The effects of copper phthalocyanine purity on organic solar cell performance

Rhonda F. Salzman; Jiangeng Xue; Barry P. Rand; Alex Alexander; Mark E. Thompson; Stephen R. Forrest

doi:10.1016/j.orgel.2005.09.001

The effects of copper phthalocyanine purity on organic solar cell performance

Rhonda F. Salzman, Jiangeng Xue, Barry P. Rand, Alex Alexander, Mark E. Thompson, Stephen R. Forrest

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Abstract

The performance of small-molecular weight organic double heterojunction donor-acceptor bilayer solar cells is studied as a function of the purity of the donor material, copper phthalocyanine (CuPc). We find that the power conversion efficiency under simulated AM1.5G, 1 sun illumination conditions increases from (0.26 ± 0.01)% to (1.4 ± 0.1)% as the CuPc layer purity increases. Concomitant with the improvements in power conversion efficiency, we find that the hole mobility of the unpurified CuPc is nearly three orders of magnitude lower than for purified source material. Mass spectrometry and Fourier transform infrared spectroscopy are used to identify metal-free phthalocyanine as the primary impurity that degrades both device efficiency and hole mobility.

Original language	English (US)
Pages (from-to)	242-246
Number of pages	5
Journal	Organic Electronics
Volume	6
Issue number	5-6
DOIs	https://doi.org/10.1016/j.orgel.2005.09.001
State	Published - Dec 2005

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Biomaterials
Chemistry(all)
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

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10.1016/j.orgel.2005.09.001

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title = "The effects of copper phthalocyanine purity on organic solar cell performance",

abstract = "The performance of small-molecular weight organic double heterojunction donor-acceptor bilayer solar cells is studied as a function of the purity of the donor material, copper phthalocyanine (CuPc). We find that the power conversion efficiency under simulated AM1.5G, 1 sun illumination conditions increases from (0.26 ± 0.01)% to (1.4 ± 0.1)% as the CuPc layer purity increases. Concomitant with the improvements in power conversion efficiency, we find that the hole mobility of the unpurified CuPc is nearly three orders of magnitude lower than for purified source material. Mass spectrometry and Fourier transform infrared spectroscopy are used to identify metal-free phthalocyanine as the primary impurity that degrades both device efficiency and hole mobility.",

author = "Salzman, {Rhonda F.} and Jiangeng Xue and Rand, {Barry P.} and Alex Alexander and Thompson, {Mark E.} and Forrest, {Stephen R.}",

note = "Funding Information: The authors would like to thank Dorothy Little for mass spectroscopy measurements, and John Eng for help with FTIR measurements. Support for this work was provided by the Air Force Office of Scientific Research, Global Photonic Energy Corp., and the National Renewable Energy Laboratory (NREL). ",

year = "2005",

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doi = "10.1016/j.orgel.2005.09.001",

language = "English (US)",

volume = "6",

pages = "242--246",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier",

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T1 - The effects of copper phthalocyanine purity on organic solar cell performance

AU - Salzman, Rhonda F.

AU - Xue, Jiangeng

AU - Rand, Barry P.

AU - Alexander, Alex

AU - Thompson, Mark E.

AU - Forrest, Stephen R.

N1 - Funding Information: The authors would like to thank Dorothy Little for mass spectroscopy measurements, and John Eng for help with FTIR measurements. Support for this work was provided by the Air Force Office of Scientific Research, Global Photonic Energy Corp., and the National Renewable Energy Laboratory (NREL).

PY - 2005/12

Y1 - 2005/12

N2 - The performance of small-molecular weight organic double heterojunction donor-acceptor bilayer solar cells is studied as a function of the purity of the donor material, copper phthalocyanine (CuPc). We find that the power conversion efficiency under simulated AM1.5G, 1 sun illumination conditions increases from (0.26 ± 0.01)% to (1.4 ± 0.1)% as the CuPc layer purity increases. Concomitant with the improvements in power conversion efficiency, we find that the hole mobility of the unpurified CuPc is nearly three orders of magnitude lower than for purified source material. Mass spectrometry and Fourier transform infrared spectroscopy are used to identify metal-free phthalocyanine as the primary impurity that degrades both device efficiency and hole mobility.

AB - The performance of small-molecular weight organic double heterojunction donor-acceptor bilayer solar cells is studied as a function of the purity of the donor material, copper phthalocyanine (CuPc). We find that the power conversion efficiency under simulated AM1.5G, 1 sun illumination conditions increases from (0.26 ± 0.01)% to (1.4 ± 0.1)% as the CuPc layer purity increases. Concomitant with the improvements in power conversion efficiency, we find that the hole mobility of the unpurified CuPc is nearly three orders of magnitude lower than for purified source material. Mass spectrometry and Fourier transform infrared spectroscopy are used to identify metal-free phthalocyanine as the primary impurity that degrades both device efficiency and hole mobility.

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JO - Organic Electronics

JF - Organic Electronics

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ER -

The effects of copper phthalocyanine purity on organic solar cell performance

Abstract

All Science Journal Classification (ASJC) codes

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