ACS applied materials & interfaces, volume 6, issue 17, pages 15040-15051

Bis(tri-n-hexylsilyl oxide) Silicon Phthalocyanine: A Unique Additive in Ternary Bulk Heterojunction Organic Photovoltaic Devices

Benoît H. Lessard 1
Jeremy D Dang 1
Trevor J. Grant 1
Dong Gao 2
Dwight Seferos 1, 2
1
 
Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada
2
 
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
3
 
Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario M5S 3E4, Canada
Publication typeJournal Article
Publication date2014-08-22
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.5
ISSN19448244, 19448252
General Materials Science
Abstract
Previous studies have shown that the use of bis(tri-n-hexylsilyl oxide) silicon phthalocyanine ((3HS)2-SiPc) as an additive in a P3HT:PC61BM cascade ternary bulk heterojunction organic photovoltaic (BHJ OPV) device results in an increase in the short circuit current (J(SC)) and efficiency (η(eff)) of up to 25% and 20%, respectively. The previous studies have attributed the increase in performance to the presence of (3HS)2-SiPc at the BHJ interface. In this study, we explored the molecular characteristics of (3HS)2-SiPc which makes it so effective in increasing the OPV device J(SC) and η(eff. Initially, we synthesized phthalocyanine-based additives using different core elements such as germanium and boron instead of silicon, each having similar frontier orbital energies compared to (3HS)2-SiPc and tested their effect on BHJ OPV device performance. We observed that addition of bis(tri-n-hexylsilyl oxide) germanium phthalocyanine ((3HS)2-GePc) or tri-n-hexylsilyl oxide boron subphthalocyanine (3HS-BsubPc) resulted in a nonstatistically significant increase in JSC and η(eff). Secondly, we kept the silicon phthalocyanine core and substituted the tri-n-hexylsilyl solubilizing groups with pentadecyl phenoxy groups and tested the resulting dye in a BHJ OPV. While an increase in JSC and η(eff) was observed at low (PDP)2-SiPc loadings, the increase was not as significant as (3HS)2-SiPc; therefore, (3HS)2-SiPc is a unique additive. During our study, we observed that (3HS)2-SiPc had an extraordinary tendency to crystallize compared to the other compounds in this study and our general experience. On the basis of this observation, we have offered a hypothesis that when (3HS)2-SiPc migrates to the P3HT:PC61BM interface the reason for its unique performance is not solely due to its frontier orbital energies but also might be due to a high driving force for crystallization.

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Lessard B. H. et al. Bis(tri-n-hexylsilyl oxide) Silicon Phthalocyanine: A Unique Additive in Ternary Bulk Heterojunction Organic Photovoltaic Devices // ACS applied materials & interfaces. 2014. Vol. 6. No. 17. pp. 15040-15051.
GOST all authors (up to 50) Copy
Lessard B. H., Dang J. D., Grant T. J., Gao D., Seferos D., Bender T. P. Bis(tri-n-hexylsilyl oxide) Silicon Phthalocyanine: A Unique Additive in Ternary Bulk Heterojunction Organic Photovoltaic Devices // ACS applied materials & interfaces. 2014. Vol. 6. No. 17. pp. 15040-15051.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/am503038t
UR - https://doi.org/10.1021/am503038t
TI - Bis(tri-n-hexylsilyl oxide) Silicon Phthalocyanine: A Unique Additive in Ternary Bulk Heterojunction Organic Photovoltaic Devices
T2 - ACS applied materials & interfaces
AU - Dang, Jeremy D
AU - Lessard, Benoît H.
AU - Grant, Trevor J.
AU - Gao, Dong
AU - Seferos, Dwight
AU - Bender, Timothy P
PY - 2014
DA - 2014/08/22 00:00:00
PB - American Chemical Society (ACS)
SP - 15040-15051
IS - 17
VL - 6
SN - 1944-8244
SN - 1944-8252
ER -
BibTex |
Cite this
BibTex Copy
@article{2014_Lessard,
author = {Jeremy D Dang and Benoît H. Lessard and Trevor J. Grant and Dong Gao and Dwight Seferos and Timothy P Bender},
title = {Bis(tri-n-hexylsilyl oxide) Silicon Phthalocyanine: A Unique Additive in Ternary Bulk Heterojunction Organic Photovoltaic Devices},
journal = {ACS applied materials & interfaces},
year = {2014},
volume = {6},
publisher = {American Chemical Society (ACS)},
month = {aug},
url = {https://doi.org/10.1021/am503038t},
number = {17},
pages = {15040--15051},
doi = {10.1021/am503038t}
}
MLA
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MLA Copy
Lessard, Benoît H., et al. “Bis(tri-n-hexylsilyl oxide) Silicon Phthalocyanine: A Unique Additive in Ternary Bulk Heterojunction Organic Photovoltaic Devices.” ACS applied materials & interfaces, vol. 6, no. 17, Aug. 2014, pp. 15040-15051. https://doi.org/10.1021/am503038t.
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