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Title: Visualization of Hierarchical Nanodomains in Polymer/Fullerene Bulk Heterojunction Solar Cells

Abstract

Here, traditional electron microscopy techniques such as bright-field imaging provide poor contrast for organic films and identification of structures in amorphous material can be problematic, particularly in high-performance organic solar cells. By combining energy-filtered corrected transmission electron microscopy, together with electron energy loss and X-ray energy-dispersive hyperspectral imaging, we have imaged PTB7/ PC 61BM blended polymer optical photovoltaic films, and were able to identify domains ranging in size from several hundred nanometers to several nanometers in extent. This work verifies that microstructural domains exist in bulk heterojunctions in PTB7/PC 61BM polymeric solar cells at multiple length scales and expands our understanding of optimal device performance providing insight for the design of even higher performance cells.

Authors:
 [1];  [1];  [2];  [3];  [3];  [2];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); The Univ. of Chicago, Chicago, IL (United States)
  3. The Univ. of Chicago, Chicago, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1239951
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Microscopy and Microanalysis
Additional Journal Information:
Journal Volume: 20; Journal Issue: 05; Journal ID: ISSN 1431-9276
Publisher:
Microscopy Society of America (MSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 14 SOLAR ENERGY; X-ray energy-dispersive spectroscopy; chromatic aberration correction; electron energy-loss spectroscopy; energy-filtered transmission electron microscopy; organic photovoltaics

Citation Formats

Wen, Jianguo, Miller, Dean J., Chen, Wei, Xu, Tao, Yu, Luping, Darling, Seth B., and Zaluzec, Nestor J. Visualization of Hierarchical Nanodomains in Polymer/Fullerene Bulk Heterojunction Solar Cells. United States: N. p., 2014. Web. doi:10.1017/S1431927614001615.
Wen, Jianguo, Miller, Dean J., Chen, Wei, Xu, Tao, Yu, Luping, Darling, Seth B., & Zaluzec, Nestor J. Visualization of Hierarchical Nanodomains in Polymer/Fullerene Bulk Heterojunction Solar Cells. United States. doi:10.1017/S1431927614001615.
Wen, Jianguo, Miller, Dean J., Chen, Wei, Xu, Tao, Yu, Luping, Darling, Seth B., and Zaluzec, Nestor J. Fri . "Visualization of Hierarchical Nanodomains in Polymer/Fullerene Bulk Heterojunction Solar Cells". United States. doi:10.1017/S1431927614001615. https://www.osti.gov/servlets/purl/1239951.
@article{osti_1239951,
title = {Visualization of Hierarchical Nanodomains in Polymer/Fullerene Bulk Heterojunction Solar Cells},
author = {Wen, Jianguo and Miller, Dean J. and Chen, Wei and Xu, Tao and Yu, Luping and Darling, Seth B. and Zaluzec, Nestor J.},
abstractNote = {Here, traditional electron microscopy techniques such as bright-field imaging provide poor contrast for organic films and identification of structures in amorphous material can be problematic, particularly in high-performance organic solar cells. By combining energy-filtered corrected transmission electron microscopy, together with electron energy loss and X-ray energy-dispersive hyperspectral imaging, we have imaged PTB7/ PC61BM blended polymer optical photovoltaic films, and were able to identify domains ranging in size from several hundred nanometers to several nanometers in extent. This work verifies that microstructural domains exist in bulk heterojunctions in PTB7/PC61BM polymeric solar cells at multiple length scales and expands our understanding of optimal device performance providing insight for the design of even higher performance cells.},
doi = {10.1017/S1431927614001615},
journal = {Microscopy and Microanalysis},
number = 05,
volume = 20,
place = {United States},
year = {Fri Jun 20 00:00:00 EDT 2014},
month = {Fri Jun 20 00:00:00 EDT 2014}
}

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Cited by: 6 works
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Works referenced in this record:

Hierarchical Nanomorphologies Promote Exciton Dissociation in Polymer/Fullerene Bulk Heterojunction Solar Cells
journal, September 2011

  • Chen, Wei; Xu, Tao; He, Feng
  • Nano Letters, Vol. 11, Issue 9, p. 3707-3713
  • DOI: 10.1021/nl201715q

Polymer Photovoltaic Cells: Enhanced Efficiencies via a Network of Internal Donor-Acceptor Heterojunctions
journal, December 1995


For the Bright Future-Bulk Heterojunction Polymer Solar Cells with Power Conversion Efficiency of 7.4%
journal, May 2010

  • Liang, Yongye; Xu, Zheng; Xia, Jiangbin
  • Advanced Materials, Vol. 22, Issue 20, p. E135-E138
  • DOI: 10.1002/adma.200903528