Tuning the Morphology of Solution-Sheared P3HT:PCBM Films

ACS Applied Materials & Interfaces
Julia Antonia ReinspachZhenan Bao

Abstract

Organic bulk heterojunction (BHJ) solar cells are a promising alternative for future clean-energy applications. However, to become attractive for consumer applications, such as wearable, flexible, or semitransparent power-generating electronics, they need to be manufactured by high-throughput, low-cost, large-area-capable printing techniques. However, most research reported on BHJ solar cells is conducted using spin coating, a single batch fabrication method, thus limiting the reported results to the research lab. In this work, we investigate the morphology of solution-sheared films for BHJ solar cell applications, using the widely studied model blend P3HT:PCBM. Solution shearing is a coating technique that is upscalable to industrial manufacturing processes and has demonstrated to yield record performance organic field-effect transistors. Using grazing incident small-angle X-ray scattering, grazing incident wide-angle X-ray scattering, and UV-vis spectroscopy, we investigate the influence of solvent, film drying time, and substrate temperature on P3HT aggregation, conjugation length, crystallite orientation, and PCBM domain size. One important finding of this study is that, in contrast to spin-coated films, the P3HT molecular ...Continue Reading

References

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May 14, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Maël Le BerreDamien Baigl
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Citations

Aug 3, 2016·ACS Applied Materials & Interfaces·Saunak DasMartin Presselt
Aug 27, 2016·ACS Applied Materials & Interfaces·Gang WangElsa Reichmanis
Jan 4, 2018·Journal of Computational Chemistry·Torsten SachseMartin Presselt
Jul 4, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Ahmet ŞenocakMahmut Durmuş
Feb 9, 2018·Nature Communications·Xiaodan GuZhenan Bao
Apr 2, 2019·Physical Chemistry Chemical Physics : PCCP·Sean M Ryno, Chad Risko
Dec 18, 2019·Chemical Society Reviews·Hebing HuYi Long

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