Comparison of the Morphology Development of Polymer-Fullerene and Polymer-Polymer Solar Cells during Solution-Shearing Blade Coating

Gu, Xiaodan; Yan, Hongping; Kurosawa, Tadanori; Schroeder, Bob C.; Gu, Kevin L.; Zhou, Yan; To, John W.  F.; Oosterhout, Stefan D.; Savikhin, Victoria; Molina-Lopez, Francisco; Tassone, Christopher J.; Mannsfeld, Stefan C.  B.; Wang, Cheng; Toney, Michael F.; Bao, Zhenan

doi:10.1002/aenm.201601225

Comparison of the Morphology Development of Polymer-Fullerene and Polymer-Polymer Solar Cells during Solution-Shearing Blade Coating

Journal Article · Mon Aug 22 00:00:00 EDT 2016 · Advanced Energy Materials

DOI:https://doi.org/10.1002/aenm.201601225· OSTI ID:1360189

Gu, Xiaodan ^[1]; Yan, Hongping ^[2]; Kurosawa, Tadanori ^[3]; Schroeder, Bob C. ^[4]; Gu, Kevin L. ^[3]; Zhou, Yan ^[3]; To, John W. F. ^[3]; Oosterhout, Stefan D. ^[2]; Savikhin, Victoria ^[2]; Molina-Lopez, Francisco ^[3]; Tassone, Christopher J. ^[2]; Mannsfeld, Stefan C. B. ^[5]; Wang, Cheng ^[6]; Toney, Michael F. ^[2]; Bao, Zhenan ^[3]

Stanford Univ., CA (United States). Dept. of Chemical Engineering; SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
Stanford Univ., CA (United States). Dept. of Chemical Engineering
Stanford Univ., CA (United States). Dept. of Chemical Engineering; Queen Mary Univ. of London (United Kingdom). School of Biological and Chemical Sciences and Materials Research Inst.
Dresden Univ. of Technology (Germany). Center for Advancing Electronics Dresden
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)

Here in this work, the detailed morphology studies of polymer poly(3-hexylthiophene-2,5-diyl) (P3HT):fullerene(PCBM) and polymer(P3HT):polymer naphthalene diimide thiophene (PNDIT) solar cell are presented to understand the challenge for getting high performance all-polymer solar cells. The in situ X-ray scattering and optical interferometry and ex situ hard and soft X-ray scattering and imaging techniques are used to characterize the bulk heterojunction (BHJ) ink during drying and in dried state. The crystallization of P3HT polymers in P3HT:PCBM bulk heterojunction shows very different behavior compared to that of P3HT:PNDIT BHJ due to different mobilities of P3HT in the donor:acceptor glass. Supplemented by the ex situ grazing incidence X-ray diffraction and soft X-ray scattering, PNDIT has a lower tendency to form a mixed phase with P3HT than PCBM, which may be the key to inhibit the donor polymer crystallization process, thus creating preferred small phase separation between the donor and acceptor polymer.

View Accepted Manuscript (DOE)

Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); US Department of the Navy, Office of Naval Research (ONR)

Grant/Contract Number:: AC02-76SF00515; AC02-05CH11231

OSTI ID:: 1360189

Alternate ID(s):: OSTI ID: 1440001

Journal Information:: Advanced Energy Materials, Journal Name: Advanced Energy Materials Journal Issue: 22 Vol. 6; ISSN 1614-6832

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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Deconstructing the behavior of donor–acceptor copolymers in solution & the melt: the case of PTB7 Ryno, Sean M.; Risko, Chad Physical Chemistry Chemical Physics, Vol. 21, Issue 15 https://doi.org/10.1039/c9cp00777f	journal	January 2019
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Optimization of processing solvent and film morphology to achieve efficient non-fullerene polymer solar cells processed in air An, Kang; Zhong, Wenkai; Ying, Lei Journal of Materials Chemistry C, Vol. 8, Issue 1 https://doi.org/10.1039/c9tc05358a	journal	January 2020

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