journal article·2021-07-21

Donor–Acceptor Compensated ZnO Semiconductor for Photoelectrochemical Biosensors

Delun Chen, Xue Zou, Fan Dong, Chao Zhen, Dan Xiao, Xiaohong Wang, Qiang Wu, Yang Cao, Jinchun Tu

ACS Applied Materials & Interfaces· Volume 13· Issue 28
Publisher page

Abstract

Hindering the recombination of a photogenerated carrier is a crucial method to enhance the photoelectrochemical performance of ZnO due to its high exciton binding energy. Herein, the intramolecular donor-acceptor compensated semiconductor ZnO (I-D/A ZnO), introducing C dopants and oxygen vacancies, was prepared with the assistance of ascorbic acid (AA). According to the DFT calculations, the asymmetry DOS could lead to the longer carrier lifetime and the smaller electron transfer resistance. Then, the photoelectrochemical biosensor toward glucose was regarded as a model to discuss the application of ZnO in biosensors. As a result, the biosensor based on I-D/A ZnO showed good performance with high sensitivity, low limit of detection, and fine anti-interference, meaning that I-D/A ZnO is a promising semiconductor for photoelectrochemical biosensors.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced biosensing and bioanalysis techniques · ZnO doping and properties · Advanced Photocatalysis Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Advanced Materials of Tropical Island Resources, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Key Laboratory of Green and Technology, Ministry of Education, College of Chemistry and College of Chemical Engineering, Sichuan University, Chengdu 610065, China

School of Tropical Medicine and Laboratory Medicine, MOE Key Laboratory of Emergency and Trauma, Hainan Medical University, Haikou 571199, China

Key Laboratory of Child Cognition & Behavior Development of Hainan Province, Qiongtai Normal University, Haikou 571127, China

Funding

Chinese Academy of Medical Sciences · Youth Innovation Promotion Association of the Chinese Academy of Sciences · National Natural Science Foundation of China · Hainan Province · MOE Key Laboratory of Emergency and Trauma, Hainan Medical University

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