已传文件：photo/1773121782.png
The teams of Xiong Yi from Wuhan Textile University, Zeng Wei from Anhui University, and Jin Shuo from the Institute of High Energy Physics of the Chinese Academy of Sciences proposed a hierarchical convergence defect engineering repair strategy. They constructed a photovoltaic electrode structure of the ZnO/Bi₂O₃/BiOCl/BP/MXene multi-dimensional heterojunction framework and applied it to sensitive photoelectrochemical/electrostatic coupling sensors. The related research results were published in "Research" under the title "Hierarchically-converged defect engineering with 2D black phosphorus/MXene sequence for sensitive photoelectrochemical-electrostatic sensors". Citation: Wei Zeng, Yuan Zhang, Zhengyin Wu, Zichu Zhang, Liting Deng, Yuan Tian, Mengying Che, Yiming Chen, Yi Xiong, Yumin Wang, et al. Hierarchically Converged Defect Engineering with 2-Dimensional Black Phosphorus/MXene Sequence for Sensitive Photoelectrochemical-Electrostatic Sensors. Research. 2025; 8: 0966. DOI: 10.34133/research.0966
1. Research Background
Multifunctional sensors have extensive applications in health monitoring, environmental perception, and intelligent electronics. Photocatalytic sensors and electrostatic field sensors have attracted attention due to their high sensitivity, especially in the detection of biological electrical signals (such as surface electromyography sEMG). However, traditional electrodes have problems such as weak signals and poor stability, which limit their practical applications. How to precisely control the microstructure and energy level matching of two-dimensional material-based heterojunction devices, and effectively combine the photovoltaic and electrostatic coupling effects, has become a key challenge in current research on intelligent sensor applications.
2. New Research Highlights
This study proposes a hierarchical convergent defect engineering repair strategy, constructing a photovoltaic electrode structure of the ZnO/Bi₂O₃/BiOCl/BP/MXene multi-dimensional heterojunction framework (Figure 1). By successively introducing two-dimensional BP and MXene, the nanoscale pore defects in the three-dimensional framework of BiOCl were precisely repaired, significantly increasing the contact area, energy level matching, and carrier transport path of the electrode, effectively improving the photovoltaic and electrostatic coupling performance (Figure 2).
