| Autor: |
Renrong Zheng, Zhen Wang, Na Wang, Zan Ding, Tongxin Jiang, Lifeng Zhang, Shichao Liu, Haisheng San, Xin Li |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Journal of Science: Advanced Materials and Devices, Vol 7, Iss 4, Pp 100492- (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2468-2179 |
| DOI: |
10.1016/j.jsamd.2022.100492 |
| Popis: |
Self-powered broad-band electrochemical photodetectors (ECPDs) based on broadband photoresponse nanostructured composites are low-cost and promising photoelectrochemical (PEC) devices. In this work a TiO2 nanorod array (TNRA) structure modified by the ZrO2 nanoparticles and metallic single-walled carbon nanotubes (m-SWCNTs) was used to prepare the ECPDs for enabling a high performance ultraviolet-visible (UV-VIS) photoresponse. The ECPDs exhibit a high optical sensitivity with an on/off ratio of 1.59 × 105 and an optical responsivity of 158.67 mA/W under ultraviolet radiation (365 nm) without external bias. The lowest detectable intensity of ultraviolet and visible-light irradiance (465 nm) can reach around 0.1 mW/cm2and 0.18 mW/cm2. The enhanced PEC performance can be attributed to the effective separation and transport of carriers in the PEC system by the type-I band alignment of ZrO2@TiO2 structure and the high conductive network of SWCNTs. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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