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Spatial-distribution of Mn-related emission in GaP studied by cathodoluminescence and photoluminescence

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Piqueras de Noriega, Javier and Domínguez-Adame Acosta, Francisco and Monteiro, T. and Pereira, E. (1993) Spatial-distribution of Mn-related emission in GaP studied by cathodoluminescence and photoluminescence. Materials Chemistry and Physics, 35 (2). pp. 126-128. ISSN 0254-0584

Official URL: http://dx.doi.org/10.1016/0254-0584(93)90186-P


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Abstract

Cathodoluminescence (CL) from untreated as well as heat-treated GaP:Te:Mn samples has been investigated. Spectra of untreated samples present two emission bands that peak at 585 and 730 nm. The CL image shows bright spots associated with dislocations, as well as doping striations. The red band (730 nm) is higher at these bright spots. Heat treatments enhance the red-band emission, while the bright spot contrast remains. Time-resolved photoluminescence indicates that the red band is due to excitons bound to complexes.


Item Type:Article
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© 1993 Published by Elsevier B.V.

Uncontrolled Keywords:Wafers
Subjects:Sciences > Physics > Materials
ID Code:26996
Deposited On:10 Oct 2014 07:15
Last Modified:09 Feb 2018 15:05

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