A5085085566- Nanowire Synthesis and Applications
- Graphene research and applications
- Silicon Nanostructures and Photoluminescence
- Semiconductor materials and interfaces
- 2D Materials and Applications
State Key Laboratory of Silicon Materials
2022
Zhejiang University
2022
Graphene/silicon Schottky junction diodes have been extensively studied and widely used in photodetection. However, limited to the low light absorption of single-layer graphene bandgap silicon, graphene/silicon devices exhibit quantum efficiency infrared region. Here, we demonstrate a high-performance near-infrared diode by integrating silicon with macroscopic assembled nanofilms (nMAG). Because intense absorption, work function, long carrier lifetime nMAG, device shows...
p-type silicon (p-Si)/macro-assembled graphene nanofilm (nMAG)/n-type (n-Si) heterojunction is utilized to fabricate near-infrared photodetector. Dual built-in electric fields were established in the same direction at p-Si/nMAG and nMAG/n-Si heterojunctions, providing an enhanced electron-hole separation ability. The p-Si/nMAG/n-Si device has realized responsivities of 90 mA/W 45 under 900 nm 1064 illumination room temperature corresponding external quantum efficiency (EQE) 11.8% 5.2%,...