中国光学（中英文）2025，Vol.18Issue(5)：1036-1043,8.DOI:10.37188/CO.2024-0218
Bi2O3/Bi2S3异质结材料的制备及其光电探测性能研究
Bi2O3/Bi2S3 heterojunction composite preparation and photodetection performance
摘要
Abstract
The Bi2O3/Bi2S3 heterojunction composite was prepared by thermal polymerization combined with room temperature solution method,and its micromorphology,crystal structure and elemental composition were characterized.The results demonstrate that the Bi2O3/Bi2S3 heterojunction composite exhibits a bulk morphology,accompanied by the presence of pores and a relatively rough surface.Based on the Bi2O3/Bi2S3 heterojunction composite,the photodetector was fabricated and its photodetection performance was meas-ured under zero bias voltage.When exposed to ultraviolet(UV)light,the maximum photocurrent(0.32 μA)and response speed(65.65/80.56 ms)of the Bi2O3/Bi2S3 photodetector are significantly enhanced compared to those of the Bi2O3 photodetector.In addition,the device exhibits a wide photodetection band from the UV to the visible(Vis)spectrum,as well as fast and stable self-driven photodetection capability.This is mainly attributed the successful coupling of Bi2O3 and Bi2S3 with a narrow band gap,resulting in the formation of a heterojunction composite that exhibits a type Ⅱ band structure.It is noteworthy that the photodetection per-formance of the device was measured by continuously alternating between blue light on and off for 100 times.This indicates that the Bi2O3/Bi2S3 photodetector exhibits excellent cycle stability.关键词
Bi2O3/Bi2S3/光电探测器/异质结Key words
Bi2O3/Bi2S3/photodetector/heterojunction分类
信息技术与安全科学引用本文复制引用
方向明,张荣科,孙宇,武韦羽,朱建华,游秀芬,高世勇..Bi2O3/Bi2S3异质结材料的制备及其光电探测性能研究[J].中国光学（中英文）,2025,18(5):1036-1043,8.基金项目
中央高校基本科研业务费专项资金资助项目(No.HIT.DZJJ.2023002) （No.HIT.DZJJ.2023002）
太原学院校级一般科研项目(No.23TYYB09) （No.23TYYB09）
山西省高等学校科技创新项目(No.2022L590)Supported by Fundamental Research Funds for the Central Universities(No.HIT.DZJJ.2023002),Research Program of Taiyuan University(No.23TYYB09),Science and Technology Innovation Project of Shanxi Province Colleges and Universities(No.2022L590) （No.2022L590）
