Plasmonic heterostructure Bi2S3/Ti3C2 with continuous photoelectron injection mediated near-infrared self-powered photoelectrochemical sensing

• DOI: 10.1039/d2cc05683f
• Publication Date: 2023-01-03T10:21:32Z
• Authors: Ding Jiang; Yude Zhang; Xiaojiao Du; Linhua Zhang; Xueling Shan; Wenchang Wang; Hiroshi Shiigi; Zhidong Chen
• Keywords: Photocurrent; Photoelectric effect

Herein, a novel near-infrared (NIR) self-powered photoelectrochemical platform was constructed based on nonmetallic plasmon Ti3C2 MXene coupled with sulphur vacancy engineered Bi2S3. The continuous photoelectron injection from Bi2S3 to induced stable SPR effect and high photoelectric conversion efficiency, which is beneficial for developing high-performance NIR biosensors. As proof of concept, sensitive sensor by conjunction an aptamer using Microcystin-RR as model analyte, one the most common toxic hepatotoxins released cyanobacteria.