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• W2008712309 endingPage "6345" @default.
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• W2008712309 abstract "A series of copolymers, poly[(9,9-dioctylfluorene-2,7-diyl)-co-(4-dicyanomethylene-2-methyl-6-[4-(diphenylamino)styryl]-4H-pyran-4‘,4‘ ‘-diyl)], were synthesized by polymerizing 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dioctylfluorene with mixtures of 2,7-dibromo-9,9-dioctylfluorene and 4-dicyanomethylene-2-methyl-6-[bis(4‘-bromophenyl)amino]styryl]-4H-pyran (a DCM derivative) by the palladium-catalyzed Suzuki coupling reaction. The copolymers were characterized by molecular weight determination, elemental analysis, 1H NMR, FT-IR spectroscopy, DSC, TGA, UV−vis spectroscopy, and photoluminescence (PL) and electroluminescence (EL) spectroscopy. The copolymers showed two absorption peaks at 380 and 485 nm, and the long-wavelength absorption increased with increasing the fraction of the DCM comonomer. The PL spectra of copolymers in chloroform solution displayed emission from both the main chain (420 nm) and DCM units (620 nm). In the solid state, however, PL spectra of copolymers showed only the long wavelength red emission at 620 nm with no trace of emission from the main chain, which implies a facile exciton migration or energy transfer to the lower energy sites from the fluorene part to the DCM part. This results in emission of only the red light originating from the latter segments. A study on time-resolved PL rise and decay of the polymers clearly supports the energy transfer mechanism. Light-emitting diode (LED) devices were fabricated to have the configuration of ITO (indium−tin oxide)/PEDOT/polymer/Li:Al alloy. EL spectra of the devices showed only red emissions as observed in the PL spectra of the polymers' thin films. EL efficiency decreased with increasing DCM contents. When a tris(8-hydroxyquinolinato)aluminum (Alq3) layer was inserted between the emitting polymer layer and the cathode to make the ITO/PEDOT/polymer/Alq3/Li:Al alloy configuration, the device efficiencies became much higher (∼10-2%) than those (5 × 10-5−5 × 10-3%) of single-layer devices." @default.
• W2008712309 created "2016-06-24" @default.
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• W2008712309 date "2005-07-01" @default.
• W2008712309 modified "2023-10-16" @default.
• W2008712309 title "Synthesis and Luminescent Properties of Fluorene Copolymers Bearing DCM Pendants" @default.
• W2008712309 cites W1564960217 @default.
• W2008712309 cites W1657433554 @default.
• W2008712309 cites W1964603841 @default.
• W2008712309 cites W1965493566 @default.
• W2008712309 cites W1968259945 @default.
• W2008712309 cites W1969144422 @default.
• W2008712309 cites W1970472001 @default.
• W2008712309 cites W1977488080 @default.
• W2008712309 cites W1978783709 @default.
• W2008712309 cites W1978890358 @default.
• W2008712309 cites W1979579775 @default.
• W2008712309 cites W1984432044 @default.
• W2008712309 cites W1986966508 @default.
• W2008712309 cites W1987533473 @default.
• W2008712309 cites W1989989231 @default.
• W2008712309 cites W1990548643 @default.
• W2008712309 cites W1990599451 @default.
• W2008712309 cites W1991257041 @default.
• W2008712309 cites W1992088057 @default.
• W2008712309 cites W1992139458 @default.
• W2008712309 cites W1994015817 @default.
• W2008712309 cites W1995707507 @default.
• W2008712309 cites W2002075849 @default.
• W2008712309 cites W2004610267 @default.
• W2008712309 cites W2007449668 @default.
• W2008712309 cites W2008242641 @default.
• W2008712309 cites W2014580921 @default.
• W2008712309 cites W2015357699 @default.
• W2008712309 cites W2017544542 @default.
• W2008712309 cites W2027492051 @default.
• W2008712309 cites W2027747387 @default.
• W2008712309 cites W2028389945 @default.
• W2008712309 cites W2028647088 @default.
• W2008712309 cites W2028820205 @default.
• W2008712309 cites W2030099439 @default.
• W2008712309 cites W2030390562 @default.
• W2008712309 cites W2032288584 @default.
• W2008712309 cites W2032406309 @default.
• W2008712309 cites W2034463098 @default.
• W2008712309 cites W2038541132 @default.
• W2008712309 cites W2049342023 @default.
• W2008712309 cites W2049408035 @default.
• W2008712309 cites W2053323976 @default.
• W2008712309 cites W2053841659 @default.
• W2008712309 cites W2057731465 @default.
• W2008712309 cites W2058939146 @default.
• W2008712309 cites W2059074105 @default.
• W2008712309 cites W2059549875 @default.
• W2008712309 cites W2061352573 @default.
• W2008712309 cites W2064325362 @default.
• W2008712309 cites W2070442147 @default.
• W2008712309 cites W2072525309 @default.
• W2008712309 cites W2072699397 @default.
• W2008712309 cites W2075853838 @default.
• W2008712309 cites W2082917610 @default.
• W2008712309 cites W2083499855 @default.
• W2008712309 cites W2084990248 @default.
• W2008712309 cites W2088776569 @default.
• W2008712309 cites W2090177507 @default.
• W2008712309 cites W2092874437 @default.
• W2008712309 cites W2093074552 @default.
• W2008712309 cites W2094695040 @default.
• W2008712309 cites W2095216567 @default.
• W2008712309 cites W2097536229 @default.
• W2008712309 cites W2125928072 @default.
• W2008712309 cites W2140876481 @default.
• W2008712309 cites W2170888977 @default.
• W2008712309 cites W2171559455 @default.
• W2008712309 cites W2317727724 @default.
• W2008712309 cites W3023854223 @default.
• W2008712309 doi "https://doi.org/10.1021/ma047947w" @default.
• W2008712309 hasPublicationYear "2005" @default.
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