Morphology of a Ternary Blend Solar Cell Based on Small Molecule:Conjugated Polymer:Fullerene Fabricated by Blade Coating
Abstract
Abstract Here, conjugated polymer is added as third component to tune the solution viscosity, morphology, and function of small molecule (SM) based bulk‐heterojunction (BHJ) solar cells, which are fabricated using blade coating. Novel information about the effect of blade coating speed on the nanoscale morphology and function of ternary blend solar cells is provided. The crystal sizes increase with an increase of coating speed for both binary and ternary blends, while the addition of the third component tends to favor smaller SM crystal grains and improves the connectivity of SM crystals. Small angle neutron scattering experiments provide the first clear experimental evidence that the addition of the third component would significantly impact the fullerene phase separation, which is crucial for bimolecular recombination and charge transport. It shows that for both binary and ternary blends, the concentration and sizes of [6,6]‐phenyl‐C61‐butyric acid methyl ester (PCBM) aggregates increase with an increase of coating speed, while addition of third component does not affect the volume fraction of PCBM aggregates but impacts the size of PCBM aggregates. It is demonstrated that the judicious selection of blade coating speed and addition of conjugated polymer optimize the morphology of SM‐BHJ, providing guidelines for high performance SM‐BHJsmore »
- Authors:
-
[1];
- Institute of Optoelectronic Display National &, Local United Engineering Lab of Flat Panel Display Technology Fuzhou University Fuzhou 350002 China
- Institute of Optoelectronic Display National &, Local United Engineering Lab of Flat Panel Display Technology Fuzhou University Fuzhou 350002 China, College of Information Science and Engineering Fujian University of Technology Fuzhou 350108 China
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1378793
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Advanced Functional Materials
- Additional Journal Information:
- Journal Name: Advanced Functional Materials Journal Volume: 27 Journal Issue: 40; Journal ID: ISSN 1616-301X
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- Germany
- Language:
- English
Citation Formats
Wu, Xiaomin, Lan, Shuqiong, Zhang, Guocheng, Chen, Qizhen, Chen, Huipeng, and Guo, Tailiang. Morphology of a Ternary Blend Solar Cell Based on Small Molecule:Conjugated Polymer:Fullerene Fabricated by Blade Coating. Germany: N. p., 2017.
Web. doi:10.1002/adfm.201703268.
Wu, Xiaomin, Lan, Shuqiong, Zhang, Guocheng, Chen, Qizhen, Chen, Huipeng, & Guo, Tailiang. Morphology of a Ternary Blend Solar Cell Based on Small Molecule:Conjugated Polymer:Fullerene Fabricated by Blade Coating. Germany. https://doi.org/10.1002/adfm.201703268
Wu, Xiaomin, Lan, Shuqiong, Zhang, Guocheng, Chen, Qizhen, Chen, Huipeng, and Guo, Tailiang. Wed .
"Morphology of a Ternary Blend Solar Cell Based on Small Molecule:Conjugated Polymer:Fullerene Fabricated by Blade Coating". Germany. https://doi.org/10.1002/adfm.201703268.
@article{osti_1378793,
title = {Morphology of a Ternary Blend Solar Cell Based on Small Molecule:Conjugated Polymer:Fullerene Fabricated by Blade Coating},
author = {Wu, Xiaomin and Lan, Shuqiong and Zhang, Guocheng and Chen, Qizhen and Chen, Huipeng and Guo, Tailiang},
abstractNote = {Abstract Here, conjugated polymer is added as third component to tune the solution viscosity, morphology, and function of small molecule (SM) based bulk‐heterojunction (BHJ) solar cells, which are fabricated using blade coating. Novel information about the effect of blade coating speed on the nanoscale morphology and function of ternary blend solar cells is provided. The crystal sizes increase with an increase of coating speed for both binary and ternary blends, while the addition of the third component tends to favor smaller SM crystal grains and improves the connectivity of SM crystals. Small angle neutron scattering experiments provide the first clear experimental evidence that the addition of the third component would significantly impact the fullerene phase separation, which is crucial for bimolecular recombination and charge transport. It shows that for both binary and ternary blends, the concentration and sizes of [6,6]‐phenyl‐C61‐butyric acid methyl ester (PCBM) aggregates increase with an increase of coating speed, while addition of third component does not affect the volume fraction of PCBM aggregates but impacts the size of PCBM aggregates. It is demonstrated that the judicious selection of blade coating speed and addition of conjugated polymer optimize the morphology of SM‐BHJ, providing guidelines for high performance SM‐BHJs from roll‐to‐roll production.},
doi = {10.1002/adfm.201703268},
journal = {Advanced Functional Materials},
number = 40,
volume = 27,
place = {Germany},
year = {Wed Sep 06 00:00:00 EDT 2017},
month = {Wed Sep 06 00:00:00 EDT 2017}
}
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https://doi.org/10.1002/adfm.201703268
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