Document Detail

Dark current suppression in an erbium-germanium-erbium photodetector with an asymmetric electrode area.
MedLine Citation:
PMID:  21479023     Owner:  NLM     Status:  In-Data-Review    
In this work, suppression of the dark current level in a metal-semiconductor-metal (MSM) photodetector fabricated on the intrinsic (i) Ge is achieved by exploiting (1) the Er electrode, providing a relatively high hole barrier, and (2) the concept of asymmetric electrode area, to minimize the Schottky barrier height lowering effect. Compared with a symmetric MSM photodetector fabricated with Ti electrodes, the dark current level was reduced by a factor of about 80. This low dark current i-Ge MSM photodetector is promising for applications requiring low power and a high photo-to-dark-current ratio.
Jin-Hong Park; Hyun-Yong Yu
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics letters     Volume:  36     ISSN:  1539-4794     ISO Abbreviation:  Opt Lett     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-04-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708433     Medline TA:  Opt Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1182-4     Citation Subset:  IM    
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