{"title":"具有超高直流电密度的原子晶体过渡金属二卤化物肖特基三电能纳米发电机","authors":"Jian Zhou , Jianing Zhang , Yuanpeng Deng , Jingran Guo, Han Zhao, Cong Li, Shixuan Dang, Hongxuan Yu, Dizhou Liu, Duola Wang, Chuanyun Song, Yingde Zhao, Zhengli Yan, Jiali Chen, Hui Li, Xiang Xu","doi":"10.1016/j.nanoen.2024.109936","DOIUrl":null,"url":null,"abstract":"<div><p>Direct-current triboelectric nanogenerators (DC-TENGs) have recently become more attractive to convert mechanical energy into electricity due to their high current density with no need for rectification. Interfacial charge transfer, induced by the sliding contact on semiconductor materials, is critical to generate DC output but usually limited by the interfacial properties. Here, we report Schottky DC-TENGs based on the atomic-crystal transition-metal dichalcogenides (TMDs) with single crystallinity, monolayer thickness and atomic flatness to enhance the interfacial charge transfer. A record-high current density of 10<sup>10</sup> A/m<sup>2</sup>, two orders of magnitude higher than the state-of-the-art performance, can be directly generated by sliding a conductive-atomic force microscope tip on an atomic-crystal molybdenum disulfide. Density functional theory calculation and finite element simulation reveal that this ultrahigh current density can be attributed to the enhanced interfacial property owing to the atomic flatness of TMDs and strong local electrical field of nanoscale tip. We further demonstrate their excellent scalability by a high-crystalline monolayer film with sliding electrode. This work may guide and accelerate the development and application of high-performance DC-TENGs.</p></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":16.8000,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Atomic-crystal transition metal dichalcogenides Schottky triboelectricity nanogenerator with ultrahigh direct-current density\",\"authors\":\"Jian Zhou , Jianing Zhang , Yuanpeng Deng , Jingran Guo, Han Zhao, Cong Li, Shixuan Dang, Hongxuan Yu, Dizhou Liu, Duola Wang, Chuanyun Song, Yingde Zhao, Zhengli Yan, Jiali Chen, Hui Li, Xiang Xu\",\"doi\":\"10.1016/j.nanoen.2024.109936\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Direct-current triboelectric nanogenerators (DC-TENGs) have recently become more attractive to convert mechanical energy into electricity due to their high current density with no need for rectification. Interfacial charge transfer, induced by the sliding contact on semiconductor materials, is critical to generate DC output but usually limited by the interfacial properties. Here, we report Schottky DC-TENGs based on the atomic-crystal transition-metal dichalcogenides (TMDs) with single crystallinity, monolayer thickness and atomic flatness to enhance the interfacial charge transfer. A record-high current density of 10<sup>10</sup> A/m<sup>2</sup>, two orders of magnitude higher than the state-of-the-art performance, can be directly generated by sliding a conductive-atomic force microscope tip on an atomic-crystal molybdenum disulfide. Density functional theory calculation and finite element simulation reveal that this ultrahigh current density can be attributed to the enhanced interfacial property owing to the atomic flatness of TMDs and strong local electrical field of nanoscale tip. We further demonstrate their excellent scalability by a high-crystalline monolayer film with sliding electrode. This work may guide and accelerate the development and application of high-performance DC-TENGs.</p></div>\",\"PeriodicalId\":394,\"journal\":{\"name\":\"Nano Energy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.8000,\"publicationDate\":\"2024-06-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nano Energy\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2211285524006852\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Energy","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2211285524006852","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Atomic-crystal transition metal dichalcogenides Schottky triboelectricity nanogenerator with ultrahigh direct-current density
Direct-current triboelectric nanogenerators (DC-TENGs) have recently become more attractive to convert mechanical energy into electricity due to their high current density with no need for rectification. Interfacial charge transfer, induced by the sliding contact on semiconductor materials, is critical to generate DC output but usually limited by the interfacial properties. Here, we report Schottky DC-TENGs based on the atomic-crystal transition-metal dichalcogenides (TMDs) with single crystallinity, monolayer thickness and atomic flatness to enhance the interfacial charge transfer. A record-high current density of 1010 A/m2, two orders of magnitude higher than the state-of-the-art performance, can be directly generated by sliding a conductive-atomic force microscope tip on an atomic-crystal molybdenum disulfide. Density functional theory calculation and finite element simulation reveal that this ultrahigh current density can be attributed to the enhanced interfacial property owing to the atomic flatness of TMDs and strong local electrical field of nanoscale tip. We further demonstrate their excellent scalability by a high-crystalline monolayer film with sliding electrode. This work may guide and accelerate the development and application of high-performance DC-TENGs.
期刊介绍:
Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem.
Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.