Role of Spin States of Polymethine Dyes in the Generation of Electron-Hole Pairs

Niyazbek Kh. Ibrayev, D. A. Afanasyev, Aleksandr A. Ishchenko, Н. А. Давиденко

2014

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DOI 10.1080/15421406.2013.872442
Data confidence 70 medium
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Abstract

The spectral and luminescent properties of film composites based on photoconductive poly-N-epoxypropylcarbazole (PEPC) and electrically neutral polyvinylbutyral (PVB) with admixtures of polymethine dyes with various ionicities are studied. The external magnetic field effect on the spectral and luminescent properties of film composites based on PEPC with cationic polymethine and merocyanine dyes is studied. The magnetic field effect in the photogeneration of electron-hole pairs is explained by the participation of the singlet–triplet intersystem crossing of excited dye molecules.