›› 2015, Vol. 24 ›› Issue (3): 38501-038501.doi: 10.1088/1674-1056/24/3/038501
• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇 下一篇
汪涵a b, 金湘亮a b, 陈长平a b, 田满芳a b, 朱柯翰c
Wang Han (汪涵)a b, Jin Xiang-Liang (金湘亮)a b, Chen Chang-Ping (陈长平)a b, Tian Man-Fang (田满芳)a b, Zhu Ke-Han (朱柯翰)c
摘要: A novel integrated ultraviolet (UV) photodetector has been proposed, which realizes a high UV selectivity by combining a conventional UV-selective photodiode with an extra infrared (IR) photodiode. The IR photodiode is designed for compensating the photocurrent response of the UV photodiode in the infrared band and is 15 times smaller than the UV one. The integrated photodetector has been fabricated in a 0.35 μm standard CMOS technology. Some critical performance indices of this new structure photodetector, such as spectral responsivity, breakdown voltage, quenching waveform, and transient response, are measured and analyzed. Test results show that the complementary UV-IR photodetector has a maximum spectral responsivity of 0.27 A · W-1 at the wavelength of 400 nm. The device has a high UV selectivity of 3000, which is much higher than that of the single UV photodiode.
中图分类号: (Semiconductor-device characterization, design, and modeling)