Comparison of transient state and steady state exciton-exciton annihilation rates based on Förster-type energy transfer

Toshiya Yonehara, Kenichi Goshi, Tomoaki Sawabe, Isao Takasu, Chihaya Adachi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We investigated differences between the transient state and steady state exciton-exciton annihilation rates based on Förster-type energy transfer. The exciton-exciton annihilation rate of an organic semiconductor is usually determined by transient state photoluminescence measurements using a pulsed laser or steady state photoluminescence measurements using a continuous wave laser. However, it is unclear that the respective annihilation rates determined by their rate equations are the same. In calculations with platinum-octaethylporphyrin (PtOEP) parameters, Monte Carlo simulations gave two different annihilation rates for the transient state and the steady state. The analytical models based on Förster-type energy transfer also showed the same result. These results indicate that the exciton-exciton annihilation rates in transient state and steady state are distinguished.

Original languageEnglish
Article number071601
JournalJapanese Journal of Applied Physics
Volume54
Issue number7
DOIs
Publication statusPublished - Jul 1 2015

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Excitons
Energy transfer
energy transfer
excitons
Photoluminescence
photoluminescence
Semiconducting organic compounds
Continuous wave lasers
continuous wave lasers
organic semiconductors
Pulsed lasers
Platinum
Analytical models
pulsed lasers
platinum
simulation

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Comparison of transient state and steady state exciton-exciton annihilation rates based on Förster-type energy transfer. / Yonehara, Toshiya; Goshi, Kenichi; Sawabe, Tomoaki; Takasu, Isao; Adachi, Chihaya.

In: Japanese Journal of Applied Physics, Vol. 54, No. 7, 071601, 01.07.2015.

Research output: Contribution to journalArticle

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