Self-powered electrochemical wide-band photodetectors using ZrO2@TiO2 nanorod arrays modified with single-walled carbon nanotubes

• DOI: 10.1016/j.jsamd.2022.100492
• Publication Date: 2022-08-14T21:38:33Z
• Authors: Renrong Zheng; Zhen Wang; Na Wang; Zan Ding; Tongxin Jiang; Lifeng Zhang; Shichao Liu; Haisheng San; Xin Li
• Keywords: Nanorod; Ultraviolet; Visible spectrum

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 metallic single-walled carbon nanotubes (m-SWCNTs) was used to prepare ECPDs for enabling high performance ultraviolet-visible (UV-VIS) photoresponse. The exhibit optical sensitivity with an on/off ratio of 1.59 × 105 responsivity 158.67 mA/W under ultraviolet radiation (365 nm) without external bias. lowest detectable intensity visible-light irradiance (465 can reach around 0.1 mW/cm2and 0.18 mW/cm2. enhanced PEC be attributed effective separation transport carriers in system type-I band alignment ZrO2@TiO2 conductive network SWCNTs.