@article{Chen2016, 
author = {Xu Chen and Lucheng Peng and Keke Huang and Zhan Shi and Renguo Xie and Wensheng Yang},
title = {Non-injection gram-scale synthesis of cesium lead halide perovskite quantum dots with controllable size and composition},
year = {2016},
journal = {Nano Research},
volume = {9},
number = {7},
pages = {1994-2006},
keywords = {metal-halide perovskites, gram-scale synthesis, controllable size and composition, optoelectronic materials},
url = {https://www.sciopen.com/article/10.1007/s12274-016-1090-1},
doi = {10.1007/s12274-016-1090-1},
abstract = {Metal-halide perovskites are novel optoelectronic materials that are considered good candidates for solar harvesting and light emitting applications. In this study, we develop a reproducible and low-cost approach for synthesizing highquality cesium lead halide perovskite (CsPbX3, X = Cl, Br, and I or Cl/Br and I/Br) nanocrystals (NCs) by direct heating of precursors in octadecene in air. Experimental results show that the particle size and composition of as-prepared CsPbX3 nanocrystals can be successfully tuned by a simple variation of reaction temperature. The emission peak positions of the as-prepared nanocrystals can be conveniently tuned from the UV to the NIR (360–700 nm) region, and the quantum yield of the as-obtained samples (green and red emissions) can reach up to 87%. The structures and chemical compositions of the as-obtained NCs were characterized by transmission electron microscopy, X-ray diffraction, and elemental analysis. This proposed synthetic route can yield large amounts of high-quality NCs with a one-batch reaction, usually on the gram scale, and could pave the way for further applications of perovskite-based light-emitting and photovoltaic solar cells.}
}