한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Relationship between Exciton Lifetime and Energy Transfer in Light Emitting Polymers

  • Yu, Jae-Woong (Polymer Materials Laboratory, Korea Institute of Science and Technology) ;
  • Kim, Jai-Kyeong (Polymer Materials Laboratory, Korea Institute of Science and Technology) ;
  • Cho, Hyun-Nam (Polymer Materials Laboratory, Korea Institute of Science and Technology) ;
  • Kim, Dong-Young (Polymer Materials Laboratory, Korea Institute of Science and Technology) ;
  • Song, Nam-Woong (National Creative Research Initiative Center for Ultrafast Optical Properties Chracterization and Spectroscopy Laboratory, Korea Research Institute of Standards and Science) ;
  • Kim, Dong-Ho (National Creative Research Initiative Center for Ultrafast Optical Properties Chracterization and Spectroscopy Laboratory, Korea Research Institute of Standards and Science) ;
  • Kim, Chung-Yup (Polymer Materials Laboratory, Korea Institute of Science and Technology)
  • Published : 2000.01.13
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Abstract

The energy transfer from photoexcited polyvinylcarbazole (PVK) chromophores with a bandgap of 3.7 eV as a donor to fluorophores of poly(dihexylfluorenevinylene) (PDHFV) or poly(dihexylfluorenedihexoxyphenylenevinylene) (PDHFHPV) as an acceptor in bilayered specimens should be carried out since the spectral overlap pairs fulfills the requirement for the $F{\"{o}}rster-type$ condition. However, the energy transfer rate from the chromophores with a wider bandgap to the fluorophores with a narrower bandgap is proved to be strongly dependent on the lifetime ratio between the excitons.

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