Degradation of electrical properties of small molecule organic solar cells under oxygen and moisture

Laura Ciammaruchi; Aldo Di Carlo; Ching W. Tang

doi:10.1557/opl.2014.582

Degradation of electrical properties of small molecule organic solar cells under oxygen and moisture

Laura Ciammaruchi, Aldo Di Carlo, Ching W. Tang

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

We investigated the photovoltaic (PV) parameters of a planar hetero-junction solar cell with di-[4-(N,Nditolyl-amino)-phenyl] cyclohexane (TAPC) as donor (D) and C₆₀ as acceptor (A), upon exposing the acceptor side to oxygen and moisture. We found that for the same time of exposure, even minor oxygen amounts lead to more detrimental results compared to moisture. We argue that the photo-conversion efficiency (PCE) decreases due to creation of recombination centers at the interface, which induce losses in exciton diffusion and charge generation. Under the same conditions, we also registered a direct connection between the cell PV parameters' decay and a C₆₀ thin-film conductivity loss.

Original language	English
Article number	582
Journal	Materials Research Society Symposium Proceedings
Volume	1695
DOIs	https://doi.org/10.1557/opl.2014.582
State	Published - 1 Jan 2014
Externally published	Yes
Event	2014 MRS Spring Meeting - San Francisco, United States Duration: 21 Apr 2014 → 25 Apr 2014

Keywords

organic
photovoltaic
thin film

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

UN SDGs

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

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10.1557/opl.2014.582

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title = "Degradation of electrical properties of small molecule organic solar cells under oxygen and moisture",

abstract = "We investigated the photovoltaic (PV) parameters of a planar hetero-junction solar cell with di-[4-(N,Nditolyl-amino)-phenyl] cyclohexane (TAPC) as donor (D) and C60 as acceptor (A), upon exposing the acceptor side to oxygen and moisture. We found that for the same time of exposure, even minor oxygen amounts lead to more detrimental results compared to moisture. We argue that the photo-conversion efficiency (PCE) decreases due to creation of recombination centers at the interface, which induce losses in exciton diffusion and charge generation. Under the same conditions, we also registered a direct connection between the cell PV parameters' decay and a C60 thin-film conductivity loss.",

keywords = "organic, photovoltaic, thin film",

author = "Laura Ciammaruchi and {Di Carlo}, Aldo and Tang, {Ching W.}",

note = "Publisher Copyright: Copyright {\textcopyright} 2014 Materials Research Society.; 2014 MRS Spring Meeting ; Conference date: 21-04-2014 Through 25-04-2014",

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doi = "10.1557/opl.2014.582",

language = "English",

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T1 - Degradation of electrical properties of small molecule organic solar cells under oxygen and moisture

AU - Ciammaruchi, Laura

AU - Di Carlo, Aldo

AU - Tang, Ching W.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - We investigated the photovoltaic (PV) parameters of a planar hetero-junction solar cell with di-[4-(N,Nditolyl-amino)-phenyl] cyclohexane (TAPC) as donor (D) and C60 as acceptor (A), upon exposing the acceptor side to oxygen and moisture. We found that for the same time of exposure, even minor oxygen amounts lead to more detrimental results compared to moisture. We argue that the photo-conversion efficiency (PCE) decreases due to creation of recombination centers at the interface, which induce losses in exciton diffusion and charge generation. Under the same conditions, we also registered a direct connection between the cell PV parameters' decay and a C60 thin-film conductivity loss.

AB - We investigated the photovoltaic (PV) parameters of a planar hetero-junction solar cell with di-[4-(N,Nditolyl-amino)-phenyl] cyclohexane (TAPC) as donor (D) and C60 as acceptor (A), upon exposing the acceptor side to oxygen and moisture. We found that for the same time of exposure, even minor oxygen amounts lead to more detrimental results compared to moisture. We argue that the photo-conversion efficiency (PCE) decreases due to creation of recombination centers at the interface, which induce losses in exciton diffusion and charge generation. Under the same conditions, we also registered a direct connection between the cell PV parameters' decay and a C60 thin-film conductivity loss.

KW - organic

KW - photovoltaic

KW - thin film

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DO - 10.1557/opl.2014.582

M3 - Conference article

AN - SCOPUS:84924422690

SN - 0272-9172

VL - 1695

JO - Materials Research Society Symposium Proceedings

JF - Materials Research Society Symposium Proceedings

M1 - 582

T2 - 2014 MRS Spring Meeting

Y2 - 21 April 2014 through 25 April 2014

ER -

Degradation of electrical properties of small molecule organic solar cells under oxygen and moisture

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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