Recent progress of colloidal quantum dot based solar cells
Wei Huiyun1, Li Dongmei2, 3, †, Zheng Xinhe1, ‡, Meng Qingbo2, 3
       

(color online) (a) Schematic diagram of PbS CQD capped by I− and SCN− and separated by SCN−. (b) Transfer characteristics of CTL (I− capped CQDs) and hybrid CQD FETs. (c) and (d) Trap state densities (Nt) of CTL and hybrid CQD FETs.[134]