Deep-ultraviolet and visible dual-band photodetectors by integrating Chlorin e6 with Ga2O3

• 作者: Yue Zhao Jin-Hao Zang Xun Yang Xue-Xia Chen Yan-Cheng Chen Kai-Yong Li Lin Dong Chong-Xin Shan
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY
• 页码范围: 720-725
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/abf91c

摘要

Gallium oxide (Ga2O3) is a promising material for deep-ultraviolet (DUV) detection.In this work,Chlorin e6 (Ce6)has been integrated with Ga2O3 to achieve a DUV and visible dual-band photodetector,which can achieve multiple target information and improve the recognition rate.The photodetector shows two separate response bands at 268 nm and 456 nm.The DUV response band has a responsivity of 9.63 A/W with a full width at half maximum (FWHM) of 54.5 nm;the visible response band has a responsivity of 1.17 A/W with an FWHM of 45.3 nm.This work may provide a simple way to design and fabricate photodetectors with dual-band response.