A "zig-zag" naphthodithiophene core for increased efficiency in solution-processed small molecule solar cells |
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| Authors: | Stephen Loser Hiroyuki Miyauchi Jonathan W Hennek Jeremy Smith Chun Huang Antonio Facchetti Tobin J Marks |
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| Affiliation: | Department of Chemistry and the Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA. t-marks@northwestern.edu. |
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| Abstract: | A solution-processed small molecule utilizing a novel 4,9-bis(2-ethylhexyloxy)naphtho[1,2-b:5,6-b']dithiophene "zig-zag" core (zNDT) exhibits high hole mobility, upshifted frontier MO energies, and enhanced photovoltaic cell short-circuit currents, fill-factors, and power conversion efficiencies (4.7%) versus the linear NDT isomer. |
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