AN IMPROVED EXPERIMENTAL-DETERMINATION OF EXTERNAL PHOTOLUMINESCENCE QUANTUM EFFICIENCY

Authors
DEMELLO JC WITTMANN HF FRIEND RH
Citation
Jc. Demello et al., AN IMPROVED EXPERIMENTAL-DETERMINATION OF EXTERNAL PHOTOLUMINESCENCE QUANTUM EFFICIENCY, Advanced materials, 9(3), 1997, pp. 230
Citations number
6
Categorie Soggetti
Material Science
Journal title
Advanced materials → ACNP
ISSN journal
09359648
Volume
9
Issue
3
Year of publication
1997
Database
ISI
SICI code
0935-9648(1997)9:3<230:AIEOEP>2.0.ZU;2-E
Abstract
The external photoluminescence quantum yield of, for example, thin fil m semiconductors can be conveniently determined using the improved int egrating-sphere method (see Figure) presented here. Spectrally resolve d detection allows the excitation source and the emission to be distin guished. The method will be particularly useful for samples with small Stokes' shifts or low photoluminescence quantum yields or for highly scattering samples.