Fluorine이 도입된 Quinoxaline과 Fluorene 골격을 가진 고분자의 합성 및 특성분석

송수희; 최효일; 신인수; 박성수; 이근대; 박성흠; 진영읍; Suhee Song; Hyo Il Choi; In Soo Shin; Seong Soo Park; Gun Dae Lee; Sung Heum Park; Youngeup Jin

Applied Chemistry for Engineering, Vol.27, No.5, 467-471, October, 2016

DOI10.14478/ace.2016.1052 Export Citation

Fluorine이 도입된 Quinoxaline과 Fluorene 골격을 가진 고분자의 합성 및 특성분석

Synthesis and Photovoltaic Properties of Copolymers with Fluorinated Quinoxaline and Fluorene Moiety

송수희, 최효일¹, 신인수, 박성수 ¹, 이근대 ¹, 박성흠, 진영읍^{1, †}

부경대학교 물리학과
¹부경대학교 공업화학과

Suhee Song, Hyo Il Choi¹, In Soo Shin, Seong Soo Park¹, Gun Dae Lee¹, Sung Heum Park, and Youngeup Jin^{1, †}

Department of Physics, Pukyong National University, Busan 48513 Korea
¹Department of Industrial Chemistry, Pukyong National University, Busan 48513, Korea

E-mail:

초록

새로운 전자 받개인 6,7-difluoro-2,3-dihexylquinoxaline을 이용하여 유기 태양 전지형 고분자를 개발하였다. Fluorene과 6,7-difluoro-2,3-dihexylquinoxaline으로 Suzuki polymerization방법을 이용하여 낮은 HOMO 에너지를 가지는 PFDTQxF 고분자를 합성하였다. 필름상태의 PFDTQxF은 368과 493 nm에서 두 개의 흡광도를 보였다. PFDTQxF의 HOMO와 LUMO 에너지는 각각 -5.55와 -3.91 eV을 나타내었다. PFDTQxF의 태양전지 소자는 0.47 V의 VOC와 4.48 mA/cm2의 JSC와 0.32의 FF를 가지고 있어 0.78%의 에너지 효율을 나타내었다.

New electron deficient moiety, 6,7-difluoro-2,3-dihexylquinoxaline, was developed for the push-pull type copolymer for organic photovoltaics (OPVs). The PFDTQxF with lower HOMO energy level was synthesized using fluorene and 6,7-difluoro-2,3-dihexylquinoxaline by Suzuki polymerization. The PFDTQxF thin film shows two absorption peaks at 368 and 493 nm. The HOMO and LUMO energy levels of PFDTQxF are calculated -5.55 and -3.91 eV, respectively. The device comprising PFDTQxF showed a VOC value of 0.47 V, a JSC value of 4.48 mA/cm2, and a FF of 0.32, which yielded PCE of 0.78%, under the illumination of AM 1.5.

Keywords:polymer;quinoxaline;fluorene;fluorine atom;solar cells

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[3] Kreb FC, Nielsen TD, Fyenbo J, Wadstrom M, Pedersen MS, Energy Environ. Sci., 3, 512 (2010)

[4] Kim JY, Lee K, Coates NE, Moses D, Nguyen TQ, Dante M, Heeger AH, Science, 317, 222 (2007)

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[17] Lee W, Cha H, Kim YJ, Jeong JE, Hwang S, Park CE, Woo HY, ACS Appl. Mater. Interfaces, 6, 20510 (2014)

[18] Cao KC, Wu ZW, Li SG, Sun BQ, Zhang GB, Zhang Q, J. Polym. Sci. A: Polym. Chem., 51(1), 94 (2013)

[19] Cho S, Seo JH, Kim SH, Song S, Jin Y, Lee K, Suh H, Heeger AJ, Appl. Phys. Lett., 93, 263301 (2008)

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