@article{0e4f11cf3cb3424d9840c2ccc7cdc015,
title = "Novel unsymmetrical squaraine-based small molecules for organic solar cells",
abstract = "A new unsymmetrical squaraine dye (USQ) series for organic solar cells (OSC) is synthesized by a simple route without using highly toxic reagents. These USQs exhibit a low bandgap of 1.57 eV and HOMO energies of ∼-5.2-5.3 eV. Despite the very simple molecular structures, OSC devices based on these USQs exhibit an impressive open-circuit voltage of 0.92 V and power conversion efficiencies (PCEs) approaching 5%, achieved without using any additives or post film deposition treatment. The results indicate that USQs are promising materials for sustainable energy applications.",
author = "Yao Chen and Gang Wang and Lin Yang and Jianglin Wu and Melkonyan, {Ferdinand S.} and Yan Huang and Zhiyun Lu and Marks, {Tobin J.} and Antonio Facchetti",
note = "Funding Information: We acknowledge the financial support for this work from the National Natural Science Foundation of China (projects No. 51573108, 21432005 and 21372168). We also would like to thank Dr Peng Wu of Analytical & Testing Center, Sichuan University, for his help in photophysical measurements. T. J. M. and G. W. (materials characterization) acknowledge financial support from the Argonne-Northwestern Solar Energy Research (ANSER) Center, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001059. This work made use of the SPID facility of the NUANCE Center at Northwestern U., which received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF NNCI-1542205); the MRSEC program (NSF DMR-1121262) at the Materials Research Center; the International Institute for Nanotechnology (IIN); the Keck Foundation; and the State of Illinois, through the IIN. Y. C. thank the joint-PhD program supported by China Scholarship Council for fellowships.",
year = "2018",
doi = "10.1039/c7tc04639a",
language = "English",
volume = "6",
pages = "847--854",
journal = "Journal of Materials Chemistry C",
issn = "2050-7526",
publisher = "Royal Society of Chemistry",
number = "4",
}