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Nanoscale Res Lett. 2012 Sep 20;7(1):514. doi: 10.1186/1556-276X-7-514.

Exciton quantum confinement in nanocones formed on a surface of CdZnTe solid solution by laser radiation.

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1
Riga Technical University, Azenes Street 14, Riga, 1048, Latvia. medvids@latnet.lv.

Abstract

The investigation of surface morphology using atomic force microscope has shown self-organizing of the nanocones on the surface of CdZnTe crystal after irradiation by strongly absorbed Nd:YAG laser irradiation at an intensity of 12.0 MW/cm2. The formation of nanocones is explained by the presence of a thermogradient effect in the semiconductor. The appearance of a new exciton band has been observed after irradiation by the laser which is explained by the exciton quantum confinement effect in nanocones.

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