculations used to evaluate the effects of strain on the bandgap of the material showed downward trends under tensile and compressive loads. COMSOL Multiphysics simulations using the DFT results confirmed a direct correlation between strain and the device output voltage changes, establishing the working principle of the strain sensor. The CIGS sensor exhibits high linearity, low hysteresis, and an ultrafast response (0.03 ms) under impact tests. Environmental impact assessments lead to corrective measures to enhance the performance reliability. A distributed CIGS strain sensor network was able to successfully monitor wing deformation and can measure vibrations up to 20,000 Hz, marking significant progress toward practical applications in self-powered structural health monitoring.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"139 ","pages":"Article 110920"},"PeriodicalIF":16.8,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0