Ultraweak spectrally resolved thermoluminescence in polymers |
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Authors: | Ewa Mandowska Arkadiusz Mandowski Józef ?wi?tek |
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Institution: | Institute of Physics, Pedagogical University, ul. Armii Krajowej 13/15, 42-200 Cz?stochowa, Poland |
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Abstract: | Spectrally resolved thermoluminescence (TL) measurements provide a lot of information concerning trapping and recombination states in various dielectric materials. As long-lived luminescence is typically weak, this technique requires a very sensitive apparatus. This paper describes the measurement system that is used for studying spectrally resolved TL and phosphorescence decay in polymers. Exemplary investigations are presented for poly(N-vinylcarbazole) (PVK) thin films. The obtained spectra clearly indicate the influence of solvents (dioxane, chlorobenzene) and excitation wavelengths on TL in PVK samples. |
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Keywords: | luminescence phosphorescence spectrally resolved thermoluminescence (TL) poly(N-vinylcarbazole) (PVK) thin films |
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