Optical Properties of Nanostructure Formed on a Surface of CdZnTe Crystal by Laser Radiation

The 10th International Workshop on Radiation Imaging Detectors: Abstract Book 2008
Artūrs Medvids, Aleksandrs Mičko, Natalija Litovchenko, Oksana Strilchuk, Pāvels Onufrijevs, Artūrs Plūdons

Self-organizing structures of nanometer size are observed on the surface of CdZnTe crystal irradiated by strongly absorbed Nd:YAG laser radiation (LR) at intensities within 4 - 12 MW/cm2. The effect of exciton quantum confinement manifested by a shift to higher energies of the A0,X exciton band of the photoluminescent spectrum is present in structures of 10 – 15 nm in diameter at the top of nano-hills. A graded band gap structure with optical window is formed at the top of nano-hills.

Keywords
Self-organizing structure, Nd:YAG laser, exciton quantum confinement effect, CdZnTe crystal

Medvids, A., Mičko, A., Litovchenko, N., Strilchuk, O., Onufrijevs, P., Plūdons, A. Optical Properties of Nanostructure Formed on a Surface of CdZnTe Crystal by Laser Radiation. In: The 10th International Workshop on Radiation Imaging Detectors: Abstract Book, Finland, Helsinki, 29 Jun-3 Jul., 2008. Helsinki: University of Helsinki, 2008, pp.88-88.

Publication language
English (en)