1. Direct Growth of van der Waals Graphene/MAPbI₃ Heterojunction for Wide Spectral Photodetection
- Author
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Wang, Zeshu, Jin, Jialun, Geng, Xiangshun, Wang, Zhenze, Dun, Guanhua, Du, Jingbo, Qin, Ken, Peng, Jiali, Wang, Yuhao, He, Yichu, Xie, Dan, Tian, He, Yang, Yi, and Ren, Tian-Ling
- Abstract
Here, we demonstrate a high-performance photodetector for wide spectral detection (405 nm-808 nm). The device is based on 2D/3D van der Waals heterojunction (vHJ) by directly integrating MAPbI3 single crystal (SC) onto monolayer graphene with a developed inverse temperature crystallization method (DITC). The proposed photodetector exhibits a high responsivity of 1.45 A/W, an excellent detectivity of
${6}.{67} \times {10} ^{{12}}$ $10^{{4}}$ $69 \, \mu \text{s}/138 \, \mu \text{s}$ - Published
- 2024
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