Migration-Accelerated Quenching of Triplet Excitations of Organic Molecules in Toluene at 77 K

被引：0
|
作者：
M. I. Deryabin
O. V. Vashkevich
A. Yu. Shalnev
机构：
[1] Stavropol' State University,
来源：
Russian Physics Journal | 2004年 / 47卷 / 5期
关键词：
Oxygen; Solid Solution; Toluene; Organic Compound; Naphthalene;
D O I：
10.1023/B:RUPJ.0000046332.79214.78
中图分类号：
学科分类号：
摘要：
The influence of the organic molecule (naphthalene, acenaphthene, and benzophenone) concentration in toluene at 77 K on the phosphorescence parameters of degassed and non-degassed solutions is studied for organic molecule concentrations ranging from 0.025 to 0.8 M. The migration-accelerated quenching of triplet excitations of naphthalene and acenaphthene by oxygen molecules is established. A conclusion is drawn that this quenching mechanism can be one of the main reasons for the influence of the concentration on the phosphorescence parameters of impurity centers in non-degassed solid solutions of organic compounds at 77 K.
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页码：567 / 570
页数：3
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