Study of the exciton relaxation and recombination processes of a heteromolecular interface fabricated by a molecular superlattice growth technique

Nobuya Hiroshiba, Kenta Morimoto, Ryoma Hayakawa, Toyohiro Chikyow, Yutaka Wakayama, Kiyoto Matsuishi

研究成果: Article査読

2 被引用数 (Scopus)

抄録

The temperature dependences of the photoluminescence (PL) spectra of N,N′-dioctyl-3,4,9,10-perylenedicarboximide (PTCDI-C8)/ Quaterrylene (QT) heteromolecular thin film and neat-PTCDI-C8 thin film were investigated to elucidate the effects of a heteromolecular interface on exciton relaxation and recombination processes. The PL spectra were deconvoluted into six components related to Frenkel, two charge-transfer (CT), and excimer exciton states. With the heteromolecular thin film, we found the behavior of the CT excitons to be intriguingly different in terms of luminous efficiency and temperature dependence from that of the Frenkel exciton. In this Letter, we provide detailed analyses of the exciton relaxation and recombination processes at a heteromolecular interface.

本文言語English
ページ(範囲)227-230
ページ数4
ジャーナルChemical Physics Letters
512
4-6
DOI
出版ステータスPublished - 2011 8 25

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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