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Volumn 18, Issue 20, 2006, Pages 2713-2719

Suppression of energy-transfer between conjugated polymers in a ternary blend identified using scanning near-field optical microscopy

Author keywords

[No Author keywords available]

Indexed keywords

ENERGY TRANSFER; MICROSCOPIC EXAMINATION; NEAR FIELD SCANNING OPTICAL MICROSCOPY; POLYMETHYL METHACRYLATES; RAMAN SPECTROSCOPY;

EID: 33750526439     PISSN: 09359648     EISSN: None     Source Type: Journal    
DOI: 10.1002/adma.200600114     Document Type: Article
Times cited : (20)

References (40)
  • 38
    • 33750517218 scopus 로고    scopus 로고
    • note
    • rad is the natural radiative decay lifetime. If we neglect possible electronic interactions between polymer molecules and thus assume that the intrinsic radiative lifetime of the molecule is unchanged by dilution (i.e., changes only occur to the nonradiative decay rate), then changes in the observed decay lifetime are directly proportional to changes in the fluorescence quantum efficiency. We find that the fluorescence decay lifetime of a pure film of F8BT is 1.1 ns, which increases by ca. 60 % to 1.8 ns when it is diluted into a PMMA thin film (at a concentration of 2 % by mass). The decay lifetime of F8 is ca. 320 ps in a pure thin film, which increases by around 6 % to 340 ps when diluted (also at 2 % by mass) into PMMA. This suggests that the fluorescence quantum efficiency of F8BT increases strongly when diluted into PMMA, however the F8 quantum efficiency is much less sensitive to PMMA dilution.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.