Self-powered electrochemical sensor based on photoelectrode: An up-to-date review

• Published in: Coordination chemistry reviews 2024-11, Vol.518, p.216095, Article 216095
• Main Authors: Zhu, Junlun, Shao, Dong, Wen, Wei, Tian, Zhengfang, Zhang, Xiuhua, Wang, Shengfu
• Format: Article
• Language: English
• Subjects: Photoassisted zinc-air battery; Photocatalytic fuel cell; Photoelectrochemical; Photoelectrode; Self-powered electrochemical sensor
• ISSN: 0010-8545; 1873-3840
• DOI: 10.1016/j.ccr.2024.216095

[Display omitted] •The features and designed strategy of photoelectrode has been discussed comprehensively.•The diverse fields of application for SPES based on photoelectrode have been described in detail.•SPES-based on PFC, SPES-based on PEC, SPES-based on PZAB and others have been discussed to detect various target.•Comparative analysis of SPES based on photoelectrode performance and perspective has been discussed briefly. Self-powered electrochemical sensor (SPES), an analytical sensing device without external power supply, is integrated with the dual functions of power supply and detection performance. Compared with traditional electrochemical sensors, SPES has many potential advantages, such as easy miniaturization, easy portability, wireless transmission, intelligence, and energy self-supply. In the background of the booming Internet of Things and artificial intelligence, the self-powered operation of intelligent sensing equipment is an ideal choice. As a new type of electrochemical sensing device, SPES will receive extensive attention in the fields of electroanalytical chemistry, including wearable sensing devices, portable sensing devices, implantable devices, smart sensing devices, and the like. Herein, an overview of recent developments achieved in SPES based on photoelectrode, including SPES-based on photocatalytic fuel cell, SPES-based on photoelectrochemical, SPES-based on photoassisted zinc-air battery and others, is provided for the application of disease diagnosis, environmental monitoring, food safety, biomedicine. We summarized the preparation of different photoelectrode and the composition of photoelectrochemical system for sensing. The photoelectrode involved in the excellent photoelectric material are particularly emphasized and the related sensing strategies are mentioned. Finally, the challenges, future trends, and prospects associated with SPES based on photoelectrode are also discussed.