Multi-dimensional optical information acquisition based on a misaligned unipolar barrier photodetector
Acquiring multi-dimensional optical information, such as intensity, spectrum, polarization, and phase, can significantly enhance the performance of photodetectors. Incorporating these dimensions allows for improved image contrast, enhanced recognition capabilities, reduced interference, and better adaptation to complex environments. However, the challenge lies in obtaining these dimensions on a single photodetector. Here we propose a misaligned unipolar barrier photodetector based on van der Waals heterojunction to address this issue. This structure enables spectral detection by switching between two absorbing layers with different cut-off wavelengths for dual-band detection. For polarization detection, anisotropic semiconductors like black phosphorus and black arsenic phosphorus inherently possess polarization-detection capabilities without additional complex elements. By manipulating the crystal direction of these materials during heterojunction fabrication, the device becomes sensitive to incident light at different polarization angles. This research showcases the potential of the misaligned unipolar barrier photodetector in capturing multi-dimensional optical information, paving the way for next-generation photodetectors.
Authors
- Ruotong Yin (ORCID: https://orcid.org/0000-0002-1370-0503)
- Yan Chen (ORCID: https://orcid.org/0009-0000-4076-867X)
- Jun Ge (ORCID: https://orcid.org/0000-0002-3159-8573)
- Junhao Chu (ORCID: https://orcid.org/0000-0003-1867-9296)
- Ning Dai (ORCID: https://orcid.org/0000-0002-6164-4331)
- Weida Hu (ORCID: https://orcid.org/0000-0001-5278-8969)
- Tie Lin (ORCID: https://orcid.org/0000-0002-4510-268X)
- Hong Shen (ORCID: https://orcid.org/0000-0001-6283-6506)
- Chong Tan (ORCID: https://orcid.org/0000-0002-9691-7635)
- Hanxue Jiao (ORCID: https://orcid.org/0000-0002-2427-3447)
- Jianlu Wang (ORCID: https://orcid.org/0000-0002-0388-6148)
- Hugen Yan (ORCID: https://orcid.org/0000-0001-8423-6069)
- Xinning Huang (ORCID: https://orcid.org/0000-0002-0610-4551)
- Xudong Wang (ORCID: https://orcid.org/0000-0002-0261-6736)
- Xiangjian Meng (ORCID: https://orcid.org/0000-0003-4178-9362)
- Shukui Zhang (ORCID: https://orcid.org/0000-0002-7202-0057)
- Qianru Zhao
- Shenyang Huang (ORCID: https://orcid.org/0000-0001-8788-8652)
Institutions
- Fudan University (CN)
- San’an Optoelectronics (China) (CN)
- Shanghai Institute of Technical Physics (CN)
- Institute for Advanced Study (DE)
- Shanghai Institute of Computing Technology (CN)
- University of Chinese Academy of Sciences (CN)
- State Key Laboratory of Surface Physics
Publication Details
- Journal
- Nature Communications
- Published
- 2024-08-16
- DOI
- https://doi.org/10.1038/s41467-024-51378-7
- Citations
- 32
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 3.75
Funders
- Natural Science Foundation of Shanghai
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- China Postdoctoral Science Foundation
- Hangzhou Science and Technology Bureau