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.
| Original language | English |
|---|---|
| Pages (from-to) | 18236-18243 |
| Number of pages | 8 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 15 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 12 Apr 2023 |
Keywords
- electrical conductive metal−organic frameworks (EC-MOFs)
- in situ growth
- photodetector
- p−n heterojunction
- zinc oxide (ZnO)