The role of hydrogen in luminescence of electrochemically oxidized porous Si layer

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Remarkable improvements of photoluminescence (PL) efficiency together with large blueshift of PL peak wavelength have been achieved by electrochemical oxidation. It is known from Fourier transform infrared (FT-IR) measurements that the SiO2 covering on pore walls has discontinuities where the surface states are terminated by hydrogen. Dramatic degradation of luminescence transitions in anodically oxidized PSL, due to thermal hydrogen desorption, indicates the importance of hydrogen in electrochemical surface passivation.

Original languageEnglish
Pages (from-to)121-124
Number of pages4
JournalJournal of Luminescence
Volume57
Issue number1-6
DOIs
Publication statusPublished - 1993

Fingerprint

Luminescence
Hydrogen
luminescence
Photoluminescence
hydrogen
photoluminescence
electrochemical oxidation
Electrochemical oxidation
Surface states
Fourier Analysis
Electron transitions
Passivation
passivity
Desorption
discontinuity
Fourier transforms
coverings
Hot Temperature
desorption
degradation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Atomic and Molecular Physics, and Optics

Cite this

The role of hydrogen in luminescence of electrochemically oxidized porous Si layer. / Vázsonyi, E.; Koós, M.; Jalsovszky, G.; Pócsik, I.

In: Journal of Luminescence, Vol. 57, No. 1-6, 1993, p. 121-124.

Research output: Contribution to journalArticle

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