Journal
MATERIALS HORIZONS
Volume 2, Issue 6, Pages 592-597Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5mh00076a
Keywords
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Funding
- National Natural Science Foundation of China [91333206, 51403066, 51225301, 61177022, 5141101251]
- Fundamental Research Funds for the Central Universities [2014ZM001]
- Innovation Program of Guangdong Province Universities and Colleges [2012KJCX0009]
- Polymer-Based Materials for Harvesting Solar Energy (PHaSE), an Energy Frontier Research Centre - US Department of Energy, Office of Basic Energy Sciences [DE-SC0001087]
- DOE, Office of Science, and Office of Basic Energy Sciences
- US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-76SF00515]
- Division of Scientific User Facilities, Office of Basic Energy Sciences, US Department of Energy
- Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy
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We developed a simultaneous spin-coating/solvent-annealing process and demonstrated morphology optimization for PTB7 based organic photovoltaics. This novel processing method enhances the edge-on crystalline content in thin films and induces the formation of weak PCBM aggregates. As a result, the efficiency of polymer solar cells increased from 9.2% to a certified high efficiency of 9.61%, owing to an enhanced short-circuit current (J(sc), 18.4 mA cm(-2) vs. 17. 5 mA cm(-2)) and an improved fill factor.
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