화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터)
권호 39권 1호
발표분야 분자전자 부문위원회
제목 Synthesis and Characterization of Alternating Copolymers Including Quinoxaline with Fluoro Group in Orgarnic Photovoltaic Cells
초록 A series of novel 5,8-dibromo-6,7-difluoro-2,3-dihexylquinoxaline(DFQx) based alternating copolymers were synthesized using a direct arylation, Stille or Suzuki polymerization reaction. These polymers were made from bis(trimethyltin)-4,8-bis(2-octyloxy)benzo[1,2-b:3,4-b']dithiophene, 4,4-bis(2-ethylhexyl)-4H-cyclopenta[1,2-b:5,4-b']dithiophene, 4,4-dioctyl-4H-silolo[3,2-b:4,5-b']dithiophene, 2,7-dibromo-9,9-bis(2-ethylhexyl)-9H-fluorene or 2,7-dibromo-9-(heptadecan-9-yl)-9H-carbazole as an donor. A highest occupied molecular orbital (HOMO) energy level was exhibited in the range of -5.24 eV ~ -5.80 eV. All the polymers show narrow band gaps below 2.2eV. Thermogravimetry Analysis(TGA) of polymerizations were measured to be 410℃, 350℃, 316℃, 313℃ and 386℃. The thin film based on copolymers including cyclopentadithiophene derivative was able harvest a broad solar spectrum covering the range from 350 to 700 nm.
저자 강영권, 김원준, 진영읍
소속 부경대
키워드 Orgarnic Photovoltaic Cells; Quinoxaline
E-Mail yjin@pknu.ac.kr