Room-temperature Mid-infrared Photodetector via Hybrid Graphene Nanoribbon-C60 Phototransistor

• Main Authors: Yu, Xuechao, Dong, Zhaogang, Yang, Joel K. W., Wang, Qijie
• Other Authors: School of Electrical and Electronic Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2016
• Subjects: Photodetectors; Solid state detector; Infrared
• Online Access: https://hdl.handle.net/10356/80389; http://hdl.handle.net/10220/40816
• Institution: Nanyang Technological University

We demonstrated that depositing HfO2 film on graphene nanoribbons greatly enhance the mobility through weakening the Coulombic interactions. As a result, the graphene nanoribbon photodetectors with HfO2 layer exhibits high responsivity of ~0.4 A/W at room temperature.