中国物理B ›› 2019, Vol. 28 ›› Issue (10): 107801-107801.doi: 10.1088/1674-1056/ab3e44
所属专题: SPECIAL TOPIC — A celebration of the 100th birthday of Kun Huang
• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇 下一篇
Yanxu Chen(陈彦旭), Dongliang Xu(许栋梁), Kaikai Xu(徐开凯), Ning Zhang(张宁), Siyang Liu(刘斯扬), Jianming Zhao(赵建明), Qian Luo(罗谦), Lukas W. Snyman, Jacobus W. Swart
Yanxu Chen(陈彦旭)1, Dongliang Xu(许栋梁)1, Kaikai Xu(徐开凯)1, Ning Zhang(张宁)1, Siyang Liu(刘斯扬)2, Jianming Zhao(赵建明)1, Qian Luo(罗谦)1, Lukas W. Snyman3, Jacobus W. Swart4
摘要: Si p+n junction diodes operating in the mode of avalanche breakdown are capable of emitting light in the visible range of 400-900 nm. In this study, to realize the switching speed in the GHz range, we present a transient model to shorten the carrier lifetime in the high electric field region by accumulating carriers in both p and n type regions. We also verify the optoelectronic characteristics by disclosing the related physical mechanisms behind the light emission phenomena. The emission of visible light by a monolithically integrated Si diode under the reverse bias is also discussed. The light is emitted as spatial sources by the defects located at the p-n junction of the reverse-biased diode. The influence of the defects on the electrical behavior is manifested as a current-dependent electroluminescence.
中图分类号: (Electroluminescence)