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Title: In Situ Structure Characterization in Slot-Die-Printed All-Polymer Solar Cells with Efficiency Over 9%

Abstract

Herein, high-performance printed all-polymer solar cells (all-PSCs) based on a bulk-heterojunction (BHJ) blend film are demonstrated using PTzBI as the donor and N2200 as the acceptor. A slot-die process is used to prepare the BHJ blend, which is a cost-effective, high-throughput approach to achieve large-area photovoltaic devices. The real-time crystallization of polymers in the film drying process is investigated by in situ grazing incidence wide-angle X-ray scattering characterization. Printing is found to significantly improve the crystallinity of the polymer blend in comparison with spin coating. Moreover, printing with 1,8-diiodooctane as the solvent additive enhances the polymer aggregation and crystallization during solvent evaporation, eventually leading to multi-length-scale phase separation, with PTzBI-rich domains in-between the N2200 crystalline fibers. This unique morphology achieved by printing fabrication results in an impressively high power conversion efficiency of 9.10%, which is the highest efficiency reported for printed all-PSCs. Finally, these findings provide important guidelines for controlling film drying dynamics for processing all-PSCs.

Authors:
 [1];  [2];  [3];  [4];  [3];  [5];  [6];  [7];  [3];  [5];  [5]; ORCiD logo [2]
  1. South China Univ. of Technology, Guangzhou (China); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of Massachusetts, Amherst, MA (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Shanghai Jiao Tong Univ. (China); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  5. South China Univ. of Technology, Guangzhou (China)
  6. Shanghai Jiao Tong Univ. (China)
  7. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); US Department of the Navy, Office of Naval Research (ONR)
OSTI Identifier:
1599802
Grant/Contract Number:  
AC02-05CH11231; 21822505; 21520102006; 51521002; 51673069; N00014-17-1-224
Resource Type:
Accepted Manuscript
Journal Name:
Solar RRL
Additional Journal Information:
Journal Volume: 3; Journal Issue: 7; Journal ID: ISSN 2367-198X
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; all-polymer solar cells; in situ characterization; printing; slot-die process

Citation Formats

Zhong, Wenkai, Hu, Qin, Jiang, Yufeng, Li, Yu, Chen, Teresa L., Ying, Lei, Liu, Feng, Wang, Cheng, Liu, Yi, Huang, Fei, Cao, Yong, and Russell, Thomas P.. In Situ Structure Characterization in Slot-Die-Printed All-Polymer Solar Cells with Efficiency Over 9%. United States: N. p., 2019. Web. https://doi.org/10.1002/solr.201900032.
Zhong, Wenkai, Hu, Qin, Jiang, Yufeng, Li, Yu, Chen, Teresa L., Ying, Lei, Liu, Feng, Wang, Cheng, Liu, Yi, Huang, Fei, Cao, Yong, & Russell, Thomas P.. In Situ Structure Characterization in Slot-Die-Printed All-Polymer Solar Cells with Efficiency Over 9%. United States. https://doi.org/10.1002/solr.201900032
Zhong, Wenkai, Hu, Qin, Jiang, Yufeng, Li, Yu, Chen, Teresa L., Ying, Lei, Liu, Feng, Wang, Cheng, Liu, Yi, Huang, Fei, Cao, Yong, and Russell, Thomas P.. Mon . "In Situ Structure Characterization in Slot-Die-Printed All-Polymer Solar Cells with Efficiency Over 9%". United States. https://doi.org/10.1002/solr.201900032. https://www.osti.gov/servlets/purl/1599802.
@article{osti_1599802,
title = {In Situ Structure Characterization in Slot-Die-Printed All-Polymer Solar Cells with Efficiency Over 9%},
author = {Zhong, Wenkai and Hu, Qin and Jiang, Yufeng and Li, Yu and Chen, Teresa L. and Ying, Lei and Liu, Feng and Wang, Cheng and Liu, Yi and Huang, Fei and Cao, Yong and Russell, Thomas P.},
abstractNote = {Herein, high-performance printed all-polymer solar cells (all-PSCs) based on a bulk-heterojunction (BHJ) blend film are demonstrated using PTzBI as the donor and N2200 as the acceptor. A slot-die process is used to prepare the BHJ blend, which is a cost-effective, high-throughput approach to achieve large-area photovoltaic devices. The real-time crystallization of polymers in the film drying process is investigated by in situ grazing incidence wide-angle X-ray scattering characterization. Printing is found to significantly improve the crystallinity of the polymer blend in comparison with spin coating. Moreover, printing with 1,8-diiodooctane as the solvent additive enhances the polymer aggregation and crystallization during solvent evaporation, eventually leading to multi-length-scale phase separation, with PTzBI-rich domains in-between the N2200 crystalline fibers. This unique morphology achieved by printing fabrication results in an impressively high power conversion efficiency of 9.10%, which is the highest efficiency reported for printed all-PSCs. Finally, these findings provide important guidelines for controlling film drying dynamics for processing all-PSCs.},
doi = {10.1002/solr.201900032},
journal = {Solar RRL},
number = 7,
volume = 3,
place = {United States},
year = {2019},
month = {4}
}

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