Heterovalent-Doping-Enabled Efficient Dopant Luminescence and Controllable Electronic Impurity Via a New Strategy of Preparing II-VI Nanocrystals.

Liu, Jian; Zhao, Qian; Liu, Jia-Long; Wu, Yi-Shi; Cheng, Yan; Ji, Mu-Wei; Qian, Hong-Mei; Hao, Wei-Chang et al. · Adv Mater · 2015

basic_science · Level V

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Abstract

Substitutional heterovalent doping represents an effective method to control the optical and electronic properties of nanocrystals (NCs). Highly monodisperse II-VI NCs with deep substitutional dopants are presented. The NCs exhibit stable, dominant, and strong dopant fluorescence, and control over n- and p-type electronic impurities is achieved. Large-scale, bottom-up superlattices of the NCs will speed up their application in electronic devices.