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IEAP - Institute of Experimental and Applied Physics CTU - Czech Technical University in Prague
CTU - Czech Technical University in Prague
Publication  > Articles in Impacted Journals  > 'Changes of MQW photoluminescence under alpha particle irradiation'
Changes of MQW photoluminescence under alpha particle irradiation

Author

Year
2001

Scientific journal
Super Lattices & Microstructures 29 (2001) 281-285


Abstract
Undoped multiple quantum well (MQW) samples grown by the molecular beam epitaxy method were irradiated by 5.15 MeV energy alpha particles. A strong influence of irradiation on the photoluminescence (PL) intensity was observed in these nearly intrinsic samples: the PL intensity at liquid nitrogen and room temperatures decreased by more than two orders of magnitude at alpha particle fluence of 10(11) cm(-2). The dependence of the PL intensity on irradiation dose is described by a rate equation model that takes into account the generation of nonradiative point centers in barriers and wells of the MQW structure during irradiation.

Cite article as:
C. Granja, "Changes of MQW photoluminescence under alpha particle irradiation", Super Lattices & Microstructures 29 (2001) 281-285 (2001)

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