Viscosity‐Dependent Ion Recombination Luminescence in Organic Liquids and Solids from Electron and Gamma Irradiation
作者： James A. Leone , William H. Hamill
DOI: 10.1063/1.1670047
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摘要: Recombination luminescence of triphenylamine (TPA), both fluorescence and phosphorescence, has been used to investigate ionic processes in (a) γ‐irradiated 3‐methylpentane (3MP) at 77°K, (b) thermoluminescence (TL) 3MP, (c) 1‐MeV electron‐pulse‐irradiated paraffin oil squalane from 215°–298°K. The shape the time‐dependent decay luminescent intensity, I(t), was independent a 500‐fold change irradiation dose, providing evidence for substantially complete correlation geminate charge pairs. Photoionization TPA under otherwise similar conditions led same which provides that distribution, P(R), separation produced by γ is determined very low‐energy electrons. TL curves part showed two well‐defined maxima intensity I′ attributed recombination TPA+− e− 83°K I″ TPA+− TPA− ∼95°K. ratio I″ / I′ increased with concentration TPA, decreased ir bleaching so...
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