Significant Photodiode Quantum Efficiency Improvement and Spectral Response Alteration Through Surface Effects in Vacuum

N. S. Kopeika, Shlomo Hava, Israel Hirsh, Eli Hazout

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Surface effects stemming simply from photodiode operation in vacuum environment are seen to improve quantum efficiency significantly. This is attributed to desorption of surface impurities and consequent reduction of surface recombination and Debye length. Effective depletion layer width, because of junction shallowness, can also be noticeably affected by changes in surface potential and free charge redistribution stemming from desorption of surface impurities. Quantum efficiency enhancement here in vacuum is greatest at visible wavelengths, thus suggesting application in solar cell technology, particularly since Isc, Voc, and fill factor are all increased in vacuum.

Original languageEnglish
Pages (from-to)1198-1206
Number of pages9
JournalIEEE Transactions on Electron Devices
Volume31
Issue number9
DOIs
StatePublished - 1 Jan 1984

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Significant Photodiode Quantum Efficiency Improvement and Spectral Response Alteration Through Surface Effects in Vacuum'. Together they form a unique fingerprint.

Cite this