دورية أكاديمية
Self‐Powered Photodetector Based on Perovskite/NiOx Heterostructure for Sensitive Visible Light and X‐Ray Detection
| العنوان: | Self‐Powered Photodetector Based on Perovskite/NiOx Heterostructure for Sensitive Visible Light and X‐Ray Detection |
|---|---|
| المؤلفون: | Kewen Tao, Chenwei Xiong, Jiachun Lin, Decai Ma, Shaopeng Lin, Biao Wang, Huashan Li |
| المصدر: | Advanced Electronic Materials, Vol 9, Iss 3, Pp n/a-n/a (2023) |
| بيانات النشر: | Wiley-VCH, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Electric apparatus and materials. Electric circuits. Electric networks LCC:Physics |
| مصطلحات موضوعية: | halide perovskites, heterojunction, photoresponse, self‐powered photodetector, X‐ray sensitivity, Electric apparatus and materials. Electric circuits. Electric networks, TK452-454.4, Physics, QC1-999 |
| الوصف: | Abstract Self‐powered halide perovskite X‐ray detectors have evoked busting interests because they present outstanding properties such as low power consumption, high sensitivity, and integrability without external power source. Nevertheless, existing self‐powered X‐ray detectors exhibit low sensitivity due to the insufficient charge separation and transport. Herein, a self‐powered photodetector for sensitive X‐ray and photodetection based on single‐crystalline perovskite FAPbBr3/NiOx heterostructure is demonstrated. The built‐in field of FAPbBr3/NiOx heterojunction provides a driving force for separation and transport of photoexcited carriers. Without an external power supply, the photodetector presents excellent photoresponse performance under 450 nm light illumination, including high photoresponsivity (123.6 mA W−1), good detectivity (D = 7.1 × 1011 Jones), and ultrafast response/recovery time (10/200 ns). Simultaneously, the device achieves photovoltaic effect of 0.80 V and a large mobility–lifetime product of 1.1 × 10−3 cm2 V−1, which enable a superior X‐ray sensitivity of 402 µC Gyair−1 cm−2 at zero bias voltage. These results imply that the simple combination of perovskite single crystal and a hole transporting layer provides a flexible platform for the realization of energy‐saving self‐powered photodetector in visible light and X‐rays. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2199-160X 99454068 |
| Relation: | https://doaj.org/toc/2199-160X |
| DOI: | 10.1002/aelm.202201222 |
| URL الوصول: | https://doaj.org/article/72fa673d99454068b6790ca9c1ddebfe |
| رقم الأكسشن: | edsdoj.72fa673d99454068b6790ca9c1ddebfe |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 2199160X 99454068 |
|---|---|
| DOI: | 10.1002/aelm.202201222 |