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Time-resolved emission spectra of the BIC J-aggregate at low temperature

✍ Scribed by Valey F. Kamalov; Irina A. Struganova; Keitaro Yoshihara

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
456 KB
Volume
213
Category
Article
ISSN
0009-2614

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✦ Synopsis

A red-shift and broadening of the emission of the BIC J-aggregate in glass were observed at low temperatures (4.5 K). To explain the observation a transformation of the excess excitation energy in the bath with disordering of the structure of molecular aggregate is proposed. The characteristic time of this energy transformation is 315 ps at 4.5 K for an excess energy of 400 cm-i. Another possible mechanism of exciton self-trapping by exciton-phonon interaction is discussed.

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