Abstract
Controlling the photoactive layer morphology towards nanoscale bi-continuous donor/acceptor interpenetrating networks is a key issue to build high-performance organic solar cells (OSCs). Due to the distinct properties between donor and acceptor materials, casting an active layer from a single solvent solution usually results in either insufficient or excessive phase separation that reduces the device performance. In comparison to the fullerene acceptors with closed-cage structures, the currently dominant non-fullerene acceptors possess the similar anisotropic π-π interactions with p-type organic semiconductor donors, giving rise to the complexity of the morphology regulation. Herein, we employ 4,4′-dimethoxyoctafluorobiphenyl (OFP) with strong crystallinity as a volatile solid additive to optimize the active layer morphology of OSCs. The synergistic effect of 1-chloronaphthalene (CN) and OFP as dual additives shows supreme capability on optimizing the morphology over the conventional additive of CN, which is in favor of improving charge transport and suppressing charge recombination for higher fill factors in various systems. In particular, the PTQ10:m-BTP-C6Ph-based device processed by the additive showed a remarkable power-conversion efficiency (PCE) of 17.74%, whereas the control device processed by CN additive yielded a relatively lower PCE of 16.45%.
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Li Y, Xu G, Cui C, Li Y. Adv Energy Mater, 2018, 8: 1701791
Krebs FC, Espinosa N, Hösel M, Søndergaard RR, Jørgensen M. Adv Mater, 2014, 26: 29–39
Li G, Zhu R, Yang Y. Nat Photon, 2012, 6: 153–161
Servaites JD, Ratner MA, Marks TJ. Energy Environ Sci, 2011, 4: 4410
Facchetti A. Mater Today, 2013, 16: 123–132
Wei Q, Liu W, Leclerc M, Yuan J, Chen H, Zou Y. Sci China Chem, 2020, 63: 1352–1366
Cui C, Li Y. Energy Environ Sci, 2019, 12: 3225–3246
Li Y. Acc Chem Res, 2012, 45: 723–733
Yan C, Barlow S, Wang Z, Yan H, Jen AKY, Marder SR, Zhan X. Nat Rev Mater, 2018, 3: 18003
Lee C, Lee S, Kim GU, Lee W, Kim BJ. Chem Rev, 2019, 119: 8028–8086
Cai Y, Huo L, Sun Y. Adv Mater, 2017, 29: 1605437
Yao H, Wang J, Xu Y, Zhang S, Hou J. Acc Chem Res, 2020, 53: 822–832
Chen Y, Wan X, Long G. Acc Chem Res, 2013, 46: 2645–2655
Yu G, Gao J, Hummelen JC, Wudl F, Heeger AJ. Science, 1995, 270: 1789–1791
Heeger AJ. Adv Mater, 2013, 26: 10–28
Lin Y, Wang J, Zhang ZG, Bai H, Li Y, Zhu D, Zhan X. Adv Mater, 2015, 27: 1170–1174
Zhao W, Li S, Yao H, Zhang S, Zhang Y, Yang B, Hou J. J Am Chem Soc, 2017, 139: 7148–7151
Yuan J, Zhang Y, Zhou L, Zhang G, Yip HL, Lau TK, Lu X, Zhu C, Peng H, Johnson PA, Leclerc M, Cao Y, Ulanski J, Li Y, Zou Y. Joule, 2019, 3: 1140–1151
Wu Q, Wang W, Wang T, Sun R, Guo J, Wu Y, Jiao X, Brabec CJ, Li Y, Min J. Sci China Chem, 2020, 63: 1449–1460
Fan B, Zhang D, Li M, Zhong W, Zeng Z, Ying L, Huang F, Cao Y. Sci China Chem, 2019, 62: 746–752
Ma R, Liu T, Luo Z, Guo Q, Xiao Y, Chen Y, Li X, Luo S, Lu X, Zhang M, Li Y, Yan H. Sci China Chem, 2020, 63: 325–330
Cui C, Li Y. Aggregate, 2021, 2: e31
Zhao F, Wang C, Zhan X. Adv Energy Mater, 2018, 8: 1703147
Liao HC, Ho CC, Chang CY, Jao MH, Darling SB, Su WF. Mater Today, 2013, 16: 326–336
McDowell C, Abdelsamie M, Toney MF, Bazan GC. Adv Mater, 2018, 30: 1707114
Lee JK, Ma WL, Brabec CJ, Yuen J, Moon JS, Kim JY, Lee K, Bazan GC, Heeger AJ. J Am Chem Soc, 2008, 130: 3619–3623
Brady MA, Su GM, Chabinyc ML. Soft Matter, 2011, 7: 11065–11077
Peet J, Kim JY, Coates NE, Ma WL, Moses D, Heeger AJ, Bazan GC. Nat Mater, 2007, 6: 497–500
Yao Y, Hou J, Xu Z, Li G, Yang Y. Adv Funct Mater, 2008, 18: 1783–1789
Brinkmann M, Wittmann JC. Adv Mater, 2006, 18: 860–863
Müller C, Aghamohammadi M, Himmelberger S, Sonar P, Garriga M, Salleo A, Campoy-Quiles M. Adv Funct Mater, 2013, 23: 2368–2377
Kim JY, Yang DS, Shin J, Bilby D, Chung K, Um HA, Chun J, Pyo S, Cho MJ, Kim J, Choi DH. ACS Appl Mater Interfaces, 2015, 7: 13431–13439
Dörling B, Vohra V, Dao TT, Garriga M, Murata H, Campoy-Quiles M. J Mater Chem C, 2014, 2: 3303–3310
Vohra V, Dörling B, Higashimine K, Murata H. Appl Phys Express, 2015, 9: 012301
Fahey DP, Dougherty William G. J, Kassel WS, Wang X, Beckmann PA. J Phys Chem A, 2012, 116: 11946–11956
Beckmann PA, Mallory CW, Mallory FB, Rheingold AL, Wang X. ChemPhysChem, 2015, 16: 1509–1519
Chai G, Chang Y, Zhang J, Xu X, Yu L, Zou X, Li X, Chen Y, Luo S, Liu B, Bai F, Luo Z, Yu H, Liang J, Liu T, Wong KS, Zhou H, Peng Q, Yan H. Energy Environ Sci, 2021, 14: 3469–3479
Vandewal K, Widmer J, Heumueller T, Brabec CJ, McGehee MD, Leo K, Riede M, Salleo A. Adv Mater, 2014, 26: 3839–3843
Credgington D, Durrant JR. J Phys Chem Lett, 2012, 3: 1465–1478
Wu Y, Zheng Y, Yang H, Sun C, Dong Y, Cui C, Yan H, Li Y. Sci China Chem, 2020, 63: 265–271
Mihailetchi VD, Koster LJA, Hummelen JC, Blom PWM. Phys Rev Lett, 2004, 93: 216601
Schilinsky P, Waldauf C, Brabec CJ. Appl Phys Lett, 2002, 81: 3885–3887
Koster LJA, Mihailetchi VD, Ramaker R, Blom PWM. Appl Phys Lett, 2005, 86: 123509
Owens DK, Wendt RC. J Appl Polym Sci, 1969, 13: 1741–1747
Nilsson S, Bernasik A, Budkowski A, Moons E. Macromolecules, 2007, 40: 8291–8301
Bergqvist J, Lindqvist C, Bäcke O, Ma Z, Tang Z, Tress W, Gustafsson S, Wang E, Olsson E, Andersson MR, Inganäs O, Müller C. J Mater Chem A, 2014, 2: 6146–6152
Han J, Bao F, Huang D, Wang X, Yang C, Yang R, Jian X, Wang J, Bao X, Chu J. Adv Funct Mater, 2020, 30: 2003654
Acknowledgements
This work is supported by the National Natural Science Foundation of China (22022509, 51873140 and 51820105003), Jiangsu Provincial Natural Science Foundation (BK20190095), Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), and Collaborative Innovation Center of Suzhou Nano Science and Technology.
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Fan, C., Yang, H., Zhang, Q. et al. Synergistic effect of solvent and solid additives on morphology optimization for high-performance organic solar cells. Sci. China Chem. 64, 2017–2024 (2021). https://doi.org/10.1007/s11426-021-1114-3
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DOI: https://doi.org/10.1007/s11426-021-1114-3