2D Programmable Photodetectors Based on WSe <sub>2</sub> /h‐BN/Graphene Heterojunctions
Programmable photovoltaic photodetectors based on 2D materials can modulate optical and electronic signals in parallel, making them particularly well-suited for optoelectronic hybrid dual-channel communication. This work presents a programmable non-volatile bipolar semi-floating gate photovoltaic photodetector (SFG-PD) constructed using tungsten diselenide (WSe<sub>2</sub>), hexagonal boron nitride (h-BN), and graphene (Gra). By controlling the voltage pulses applied to the control gate, the device generates opposing built-in electric field junctions (p<sup>+</sup>-p and n-p junctions), enabling reversible switching between positive and negative light responses with a rapid response time of up to 2.02 µs. Moreover, the application of this device is demonstrated in dual-channel optoelectronic hybrid communication, offering a practical solution for achieving high-speed, large-capacity, low-loss, and secure multi-channel communication.
Authors
- Liangliang Lin (ORCID: https://orcid.org/0000-0002-4633-9531)
- Haiyan Nan
- Peng Xiao (ORCID: https://orcid.org/0000-0002-4711-2566)
- Xiaofeng Gu (ORCID: https://orcid.org/0000-0002-5560-6419)
- Jialing Jian (ORCID: https://orcid.org/0000-0001-6809-6588)
- Shaoqing Xiao (ORCID: https://orcid.org/0000-0002-0564-5532)
- Qianqian Wu (ORCID: https://orcid.org/0000-0002-5995-0049)
- Xingyu Zhou
- Zhengjin Weng (ORCID: https://orcid.org/0009-0008-7550-3151)
- Wei Kong (ORCID: https://orcid.org/0000-0002-7965-4407)
- Zhihao Wang (ORCID: https://orcid.org/0000-0002-8136-1726)
- Jian Li (ORCID: https://orcid.org/0009-0001-9687-441X)
- Xiang Xu (ORCID: https://orcid.org/0009-0009-9282-2098)
Institutions
- Jiangnan University (CN)
- Centre National de la Recherche Scientifique (FR)
- Westlake University (CN)
- Laboratoire Ondes et Matière d'Aquitaine (FR)
Publication Details
- Journal
- Advanced Science
- Published
- 2025-04-04
- DOI
- https://doi.org/10.1002/advs.202417300
- Citations
- 14
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 7.25
Funders
- Natural Science Foundation of Jiangsu Province
- Higher Education Discipline Innovation Project