Preparation of AgBiS2 thin films with vapor-assisted solution method for flexible near-infrared photodetectors
Here, we propose a simple low-temperature solution spin-coating combined with a vacuum-assisted chemical vapor deposition method to fabricate AgBiS2 thin films for flexible near-infrared (NIR) photodetectors. Using a simple metal/semiconductor/metal device as a demonstration, the as-prepared AgBiS2-...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-04-01
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| Series: | Next Energy |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949821X24001406 |
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| Summary: | Here, we propose a simple low-temperature solution spin-coating combined with a vacuum-assisted chemical vapor deposition method to fabricate AgBiS2 thin films for flexible near-infrared (NIR) photodetectors. Using a simple metal/semiconductor/metal device as a demonstration, the as-prepared AgBiS2-based flexible NIR photodetectors (NPDs) exhibit a high linear dynamic range of 103.6 dB. The photodetectors exhibit high responsivity from UV to NIR with a maximum sensitivity of 16.9 A W−1 and a detectivity of 2.31 × 1011 Jones at a bias voltage of 1 V under 850 nm illumination. Meanwhile, after 2700 bending cycles, the flexible devices retain strong bending stability with a negligible decrease in photocurrent. We also built a hemispherical apparatus based on the AgBiS2 flexible NPD to demonstrate its wide-angle detection capability. |
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| ISSN: | 2949-821X |