20-04-2015
Substitutional heterovalent doping represents an effective method to control the optical and electronic properties of nanocrystals (NCs). Here, 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 has been achieved. Large-scale, bottom-up superlattices of the NCs will speed up their application in electronic devices. The research was conducted at the SSRF beamline 14W1.

Schematic illustration of the preparation process to achieve deep monovalent doping in II−VI NCs.
Links: Jian Liu, Qian Zhao, Jia-Long Liu, Yi-Shi Wu, Yan Cheng, Mu-Wei Ji, Hong-Mei Qian, Wei-Chang Hao, Lin-Juan Zhang, Xiang-Jun Wei, Shou-Guo Wang, Jia-Tao Zhang, Yi Du, Shi-Xue Dou, He-Sun,