Surpassing 10% Efficiency Benchmark for Nonfullerene Organic Solar Cells by Scalable Coating in Air from Single Nonhalogenated Solvent

Ye, Long; Xiong, Yuan; Zhang, Qianqian; Li, Sunsun; Wang, Cheng; Jiang, Zhang; Hou, Jianhui; You, Wei; Ade, Harald

doi:10.1002/adma.201705485

Title: Surpassing 10% Efficiency Benchmark for Nonfullerene Organic Solar Cells by Scalable Coating in Air from Single Nonhalogenated Solvent

Journal Article · Wed Jan 10 00:00:00 EST 2018 · Advanced Materials

DOI:https://doi.org/10.1002/adma.201705485· OSTI ID:1426232

^[1]; Xiong, Yuan ^[1]; Zhang, Qianqian ^[2]; Li, Sunsun ^[3]; Wang, Cheng ^[4]; Jiang, Zhang ^[5]; Hou, Jianhui ^[3]; You, Wei ^[2]; Ade, Harald ^[1]

North Carolina State Univ., Raleigh, NC (United States)
Univ. of North Carolina, Chapel Hill, NC (United States)
Chinese Academy of Sciences (CAS), Beijing (China)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)

Abstract The commercialization of nonfullerene organic solar cells (OSCs) critically relies on the response under typical operating conditions (for instance, temperature and humidity) and the ability of scale‐up. Despite the rapid increase in power conversion efficiency (PCE) of spin‐coated devices fabricated in a protective atmosphere, the efficiencies of printed nonfullerene OSC devices by blade coating are still lower than 6%. This slow progress significantly limits the practical printing of high‐performance nonfullerene OSCs. Here, a new and relatively stable nonfullerene combination is introduced by pairing the nonfluorinated acceptor IT‐M with the polymeric donor FTAZ. Over 12% efficiency can be achieved in spin‐coated FTAZ:IT‐M devices using a single halogen‐free solvent. More importantly, chlorine‐free, blade coating of FTAZ:IT‐M in air is able to yield a PCE of nearly 11% despite a humidity of ≈50%. X‐ray scattering results reveal that large π–π coherence length, high degree of face‐on orientation with respect to the substrate, and small domain spacing of ≈20 nm are closely correlated with such high device performance. The material system and approach yield the highest reported performance for nonfullerene OSC devices by a coating technique approximating scalable fabrication methods and hold great promise for the development of low‐cost, low‐toxicity, and high‐efficiency OSCs by high‐throughput production.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: National Science Foundation (NSF); Chinese Academy of Sciences (CAS); National Natural Science Foundation of China (NSFC); US Department of the Navy, Office of Naval Research (ONR); USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-06CH11357; DE‐AC02‐05CH11231; DE‐AC02‐06CH11357

OSTI ID:: 1426232

Alternate ID(s):: OSTI ID: 1416603

Journal Information:: Advanced Materials, Vol. 30, Issue 8; ISSN 0935-9648

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 141 works

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Enhanced Performance of Inverted Non-Fullerene Organic Solar Cells by Using Metal Oxide Electron- and Hole-Selective Layers with Process Temperature ≤150 °C You, Hailong; Dai, Lin; Zhang, Qianni Polymers, Vol. 10, Issue 7 https://doi.org/10.3390/polym10070725	journal	July 2018
Effective Exciton Dissociation and Reduced Charge Recombination in Thick‐Film Organic Solar Cells via Incorporation of Insulating Polypropylene Wang, Tong; Yang, Xiao-Yu; Bi, Peng-Qing Solar RRL, Vol. 3, Issue 8 https://doi.org/10.1002/solr.201900087	journal	May 2019
In Situ Structure Characterization in Slot‐Die‐Printed All‐Polymer Solar Cells with Efficiency Over 9% Zhong, Wenkai; Hu, Qin; Jiang, Yufeng Solar RRL, Vol. 3, Issue 7 https://doi.org/10.1002/solr.201970073	journal	May 2019
Interfacial width and phase equilibrium in polymer-fullerene thin-films Hynes, E. L.; Cabral, J. T.; Parnell, A. J. Communications Physics, Vol. 2, Issue 1 https://doi.org/10.1038/s42005-019-0211-z	journal	September 2019
The crucial role of end group planarity for fused-ring electron acceptors in organic solar cells F., Gao,; L., Ye,; D., Dirkes, The University of North Carolina at Chapel Hill University Libraries https://doi.org/10.17615/6vb6-9k95	text	January 2019
Sequential Deposition of Organic Films with Eco-Compatible Solvents Improves Performance and Enables Over 12%-Efficiency Nonfullerene Solar Cells B. T., OConnor,; R., Henry,; W., You, The University of North Carolina at Chapel Hill University Libraries https://doi.org/10.17615/fzfw-f381	text	January 2019
Highly Efficient, Stable, and Ductile Ternary Nonfullerene Organic Solar Cells from a Two-Donor Polymer Blend M., Ghasemi,; H., Ade,; B. T., OConnor, The University of North Carolina at Chapel Hill University Libraries https://doi.org/10.17615/q6jt-ww33	text	January 2019
Revealing the Impact of F4-TCNQ as Additive on Morphology and Performance of High-Efficiency Nonfullerene Organic Solar Cells J. J., Rech,; W., You,; Q., Zhang, The University of North Carolina at Chapel Hill University Libraries https://doi.org/10.17615/tghg-rb29	text	January 2019
Effective Exciton Dissociation and Reduced Charge Recombination in Thick‐Film Organic Solar Cells via Incorporation of Insulating Polypropylene Wang, Tong; Yang, Xiao-Yu; Bi, Peng-Qing Solar RRL, Vol. 3, Issue 8 https://doi.org/10.1002/solr.201970081	journal	May 2019

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14 SOLAR ENERGY
blade-coating
film morphology
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organic solar cells