An efficient and thermally stable interconnecting layer for tandem organic solar cells

Feng Yang; Dong Won Kang; Yong Sang Kim

doi:10.1016/j.solener.2017.06.054

An efficient and thermally stable interconnecting layer for tandem organic solar cells

Feng Yang
, Dong Won Kang
, Yong Sang Kim

Department of Electronic and Electrical Engineering

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

13 Scopus citations

Abstract

We report a novel interconnecting layer (ICL) consisting of MoO₃/Au/Al/ZnO for efficient operation of inverted homo-tandem organic solar cells employing poly(3-hexylthiophene) (P3HT) and (6,6)-phenyl C61-butyric acid methyl ester (PCBM). It was found that the ultrathin metal bilayer of Au/Al, a few nanometers, can align the energy levels and play a significant role in the charge extraction and recombination within the ICL. And the ICL showed an electrically ohmic-contact, high transmittance and very planar morphology for tandem application. The performance of air-fabricated homo-tandem organic solar cells with this new ICL delivered an average power conversion efficiency (PCE) of 3.0%, which is very close to the PCE of 3.3% from the state-of-the-art P3HT:PCBM based homo-tandem organic solar cells. Meanwhile, thermal stability tests at an elevated temperature of 150 °C for 12 h showed stable ICL with successful operation.

Original language	English
Pages (from-to)	552-560
Number of pages	9
Journal	Solar Energy
Volume	155
DOIs	https://doi.org/10.1016/j.solener.2017.06.054
State	Published - 2017

Keywords

Interconnecting layer
Inverted tandem
Organic solar cells
Thermal stability

UN SDGs

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

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10.1016/j.solener.2017.06.054

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@article{13bdfe338e724b7b9a7e335b0b1d1760,

title = "An efficient and thermally stable interconnecting layer for tandem organic solar cells",

abstract = "We report a novel interconnecting layer (ICL) consisting of MoO3/Au/Al/ZnO for efficient operation of inverted homo-tandem organic solar cells employing poly(3-hexylthiophene) (P3HT) and (6,6)-phenyl C61-butyric acid methyl ester (PCBM). It was found that the ultrathin metal bilayer of Au/Al, a few nanometers, can align the energy levels and play a significant role in the charge extraction and recombination within the ICL. And the ICL showed an electrically ohmic-contact, high transmittance and very planar morphology for tandem application. The performance of air-fabricated homo-tandem organic solar cells with this new ICL delivered an average power conversion efficiency (PCE) of 3.0\%, which is very close to the PCE of 3.3\% from the state-of-the-art P3HT:PCBM based homo-tandem organic solar cells. Meanwhile, thermal stability tests at an elevated temperature of 150 °C for 12 h showed stable ICL with successful operation.",

keywords = "Interconnecting layer, Inverted tandem, Organic solar cells, Thermal stability",

author = "Feng Yang and Kang, \{Dong Won\} and Kim, \{Yong Sang\}",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2017",

doi = "10.1016/j.solener.2017.06.054",

language = "English",

volume = "155",

pages = "552--560",

journal = "Solar Energy",

issn = "0038-092X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - An efficient and thermally stable interconnecting layer for tandem organic solar cells

AU - Yang, Feng

AU - Kang, Dong Won

AU - Kim, Yong Sang

PY - 2017

Y1 - 2017

N2 - We report a novel interconnecting layer (ICL) consisting of MoO3/Au/Al/ZnO for efficient operation of inverted homo-tandem organic solar cells employing poly(3-hexylthiophene) (P3HT) and (6,6)-phenyl C61-butyric acid methyl ester (PCBM). It was found that the ultrathin metal bilayer of Au/Al, a few nanometers, can align the energy levels and play a significant role in the charge extraction and recombination within the ICL. And the ICL showed an electrically ohmic-contact, high transmittance and very planar morphology for tandem application. The performance of air-fabricated homo-tandem organic solar cells with this new ICL delivered an average power conversion efficiency (PCE) of 3.0%, which is very close to the PCE of 3.3% from the state-of-the-art P3HT:PCBM based homo-tandem organic solar cells. Meanwhile, thermal stability tests at an elevated temperature of 150 °C for 12 h showed stable ICL with successful operation.

AB - We report a novel interconnecting layer (ICL) consisting of MoO3/Au/Al/ZnO for efficient operation of inverted homo-tandem organic solar cells employing poly(3-hexylthiophene) (P3HT) and (6,6)-phenyl C61-butyric acid methyl ester (PCBM). It was found that the ultrathin metal bilayer of Au/Al, a few nanometers, can align the energy levels and play a significant role in the charge extraction and recombination within the ICL. And the ICL showed an electrically ohmic-contact, high transmittance and very planar morphology for tandem application. The performance of air-fabricated homo-tandem organic solar cells with this new ICL delivered an average power conversion efficiency (PCE) of 3.0%, which is very close to the PCE of 3.3% from the state-of-the-art P3HT:PCBM based homo-tandem organic solar cells. Meanwhile, thermal stability tests at an elevated temperature of 150 °C for 12 h showed stable ICL with successful operation.

KW - Interconnecting layer

KW - Inverted tandem

KW - Organic solar cells

KW - Thermal stability

UR - https://www.scopus.com/pages/publications/85021402700

U2 - 10.1016/j.solener.2017.06.054

DO - 10.1016/j.solener.2017.06.054

M3 - Article

AN - SCOPUS:85021402700

SN - 0038-092X

VL - 155

SP - 552

EP - 560

JO - Solar Energy

JF - Solar Energy

ER -

An efficient and thermally stable interconnecting layer for tandem organic solar cells

Abstract

Keywords

UN SDGs

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