PHOTO-INDUCED ABSORPTION IN POLYDIACETYLENE SINGLE CRYSTAL | Zendy

PENG JING-CUI | Zendy

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PHOTO-INDUCED ABSORPTION IN POLYDIACETYLENE SINGLE CRYSTAL

Author(s) -

PENG JING-CUI

Publication year - 1991

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.40.1980

Subject(s) - exciton , absorption (acoustics) , materials science , excitation , single crystal , crystal (programming language) , absorption spectroscopy , molecular physics , photochemistry , optics , crystallography , chemistry , condensed matter physics , physics , quantum mechanics , computer science , programming language , composite material

Photo-induced absorption in poly (bis (p-toluene sulphonate) ester of 2,4-hexadiyne-1, 6-diol) (PDA-TS) single crystal is studied theoretically. A mechanism of photo-induced absor-ption is proposed as exciton excitation. The binding energies for single and triple excitons are calculated and the photo-induced absorption peak at 1.35eV is considered as resulting from the transition 3Ag→3Bu. This agrees with experimental data.

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