ELECTRON-CATION RECOMBINATION IN RIGID ORGANIC GLASSES - SIMULATION OF CHARGE-DISTRIBUTION AND ISOTHERMAL LUMINESCENCE KINETICS

被引:9
作者
LAPERSONNEMEYER, C [1 ]
SCHOTT, M [1 ]
机构
[1] UNIV PARIS 7,ECOLE NORM SUPER PHYS SOLIDES GRP,F-75221 PARIS 05,FRANCE
关键词
D O I
10.1016/0301-0104(79)80076-2
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Recent results on isothermal luminescence decays, observed from 10-8 to 104 s after irradiation of a rigid glass at 77 K, are interpreted in terms of tunnelling electron-ion recombination. After 10-6 s, recombination of isolated pairs is dominant. Electron-ion distance distributions are obtained by computer simulation and used to calculate the corresponding decay kinetics I(t). I(t) ∝ t-1.0 is found with realistic chosen parameters throughout the whole time range investigated experimentally, so that tunnelling recombination is quantitatively consistent with observation. Experimental study at shorter times (10-8-10-6 s) indicates a contribution from recombinations of pairs which are not isolated. A very simple computer simulation of these effects is proposed and shown to agree with experiment. © 1979.
引用
收藏
页码:287 / 296
页数:10
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