Compositional dependence of the open-circuit voltage in ternary blend bulk heterojunction solar cells based on two donor polymers

Journal of the American Chemical Society
Petr P KhlyabichBarry C Thompson

Abstract

Ternary blend bulk heterojunction (BHJ) solar cells containing as donor polymers two P3HT analogues, high-band-gap poly(3-hexylthiophene-co-3-(2-ethylhexyl)thiophene) (P3HT(75)-co-EHT(25)) and low-band-gap poly(3-hexylthiophene-thiophene-diketopyrrolopyrrole) (P3HTT-DPP-10%), with phenyl-C(61)-butyric acid methyl ester (PC(61)BM) as an acceptor were studied. When the ratio of the three components was varied, the open-circuit voltage (V(oc)) increased as the amount of P3HT(75)-co-EHT(25) increased. The dependence of V(oc) on the polymer composition for the ternary blend regime was linear when the overall polymer:fullerene ratio was optimized for each polymer:polymer ratio. Also, the short-circuit current densities (J(sc)) for the ternary blends were bettter than those of the binary blends because of complementary polymer absorption, as verified using external quantum efficiency measurements. High fill factors (FF) (>0.59) were achieved in all cases and are attributed to high charge-carrier mobilities in the ternary blends. As a result of the intermediate V(oc), increased J(sc) and high FF, the ternary blend BHJ solar cells showed power conversion efficiencies of up to 5.51%, exceeding those of the corresponding binary blends (3....Continue Reading

References

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Nov 18, 2010·Chemical Society Reviews·Christoph J BrabecJenny Nelson
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May 14, 2011·Macromolecular Rapid Communications·Svetlana van BavelJoachim Loos
Aug 23, 2011·Journal of the American Chemical Society·Petr P KhlyabichBarry C Thompson
Oct 18, 2011·Journal of the American Chemical Society·Pierre M Beaujuge, Jean M J Fréchet
Mar 8, 2012·Journal of the American Chemical Society·Liqiang YangWei You

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Citations

Apr 12, 2013·ACS Applied Materials & Interfaces·Hyunbum KangBumjoon J Kim
Jan 5, 2013·Journal of the American Chemical Society·Robert A StreetBarry C Thompson
Apr 17, 2014·ACS Applied Materials & Interfaces·Qiaoshi AnWeihua Tang
Jan 28, 2015·Journal of the American Chemical Society·Yonggang ZhenEiichi Nakamura
Jun 4, 2015·ACS Applied Materials & Interfaces·Yubin XiaoJianbin Xu
Aug 13, 2015·The Journal of Physical Chemistry Letters·Muhammad T SajjadIfor D W Samuel
Aug 8, 2015·Chemical Reviews·Luyao LuLuping Yu
Jun 17, 2015·Scientific Reports·Boyuan QiJizheng Wang
Oct 6, 2015·ACS Applied Materials & Interfaces·Weichao ChenRenqiang Yang
Jun 9, 2015·Journal of the American Chemical Society·Jianqi ZhangZhixiang Wei
Jun 18, 2016·Science·Martin SchwarzeKarl Leo
Jun 6, 2013·The Journal of Physical Chemistry Letters·Liqiang YangWei You
Sep 23, 2014·ACS Applied Materials & Interfaces·Hyung Do KimShinzaburo Ito
Jun 24, 2014·ACS Applied Materials & Interfaces·Petr P KhlyabichBarry C Thompson
Sep 28, 2016·The Journal of Physical Chemistry Letters·Wolfgang TressUrsula Rothlisberger
Sep 24, 2016·ACS Applied Materials & Interfaces·Nemal S GobalasinghamBarry C Thompson
Feb 28, 2017·ACS Nano·George KakavelakisFrancesco Bonaccorso
Sep 24, 2015·Physical Chemistry Chemical Physics : PCCP·Svante HedströmPetter Persson
Feb 19, 2016·Chemical Society Reviews·Pei Cheng, Xiaowei Zhan
Aug 10, 2018·Advanced Materials·Yuanpeng XieYanming Sun
Jan 24, 2018·Nature Materials·Jianhui HouFeng Gao
Jul 13, 2019·Macromolecular Rapid Communications·Changguo XueCunbin An

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