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High external quantum efficiency of planar semiconductor structures

Catchpole, Kylie; Lin, K.L.; Campbell, Patrick; Green, Martin Andrew; Bett, A.W; Dimroth, F


We have measured a very high photoluminescence external quantum efficiency (EQE) of 92% for a GaAs/GaInP double heterostructure mounted on a planar substrate. The measurement was made using a system we developed for accurately measuring the external quantum efficiency of highly radiatively efficient structures. The technique involves measuring uncalibrated photoluminescence and thermal signals from an optically pumped structure, as a function of incident laser power. The ac measurement...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: Semiconductor Science and Technology
DOI: 10.1088/0268-1242/19/11/003


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