High-performance PbS quantum dot vertical field-effect phototransistor using graphene as a transparent electrode

• Published in: Applied physics letters Vol. 109; no. 26
• Main Authors: Che, Yongli, Zhang, Yating, Cao, Xiaolong, Song, Xiaoxian, Zhang, Haiting, Cao, Mingxuan, Dai, Haitao, Yang, Junbo, Zhang, Guizhong, Yao, Jianquan
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 26.12.2016
• Subjects: Applied physics; Electrodes; Graphene; Irradiance; Lead sulfides; Quantum dots; Quantum efficiency; Reproducibility; Thickness

Solution processed photoactive PbS quantum dots (QDs) were used as channel in high-performance near-infrared vertical field-effect phototransistor (VFEpT) where monolayer graphene embedded as transparent electrode. In this vertical architecture, the PbS QD channel was sandwiched and naturally protec...