The effect of electron recombination processes on the luminescence kinetics of ZnO ceramics

被引：1

作者：

Chernenko, K. A. ^{[1
]}

Grigor'eva, L. ^{[2
]}

Gorokhova, E. I. ^{[3
]}

Rodnyi, P. A. ^{[1
]}

机构：

[1] St Petersburg State Tech Univ, St Petersburg 195251, Russia

[2] Univ Latvia, Inst Solid State Phys, LV-1063 Riga, Latvia

[3] SI Vavilov State Opt Inst, All Russian Sci Ctr, Res Inst Opt Mat Technol, St Petersburg 192171, Russia

来源：

OPTICS AND SPECTROSCOPY | 2015年 / 118卷 / 03期

关键词：

POINT-DEFECTS; PHOTOLUMINESCENCE;

D O I：

10.1134/S0030400X15030108

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have examined spectral and kinetic properties of photoluminescence of zinc oxide ceramics. Ceramics with and without addition of gallium have been studied. In the photoluminescence spectrum, we have observed two luminescence bands with maxima at 377-379 (near-band-edge luminescence) and 490 nm (green luminescence). It has been shown that the decay curves of the green luminescence are determined by two processes with different time and temperature properties, as well as the kinetics of release of carriers from electron traps. The relations between luminescence decay curves and mechanisms of luminescence excitation, as well as energy transfer processes, have been discussed.

引用

页码：425 / 430

页数：6

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