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Title: An X-Ray Fluorescence Study on the Segregation of Cs and I in and Inverted Organic Solar Cell

Abstract

X-ray near-total-reflection fluorescence reveals that in multilayers of the inverted organic solar cell (ITO/CsI/P3HT:PCBM-based) Cs diffuses into the organic layer and iodide diffuses into the ITO. Laser ablation inductively coupled plasma mass spectrometry measurements, which integrate elemental concentration across the whole multilayer structure, indicate that the Cs:I ratio remains 1:1 confirming there is no loss of iodine from the sample. Iodide diffusion to the bulk ITO layer is also found in a similarly prepared ITO/NaI/P3HT:PCBM multilayer structure. Our results are consistent with recent XPS measurements which show that the Cs:I ratio at the ITO/CsI surface exceeds 8:1, and rationalize this observation.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Ames Laboratory
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1133349
Report Number(s):
IS-J 8204
Journal ID: ISSN 1566-1199
DOE Contract Number:
DE-AC02-07CH11358
Resource Type:
Journal Article
Resource Relation:
Journal Name: Organic Electronics; Journal Volume: 14; Journal Issue: 2013
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Inverted organic solar cells; CsI Interlayer; X-ray fluorescence; Inductively coupled plasma mass spectrometry; Laser ablation

Citation Formats

Lindemann, William R., Xiao, Teng, Wang, Wenjie, Berry, Jonna E., Anderson, Nathaniel A., Houk, Robert S., Shinar, Ruth, Shinar, Joseph, and Vaknin, David. An X-Ray Fluorescence Study on the Segregation of Cs and I in and Inverted Organic Solar Cell. United States: N. p., 2013. Web. doi:10.1016/j.orgel.2013.09.019.
Lindemann, William R., Xiao, Teng, Wang, Wenjie, Berry, Jonna E., Anderson, Nathaniel A., Houk, Robert S., Shinar, Ruth, Shinar, Joseph, & Vaknin, David. An X-Ray Fluorescence Study on the Segregation of Cs and I in and Inverted Organic Solar Cell. United States. doi:10.1016/j.orgel.2013.09.019.
Lindemann, William R., Xiao, Teng, Wang, Wenjie, Berry, Jonna E., Anderson, Nathaniel A., Houk, Robert S., Shinar, Ruth, Shinar, Joseph, and Vaknin, David. Tue . "An X-Ray Fluorescence Study on the Segregation of Cs and I in and Inverted Organic Solar Cell". United States. doi:10.1016/j.orgel.2013.09.019.
@article{osti_1133349,
title = {An X-Ray Fluorescence Study on the Segregation of Cs and I in and Inverted Organic Solar Cell},
author = {Lindemann, William R. and Xiao, Teng and Wang, Wenjie and Berry, Jonna E. and Anderson, Nathaniel A. and Houk, Robert S. and Shinar, Ruth and Shinar, Joseph and Vaknin, David},
abstractNote = {X-ray near-total-reflection fluorescence reveals that in multilayers of the inverted organic solar cell (ITO/CsI/P3HT:PCBM-based) Cs diffuses into the organic layer and iodide diffuses into the ITO. Laser ablation inductively coupled plasma mass spectrometry measurements, which integrate elemental concentration across the whole multilayer structure, indicate that the Cs:I ratio remains 1:1 confirming there is no loss of iodine from the sample. Iodide diffusion to the bulk ITO layer is also found in a similarly prepared ITO/NaI/P3HT:PCBM multilayer structure. Our results are consistent with recent XPS measurements which show that the Cs:I ratio at the ITO/CsI surface exceeds 8:1, and rationalize this observation.},
doi = {10.1016/j.orgel.2013.09.019},
journal = {Organic Electronics},
number = 2013,
volume = 14,
place = {United States},
year = {Tue Oct 08 00:00:00 EDT 2013},
month = {Tue Oct 08 00:00:00 EDT 2013}
}
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