Climate Change Data Portal
DOI | 10.1016/j.scib.2020.01.025 |
Curing the fundamental issue of impurity phases in two-step solution-processed CsPbBr3 perovskite films | |
Feng J.; Han X.; Huang H.; Meng Q.; Zhu Z.; Yu T.; Li Z.; Zou Z. | |
发表日期 | 2020 |
ISSN | 20959273 |
起始页码 | 726 |
结束页码 | 737 |
卷号 | 65期号:9 |
英文摘要 | Inorganic lead halide perovskite CsPbBr3 offers attractive photophysical properties and phase stability for high-performance optoelectronic devices. However, CsPbBr3 films produced by the classic solution-based two-step method are always accompanied with impurity phases of CsPb2Br5 and Cs4PbBr6, which represents a major efficiency-limiting factor for future advances of CsPbBr3-based devices. The challenge lies in the complexity of the Cs-Pb-Br phase system, requiring both spatially and temporally precise control of the precursor stoichiometry during solution-phase growth of CsPbBr3 films. By adopting 2-methoxyethanol as the solution conversion medium instead of commonly applied methanol, the reaction between CsBr and PbBr2 can be finely controlled to yield single phase CsPbBr3 films within a few minutes; extending the solution-conversion step to 24 h does not alter the phase purity of resulting CsPbBr3 films. The present work paves the way to regulate the crystal growth behaviors of two-step solution-processed CsPbBr3 films by simple solvent engineering. © 2020 Science China Press |
关键词 | CsPbBr3 filmInorganic perovskitePhase puritySolvent engineeringTwo-step method |
英文关键词 | Bromine compounds; Cesium compounds; Crystal impurities; Optoelectronic devices; Perovskite; 2-Methoxyethanol; Crystal growth behavior; Halide perovskites; Phase purity; Photophysical properties; Solution-processed; Solvent engineering; Two step method; Lead compounds |
语种 | 英语 |
来源期刊 | Science Bulletin
![]() |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/207034 |
作者单位 | Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China; School of Physics, Nanjing University, Nanjing, 210093, China |
推荐引用方式 GB/T 7714 | Feng J.,Han X.,Huang H.,et al. Curing the fundamental issue of impurity phases in two-step solution-processed CsPbBr3 perovskite films[J],2020,65(9). |
APA | Feng J..,Han X..,Huang H..,Meng Q..,Zhu Z..,...&Zou Z..(2020).Curing the fundamental issue of impurity phases in two-step solution-processed CsPbBr3 perovskite films.Science Bulletin,65(9). |
MLA | Feng J.,et al."Curing the fundamental issue of impurity phases in two-step solution-processed CsPbBr3 perovskite films".Science Bulletin 65.9(2020). |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Feng J.]的文章 |
[Han X.]的文章 |
[Huang H.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Feng J.]的文章 |
[Han X.]的文章 |
[Huang H.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Feng J.]的文章 |
[Han X.]的文章 |
[Huang H.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。