Fast and High-Performance Self-Powered Photodetector Based on the ZnO/Metal-Organic Framework Heterojunction.



Wang, Yingyi, Liu, Lin, Shi, Yixiang, Li, Shengzhao, Sun, Fuqin, Lu, Qifeng, Shen, Yaochun ORCID: 0000-0002-8915-1993, Feng, Simin and Qin, Sujie
(2023) Fast and High-Performance Self-Powered Photodetector Based on the ZnO/Metal-Organic Framework Heterojunction. ACS applied materials & interfaces, 15 (14). pp. 18236-18243.

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Abstract

Electrical conductive metal-organic frameworks (EC-MOFs) are emerging as an appealing class of highly tailorable electrically conducting materials with potential applications in optoelectronics. Here, we in situ grew nickel hexahydroxytriphenylene (Ni-CAT) on the surface of ZnO nanorods (NRs). The self-powered photodetectors (PDs) were fabricated with heterojunctions formed at the interface of ZnO NRs and Ni-CAT. With this, the built-in electric field (BEF) can effectively separate the photogenerated electron-hole pairs and enhance the photoresponse. We observe that the PDs based on hybrid ZnO/Ni-CAT with 3 h of growth time (ZnO/Ni-CAT-3) show good photoresponse (137 μA/W) with the fast rise (3 ms) and decay time (50 ms) under 450 nm light illumination without biased voltage. This work provides a facile and controllable method for the growth of the ZnO/Ni-CAT heterojunction with an effective BEF zone, which will benefit their optoelectronic applications.

Item Type: Article
Uncontrolled Keywords: zinc oxide (ZnO), electrical conductive metal-organic frameworks (EC-MOFs), in situ growth, p-n heterojunction, photodetector
Divisions: Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science
Depositing User: Symplectic Admin
Date Deposited: 17 Apr 2023 11:39
Last Modified: 03 May 2023 09:58
DOI: 10.1021/acsami.3c01740
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3169472