Nano-Micro Letters最新文献_第2页

Revealing the Role of Hydrogen in Highly Efficient Ag-Substituted CZTSSe Photovoltaic Devices: Photoelectric Properties Modulation and Defect Passivation

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2024-12-03 DOI: 10.1007/s40820-024-01574-3

Xiaoyue Zhao, Jingru Li, Chenyang Hu, Yafang Qi, Zhengji Zhou, Dongxing Kou, Wenhui Zhou, Shengjie Yuan, Sixin Wu

{"title":"Revealing the Role of Hydrogen in Highly Efficient Ag-Substituted CZTSSe Photovoltaic Devices: Photoelectric Properties Modulation and Defect Passivation","authors":"Xiaoyue Zhao, Jingru Li, Chenyang Hu, Yafang Qi, Zhengji Zhou, Dongxing Kou, Wenhui Zhou, Shengjie Yuan, Sixin Wu","doi":"10.1007/s40820-024-01574-3","DOIUrl":"10.1007/s40820-024-01574-3","url":null,"abstract":"<div><p>The presence of Sn<sub>Zn</sub>-related defects in Cu<sub>2</sub>ZnSn(S,Se)<sub>4</sub> (CZTSSe) absorber results in large irreversible energy loss and extra irreversible electron–hole non-radiative recombination, thus hindering the efficiency enhancement of CZTSSe devices. Although the incorporation of Ag in CZTSSe can effectively suppress the Sn<sub>Zn</sub>-related defects and significantly improve the resulting cell performance, an excellent efficiency has not been achieved to date primarily owing to the poor electrical-conductivity and the low carrier density of the CZTSSe film induced by Ag substitution. Herein, this study exquisitely devises an Ag/H co-doping strategy in CZTSSe absorber via Ag substitution programs followed by hydrogen-plasma treatment procedure to suppress Sn<sub>Zn</sub> defects for achieving efficient CZTSSe devices. In-depth investigation results demonstrate that the incorporation of H in Ag-based CZTSSe absorber is expected to improve the poor electrical-conductivity and the low carrier density caused by Ag substitution. Importantly, the C=O and O–H functional groups induced by hydrogen incorporation, serving as an electron donor, can interact with under-coordinated cations in CZTSSe material, effectively passivating the Sn<sub>Zn</sub>-related defects. Consequently, the incorporation of an appropriate amount of Ag/H in CZTSSe mitigates carrier non-radiative recombination, prolongs minority carrier lifetime, and thus yields a champion efficiency of 14.74%, showing its promising application in kesterite-based CZTSSe devices.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-024-01574-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbon Nanofiber/Polyaniline Composite Aerogel with Excellent Electromagnetic Interference Shielding, Low Thermal Conductivity, and Extremely Low Heat Release

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2024-12-02 DOI: 10.1007/s40820-024-01583-2

Mingyi Chen, Jian Zhu, Kai Zhang, Hongkang Zhou, Yufei Gao, Jie Fan, Rouxi Chen, Hsing-Lin Wang

{"title":"Carbon Nanofiber/Polyaniline Composite Aerogel with Excellent Electromagnetic Interference Shielding, Low Thermal Conductivity, and Extremely Low Heat Release","authors":"Mingyi Chen, Jian Zhu, Kai Zhang, Hongkang Zhou, Yufei Gao, Jie Fan, Rouxi Chen, Hsing-Lin Wang","doi":"10.1007/s40820-024-01583-2","DOIUrl":"10.1007/s40820-024-01583-2","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 <ul>\u0000 <li>\u0000 <p>Using electrospun high-strength carbon nanofibers as the aerogel scaffold, high loading of polyaniline in the aerogel was achieved through seed polymerization, forming the core–shell structure fibers and simultaneously connecting the fibers as a stable conductive network.</p>\u0000 </li>\u0000 <li>\u0000 <p>Combining carbon-based materials with conductive polymers like polyaniline significantly improves shielding performance, achieving electromagnetic interference shielding efficiency of up to 84.5 dB and SE d<sup>−1</sup> values greater than 791.2 dB cm<sup>3</sup> g⁻<sup>1</sup>. Flame retardancy reduces PHRR by 65.8%, and thermal insulation with low thermal conductivity of 0.104 W m⁻<sup>1</sup> K⁻<sup>1</sup>.</p>\u0000 </li>\u0000 </ul>\u0000 </div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-024-01583-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RGB Color-Discriminable Photonic Synapse for Neuromorphic Vision System 用于神经形态视觉系统的 RGB 色彩可分辨光子突触

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2024-11-29 DOI: 10.1007/s40820-024-01579-y

Bum Ho Jeong, Jaewon Lee, Miju Ku, Jongmin Lee, Dohyung Kim, Seokhyun Ham, Kyu-Tae Lee, Young-Beom Kim, Hui Joon Park

{"title":"RGB Color-Discriminable Photonic Synapse for Neuromorphic Vision System","authors":"Bum Ho Jeong, Jaewon Lee, Miju Ku, Jongmin Lee, Dohyung Kim, Seokhyun Ham, Kyu-Tae Lee, Young-Beom Kim, Hui Joon Park","doi":"10.1007/s40820-024-01579-y","DOIUrl":"10.1007/s40820-024-01579-y","url":null,"abstract":"<div><p>To emulate the functionality of the human retina and achieve a neuromorphic visual system, the development of a photonic synapse capable of multispectral color discrimination is of paramount importance. However, attaining robust color discrimination across a wide intensity range, even irrespective of medium limitations in the channel layer, poses a significant challenge. Here, we propose an approach that can bestow the color-discriminating synaptic functionality upon a three-terminal transistor flash memory even with enhanced discriminating capabilities. By incorporating the strong induced dipole moment effect at the excitation, modulated by the wavelength of the incident light, into the floating gate, we achieve outstanding RGB color-discriminating synaptic functionality within a remarkable intensity range spanning from 0.05 to 40 mW cm<sup>−2</sup>. This approach is not restricted to a specific medium in the channel layer, thereby enhancing its applicability. The effectiveness of this color-discriminating synaptic functionality is demonstrated through visual pre-processing of a photonic synapse array, involving the differentiation of RGB channels and the enhancement of image contrast with noise reduction. Consequently, a convolutional neural network can achieve an impressive inference accuracy of over 94% for Canadian-Institute-For-Advanced-Research-10 colorful image recognition task after the pre-processing. Our proposed approach offers a promising solution for achieving robust and versatile RGB color discrimination in photonic synapses, enabling significant advancements in artificial visual systems.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-024-01579-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrahigh Energy and Power Density in Ni–Zn Aqueous Battery via Superoxide-Activated Three-Electron Transfer 通过超氧化物激活三电子转移实现镍锌水电池的超高能量和功率密度

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2024-11-29 DOI: 10.1007/s40820-024-01586-z

Yixue Duan, Bolong Li, Kai Yang, Zheng Gong, Xuqiao Peng, Liang He, Derek Ho

引用次数: 0

Ligand Engineering Achieves Suppression of Temperature Quenching in Pure Green Perovskite Nanocrystals for Efficient and Thermostable Electroluminescence 配体工程抑制了纯绿色过氧化物纳米晶体的温度淬灭，实现了高效、恒温电致发光

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2024-11-28 DOI: 10.1007/s40820-024-01564-5

Kaiwang Chen, Qing Du, Qiufen Cao, Chao Du, Shangwei Feng, Yutong Pan, Yue Liang, Lei Wang, Jiangshan Chen, Dongge Ma

{"title":"Ligand Engineering Achieves Suppression of Temperature Quenching in Pure Green Perovskite Nanocrystals for Efficient and Thermostable Electroluminescence","authors":"Kaiwang Chen, Qing Du, Qiufen Cao, Chao Du, Shangwei Feng, Yutong Pan, Yue Liang, Lei Wang, Jiangshan Chen, Dongge Ma","doi":"10.1007/s40820-024-01564-5","DOIUrl":"10.1007/s40820-024-01564-5","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 \u0000<ul>\u0000 <li>\u0000 <p>The innovative synthesis of pure green FAPbBr<sub>3</sub> nanocrystals at room temperature was exploited by employing aromatic amine ligands to refine the perovskite nanocrystals with high quality and excellent optoelectronic properties.</p>\u0000 </li>\u0000 <li>\u0000 <p>The proposed ligand engineering strategy firstly realized the suppression of emission thermal quenching effect in the organic-inorganic hybrid FAPbBr<sub>3</sub> nanocrystals.</p>\u0000 </li>\u0000 <li>\u0000 <p>It was demonstrated that the FAPbBr<sub>3</sub> based light-emitting diodes achieved a room temperature external quantum efficiency (EQE) of 21.9% at the luminance of 1580 cd m<sup>-2</sup>, and only presented less than 10% loss in EQE at a higher temperature of 343 K.</p>\u0000 </li>\u0000 </ul>\u0000 </div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-024-01564-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in the Development of Gradient Scaffolds Made of Nano-Micromaterials for Musculoskeletal Tissue Regeneration 用于肌肉骨骼组织再生的纳米微材料梯度支架的开发进展

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2024-11-27 DOI: 10.1007/s40820-024-01581-4

Lei Fang, Xiaoqi Lin, Ruian Xu, Lu Liu, Yu Zhang, Feng Tian, Jiao Jiao Li, Jiajia Xue

引用次数: 0

A Multifunctional Hydrogel with Multimodal Self-Powered Sensing Capability and Stable Direct Current Output for Outdoor Plant Monitoring Systems 一种具有多模式自供电传感能力和稳定直流输出的多功能水凝胶，适用于室外植物监测系统

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2024-11-27 DOI: 10.1007/s40820-024-01587-y

Xinge Guo, Luwei Wang, Zhenyang Jin, Chengkuo Lee

引用次数: 0

Dual-Donor-Induced Crystallinity Modulation Enables 19.23% Efficiency Organic Solar Cells 双供体诱导结晶度调制可实现 19.23% 效率的有机太阳能电池

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2024-11-27 DOI: 10.1007/s40820-024-01576-1

Anhai Liang, Yuqing Sun, Sein Chung, Jiyeong Shin, Kangbo Sun, Chaofeng Zhu, Jingjing Zhao, Zhenmin Zhao, Yufei Zhong, Guangye Zhang, Kilwon Cho, Zhipeng Kan

引用次数: 0

Efficient and Stable Photoassisted Lithium-Ion Battery Enabled by Photocathode with Synergistically Boosted Carriers Dynamics 具有协同增效载流子动力学的光电阴极可驱动高效稳定的光助锂离子电池

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2024-11-27 DOI: 10.1007/s40820-024-01570-7

Zelin Ma, Shiyao Wang, Zhuangzhuang Ma, Juan Li, Luomeng Zhao, Zhihuan Li, Shiyuan Wang, Yazhou Shuang, Jiulong Wang, Fang Wang, Weiwei Xia, Jie Jian, Yibo He, Junjie Wang, Pengfei Guo, Hongqiang Wang

{"title":"Efficient and Stable Photoassisted Lithium-Ion Battery Enabled by Photocathode with Synergistically Boosted Carriers Dynamics","authors":"Zelin Ma, Shiyao Wang, Zhuangzhuang Ma, Juan Li, Luomeng Zhao, Zhihuan Li, Shiyuan Wang, Yazhou Shuang, Jiulong Wang, Fang Wang, Weiwei Xia, Jie Jian, Yibo He, Junjie Wang, Pengfei Guo, Hongqiang Wang","doi":"10.1007/s40820-024-01570-7","DOIUrl":"10.1007/s40820-024-01570-7","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 <ul>\u0000 <li>\u0000 <p>Developing a universal bulk heterojunction strategy to create oxygen vacancies by embedding laser-manufactured metal nanocrystals into the TiO<sub>2</sub> matrix.</p>\u0000 </li>\u0000 <li>\u0000 <p>Proposing a new mechanism based on plasmonic-induced hot electron injection and enhanced conductivity from Schottky contact-derived oxygen vacancies.</p>\u0000 </li>\u0000 <li>\u0000 <p>Establishing several benchmark values for the performance of TiO<sub>2</sub>-based photocathodes in photoassisted lithium-ion batteries.</p>\u0000 </li>\u0000 </ul>\u0000 </div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-024-01570-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Strategies and Advances in Hydrogel-Based Delivery Platforms for Bone Regeneration 基于水凝胶的骨再生传输平台的最新战略和进展

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2024-11-27 DOI: 10.1007/s40820-024-01557-4

Xiao Wang, Jia Zeng, Donglin Gan, Kun Ling, Mingfang He, Jianshu Li, Yongping Lu

引用次数: 0