4H–SiC Avalanche Photodiode Linear Array Operating in Geiger Mode

4H–SiC Avalanche Photodiode Linear Array Operating in Geiger Mode

In this study, a 50-pixel linear array of 4H–SiC ultraviolet avalanche photodiodes operating in Geiger mode is reported for the first time. The 50 pixels within the linear array are all capable of detecting single photons but with a small number of them suffering from extra leakage curren...

Full description

Saved in:
Bibliographic Details
Main Authors: Lianghui Li, Dong Zhou, Hai Lu, Wenkai Liu, Xiaofan Mo, Fangfang Ren, Dunjun Chen, Ruiqi Wang, Guanglei Li, Rong Zhang, Youdou Zheng
Format: Article
Language:English
Published: IEEE 2017-01-01
Series:IEEE Photonics Journal
Subjects:
4H-SiC
avalanche photodiodes
linear array
ultraviolet photodetector
Geiger mode.
Online Access:https://ieeexplore.ieee.org/document/8031321/
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this study, a 50-pixel linear array of 4H&#x2013;SiC ultraviolet avalanche photodiodes operating in Geiger mode is reported for the first time. The 50 pixels within the linear array are all capable of detecting single photons but with a small number of them suffering from extra leakage current near avalanche breakdown. The enhanced leakage is likely correlated with structural defects existing within the epitaxial structure, which would lead to higher dark count rate (DCR) at the same single photon detection efficiency (SPDE) in Geiger mode. For a low-leakage avalanche photodiode device within the linear array, a room temperature SPDE of 15.4&#x0025; at 280&#x00A0;nm is obtained with a corresponding DCR of 2.5 Hz&#x002F;&#x03BC;m<sup>2</sup>.
ISSN:1943-0655

Similar Items