Electrical and optical characterization of energy states in self-assembled InAs/GaAs quantum dots with size distribution

Sung Ho Hwang, Jung Il Lee, Jin Dong Song, Won Jun Choi, Il Ki Han, Soo Kyung Chang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We report effects of the size and the energy state distribution on the electrical and optical properties in self-assembled InAs quantum dots. The results of characteristics measured using atomic force microscopy, photoluminescence and dark current are analyzed by way of a simulation assuming a Gaussian distribution in size and related energies. The samples investigated in this study are InAs/GaAs quantum dot infrared photodetector structures with an AlGaAs blocking layer grown by molecular beam epitaxy at different growth modes.

Original languageEnglish
Pages (from-to)1023-1028
Number of pages6
JournalKey Engineering Materials
Volume277-279
Issue numberI
DOIs
Publication statusPublished - 2005 Jan 1

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Electrical and optical characterization of energy states in self-assembled InAs/GaAs quantum dots with size distribution'. Together they form a unique fingerprint.

  • Cite this