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Identification and separation of spectral change due to temperature increase in nanosecond transient absorption spectra of polydiacetylene thin films

K. Ichimura - No affiliation found

1993/01/01 Full-length article DOI: 10.1016/0009-2614(93)85351-N Journal: Chemical Physics Letters

Abstract:

AbstractTime dependence of a photoinduced absorbance change in a thin film of polydiacetylene PDA-3BCMU (poly-4,6-decadiyne-1, 10-diol-bis(n-butoxycarbonyl-methylurethane)) was separated from the effect of increasing sample temperature by a newly designed method. The resultant nonthermal contribution relaxes via a geminate recombination process, probably due to polarons.