Effects of electron correlation on the photocurrent in quantum dot infrared photodetectors

Yia Chung Chang, David M.T. Kuo

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The effects of electron correlation on the photocurrent in quantum dot infrared photodetectors were investigated. Results showed that Coulomb interaction and level mixing in the many-body open system lead to double peaks associated with the intraband transitions involving two lowest levels of the quantum dot. The photocurrent displayed a negative differential photoconductance due to Coulomb blockade.

Original languageEnglish
Pages (from-to)156-158
Number of pages3
JournalApplied Physics Letters
Volume83
Issue number1
DOIs
StatePublished - 7 Jul 2003

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