InGaN quantum dot photodetectors

L. W. Ji, Y. K. Su, S. J. Chang, S. H. Liu, C. K. Wang, S. T. Tsai, T. H. Fang, L. W. Wu, Q. K. Xue

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Nanometer-scale InGaN self-assembled quantum dots (QDs) have been prepared by growth stop during the metal-organic chemical vapor deposition growth. With a 12 s growth interruption, we successfully formed InGaN QDs with a typical lateral size of 25 nm and an average height of 4.1 nm. The QDs density was about 2 × 1010 cm-2. Nitride-based QD metal-semiconductor-metal (MSM) photodetectors were also fabricated. It was found that we could significantly enhance the photocurrent to dark current contrast ratio of the MSM photodetectors by the use of QD structure.

Original languageEnglish
Pages (from-to)1753-1756
Number of pages4
JournalSolid-State Electronics
Volume47
Issue number10
DOIs
Publication statusPublished - 2003 Oct

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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