OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 36, Iss. 7 — Apr. 1, 2011
  • pp: 1182–1184

Dark current suppression in an erbium–germanium–erbium photodetector with an asymmetric electrode area

Jin-Hong Park and Hyun-Yong Yu  »View Author Affiliations


Optics Letters, Vol. 36, Issue 7, pp. 1182-1184 (2011)
http://dx.doi.org/10.1364/OL.36.001182


View Full Text Article

Enhanced HTML    Acrobat PDF (543 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

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.

© 2011 Optical Society of America

OCIS Codes
(040.5160) Detectors : Photodetectors
(230.5160) Optical devices : Photodetectors
(310.3840) Thin films : Materials and process characterization

ToC Category:
Detectors

History
Original Manuscript: January 4, 2011
Revised Manuscript: February 15, 2011
Manuscript Accepted: February 17, 2011
Published: March 25, 2011

Citation
Jin-Hong Park and Hyun-Yong Yu, "Dark current suppression in an erbium–germanium–erbium photodetector with an asymmetric electrode area," Opt. Lett. 36, 1182-1184 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-7-1182

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited