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Double spin-coated electroluminescent (EL) devices have been prepared by combining a blue EL arylamine-based hole transport polymer (STPD-QP) in the first spin-coated layer with a blue EL oxadiazole-based electron transport polymer (SP-OX) in the second layer. The luminance and efficiency of these devices are improved by adding PBD, a low molecular weight electron transport oxadiazole derivative,...
Thin solid films of C 60 and C 70 have been found to be sensitive to UV-visible light. In the absence of oxygen, which acts as a triplet state quencher, C 60 and C 70 have been observed to phototransform from a toluene-soluble to a toluene-insoluble state. This phototransformation has been studied via Raman and FTIR spectroscopies, UV-visible transmission...
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