Semiconductor Physics, Quantum Electronics & Optoelectronics. 2014. V. 17, N 4. P. 374-379.
https://doi.org/10.15407/spqeo17.04.374

                                                                 

Luminescent properties of fine-dispersed ZnS:Cu prepared using self-propagating high-temperature synthesis
Yu.Yu. Bacherikov1,*, S.Ye. Zelensky2, A.G. Zhuk1, N.A. Semenenko1 and O.S. Krylova2

1V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine
41, prospect Nauky, 03028 Kyiv, Ukraine, *e-mail: Yuyu@isp.kiev.ua
2Taras Shevchenko Kyiv National University, 64/13, Volodymyrska str., 01601 Kyiv, Ukraine

Abstract. Fine-dispersed ZnS doped with Cu was prepared using self-propagating high-temperature synthesis. In the photoluminescence excitation spectra, the blue shift of the host lattice excitation peak is observed for powder ZnS:Cu that contains nano- and meso-sized (submicron) particles. The obtained spectra indicate that radiative recombination in meso-sized particles is significantly reduced as compared to micro-sized particles, which can be caused by the increase of non-radiative relaxation processes in surface states.

Keywords:luminescent properties, nanoparticle, radiative recombination.

Manuscript received 30.07.14; revised version received 05.09.14; accepted for publication 00.00.14; published online 00.00.14.

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