Giant photoluminescence enhancement in deuterated highly strained InAs/GaAs quantum wells
- 5 September 1994
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 65 (10) , 1254-1256
- https://doi.org/10.1063/1.112087
Abstract
The photoluminescence of InAs/GaAs pseudomorphic single quantum wells, of width 1, 1.2, and 1.6 monolayers, is studied before and after diffusion of monoatomic deuterium into the samples. The luminescence shows a red shift for increasing nominal well width, suggesting an interface roughness on a scale much smaller than the exciton size. The luminescence efficiency increases by several orders of magnitude after sample deuteration. A discussion about the origin of radiative recombination in these heterostructures, before and after deuteration, is also given.Keywords
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