Enhanced Photodetection of Monocrystalline CsPbBr <sub>3</sub> Photoconductor Enabled by Largely Variable Contact Resistance of Graphene Electrodes
) over a wide range and thereby an approximately 2 orders of magnitude enhancement in the light-to-dark ratio of the MG-contacted photoconductor. Enhanced detectivity under weak illumination and an improved response rate are also achieved. Furthermore, the chemical inertness of carbon-based multilayer graphene electrodes brings about a pronounced suppression of photocurrent drift. The transparent MGE provides a method for achieving wide-range changes in contact resistance to realize photodetection and also offers a feasible approach for the assembly of efficient and stable perovskite optoelectronics.
Authors
- Siyu Li (ORCID: https://orcid.org/0000-0003-3879-3395)
- Biao Xie
- Yiliu Wang (ORCID: https://orcid.org/0000-0003-3560-9249)
- Kaixin Niu (ORCID: https://orcid.org/0009-0000-0022-4096)
- Longbin Zhang
- Zehao Li
- Weiqi Gao
- Xiaoyu Sun
- Jinding Zhang
Institutions
- Hunan University (CN)
Publication Details
- Journal
- ACS Nano
- Published
- 2026-04-20
- DOI
- https://doi.org/10.1021/acsnano.5c21884
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China