{"title":"压力影响金纳米颗粒锚定CsPbBr3纳米晶体形成纳米异质结的界面效应","authors":"Shuhao Zhang, Xinyu Liu, Hongjian Qi, Hongyu Tu, Xin Wang, Kuo Bao, Fangfei Li, Shuping Xu, Tian Cui*, Hongyu Yu* and Lingyun Pan*, ","doi":"10.1021/acs.jpcc.4c0679910.1021/acs.jpcc.4c06799","DOIUrl":null,"url":null,"abstract":"<p >Plasmon enhanced perovskite photovoltaic materials are an important direction for the development of perovskite materials. Interfacial behavior of the plasmon and perovskite determines photovoltaic properties. On the other hand, pressure is a powerful noninvasive method to modify interfacial interaction. Thus, an Au-CsPbBr<sub>3</sub> nanoheterojunction is formed by depositing Au nanoparticles on the surface of CsPbBr<sub>3</sub> nanocrystals. Pressure affected optical properties indicated that both electron delocalization and hole migration can be modified in the nanoheterojunction. Electron delocalization is enhanced with decreasing pressure-induced interspace. Hole migration is also accelerated with increasing pressure-induced valence band in CsPbBr<sub>3</sub>. These results show a new method to adjust charge behavior in heterojunctions and thus a way to optimize photovoltaic properties.</p>","PeriodicalId":61,"journal":{"name":"The Journal of Physical Chemistry C","volume":"128 49","pages":"20992–21000 20992–21000"},"PeriodicalIF":3.2000,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Pressure Affected Interface Effect in Nanoheterojunctions Formed by Au Nanoparticles Anchoring CsPbBr3 Nanocrystals\",\"authors\":\"Shuhao Zhang, Xinyu Liu, Hongjian Qi, Hongyu Tu, Xin Wang, Kuo Bao, Fangfei Li, Shuping Xu, Tian Cui*, Hongyu Yu* and Lingyun Pan*, \",\"doi\":\"10.1021/acs.jpcc.4c0679910.1021/acs.jpcc.4c06799\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Plasmon enhanced perovskite photovoltaic materials are an important direction for the development of perovskite materials. Interfacial behavior of the plasmon and perovskite determines photovoltaic properties. On the other hand, pressure is a powerful noninvasive method to modify interfacial interaction. Thus, an Au-CsPbBr<sub>3</sub> nanoheterojunction is formed by depositing Au nanoparticles on the surface of CsPbBr<sub>3</sub> nanocrystals. Pressure affected optical properties indicated that both electron delocalization and hole migration can be modified in the nanoheterojunction. Electron delocalization is enhanced with decreasing pressure-induced interspace. Hole migration is also accelerated with increasing pressure-induced valence band in CsPbBr<sub>3</sub>. These results show a new method to adjust charge behavior in heterojunctions and thus a way to optimize photovoltaic properties.</p>\",\"PeriodicalId\":61,\"journal\":{\"name\":\"The Journal of Physical Chemistry C\",\"volume\":\"128 49\",\"pages\":\"20992–21000 20992–21000\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2024-12-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Journal of Physical Chemistry C\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acs.jpcc.4c06799\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of Physical Chemistry C","FirstCategoryId":"1","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acs.jpcc.4c06799","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Pressure Affected Interface Effect in Nanoheterojunctions Formed by Au Nanoparticles Anchoring CsPbBr3 Nanocrystals
Plasmon enhanced perovskite photovoltaic materials are an important direction for the development of perovskite materials. Interfacial behavior of the plasmon and perovskite determines photovoltaic properties. On the other hand, pressure is a powerful noninvasive method to modify interfacial interaction. Thus, an Au-CsPbBr3 nanoheterojunction is formed by depositing Au nanoparticles on the surface of CsPbBr3 nanocrystals. Pressure affected optical properties indicated that both electron delocalization and hole migration can be modified in the nanoheterojunction. Electron delocalization is enhanced with decreasing pressure-induced interspace. Hole migration is also accelerated with increasing pressure-induced valence band in CsPbBr3. These results show a new method to adjust charge behavior in heterojunctions and thus a way to optimize photovoltaic properties.
期刊介绍：
The Journal of Physical Chemistry A/B/C is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, and chemical physicists.
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