THE TIME-DEPENDENCE OF LUMINESCENCE IN SOLIDS
THE TIME-DEPENDENCE OF LUMINESCENCE IN SOLIDS
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DOI：
10.1088/0022-3719/17/35/018
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发表时间：
1984-01-01
期刊：
影响因子：
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通讯作者：
DEPOLIGNAC, A
中科院分区：
文献类型：
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作者：
JONSCHER, AK;DEPOLIGNAC, A
对固体中发光衰变时间依赖性的实验数据的回顾表明，经典预期的指数依赖性的例子很少，而且没有双分子定律。普遍存在的长期时间依赖性服从指数在-1 和-2 之间的时间幂律。有人认为，广泛适用的幂律依赖性是多体相互作用主导俘获中心电荷释放动力学的结果。涉及一组或两组此类捕获中心的简单模型可以解释短激励下瞬态响应的大部分观察到的特征。提出了幂律响应的定性物理机制。
A review of experimental data on the time dependence of luminescent decay in solids shows very few examples of the classically expected exponential dependence and none of the bimolecular law. The prevailing long-term time dependence obeys power laws in time with exponents between-1 and-2. It is suggested that the widely applicable power-law dependence is the result of many-body interactions dominating the dynamics of charge release from trapping centres. A simple model involving either one or two sets of such trapping centres can explain most of the observed features of transient response under short excitation. A qualitative physical mechanism is proposed for the power-law response.