Effect of indium and tin contamination on the efficiency and electronic properties of organic bulk hetero-junction solar cells

Anirudh Sharma; Scott Watkins; David Lewis; Gunther Andersson

doi:10.1016/j.solmat.2011.07.012

Effect of indium and tin contamination on the efficiency and electronic properties of organic bulk hetero-junction solar cells

Anirudh Sharma, Scott Watkins, David Lewis, Gunther Andersson

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

Organic photovoltaic devices using an electrode of indium tin oxide (ITO) coated with a buffer layer of poly(3,4-ethylenedioxythiophene):poly(4- styrenesulfonate) (PEDOT:PSS) exposed to controlled humidity during fabrication showed a 6575% decrease in efficiency and displayed S-shaped JV curves, changes, which are attributed to different levels of indium and tin migration into the PEDOT:PSS film. A distinct shift in the secondary electron cut-off in the UV Photoelectron spectra (UPS) of ITO/PEDOT:PSS samples exposed to controlled humidity indicate an increase of the dipole at the ITO/PEDOT:PSS interface, which could explain the appearance of S-shaped JV curves. Additionally, the electron density at low binding energies is reduced for the humidity exposed PEDOT:PSS suggesting a second mechanism for decreased device performance.

Original language	English
Pages (from-to)	3251-3255
Number of pages	5
Journal	Solar Energy Materials and Solar Cells
Volume	95
Issue number	12
DOIs	https://doi.org/10.1016/j.solmat.2011.07.012
Publication status	Published - Dec 2011

Keywords

Efficiency
Humidity
Indium tin contamination
Organic bulk hetero-junction photovoltaic
Photoelectron spectroscopy
S-shaped JV curves

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.solmat.2011.07.012

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title = "Effect of indium and tin contamination on the efficiency and electronic properties of organic bulk hetero-junction solar cells",

abstract = "Organic photovoltaic devices using an electrode of indium tin oxide (ITO) coated with a buffer layer of poly(3,4-ethylenedioxythiophene):poly(4- styrenesulfonate) (PEDOT:PSS) exposed to controlled humidity during fabrication showed a 6575% decrease in efficiency and displayed S-shaped JV curves, changes, which are attributed to different levels of indium and tin migration into the PEDOT:PSS film. A distinct shift in the secondary electron cut-off in the UV Photoelectron spectra (UPS) of ITO/PEDOT:PSS samples exposed to controlled humidity indicate an increase of the dipole at the ITO/PEDOT:PSS interface, which could explain the appearance of S-shaped JV curves. Additionally, the electron density at low binding energies is reduced for the humidity exposed PEDOT:PSS suggesting a second mechanism for decreased device performance.",

keywords = "Efficiency, Humidity, Indium tin contamination, Organic bulk hetero-junction photovoltaic, Photoelectron spectroscopy, S-shaped JV curves",

author = "Anirudh Sharma and Scott Watkins and David Lewis and Gunther Andersson",

year = "2011",

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doi = "10.1016/j.solmat.2011.07.012",

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journal = "Solar Energy Materials and Solar Cells",

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T1 - Effect of indium and tin contamination on the efficiency and electronic properties of organic bulk hetero-junction solar cells

AU - Sharma, Anirudh

AU - Watkins, Scott

AU - Lewis, David

AU - Andersson, Gunther

PY - 2011/12

Y1 - 2011/12

N2 - Organic photovoltaic devices using an electrode of indium tin oxide (ITO) coated with a buffer layer of poly(3,4-ethylenedioxythiophene):poly(4- styrenesulfonate) (PEDOT:PSS) exposed to controlled humidity during fabrication showed a 6575% decrease in efficiency and displayed S-shaped JV curves, changes, which are attributed to different levels of indium and tin migration into the PEDOT:PSS film. A distinct shift in the secondary electron cut-off in the UV Photoelectron spectra (UPS) of ITO/PEDOT:PSS samples exposed to controlled humidity indicate an increase of the dipole at the ITO/PEDOT:PSS interface, which could explain the appearance of S-shaped JV curves. Additionally, the electron density at low binding energies is reduced for the humidity exposed PEDOT:PSS suggesting a second mechanism for decreased device performance.

AB - Organic photovoltaic devices using an electrode of indium tin oxide (ITO) coated with a buffer layer of poly(3,4-ethylenedioxythiophene):poly(4- styrenesulfonate) (PEDOT:PSS) exposed to controlled humidity during fabrication showed a 6575% decrease in efficiency and displayed S-shaped JV curves, changes, which are attributed to different levels of indium and tin migration into the PEDOT:PSS film. A distinct shift in the secondary electron cut-off in the UV Photoelectron spectra (UPS) of ITO/PEDOT:PSS samples exposed to controlled humidity indicate an increase of the dipole at the ITO/PEDOT:PSS interface, which could explain the appearance of S-shaped JV curves. Additionally, the electron density at low binding energies is reduced for the humidity exposed PEDOT:PSS suggesting a second mechanism for decreased device performance.

KW - Efficiency

KW - Humidity

KW - Indium tin contamination

KW - Organic bulk hetero-junction photovoltaic

KW - Photoelectron spectroscopy

KW - S-shaped JV curves

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DO - 10.1016/j.solmat.2011.07.012

M3 - Article

SN - 0927-0248

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JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

IS - 12

ER -

Effect of indium and tin contamination on the efficiency and electronic properties of organic bulk hetero-junction solar cells

Abstract

Keywords

UN SDGs

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