Characterization of Interfaces between Contacts and Active Layer in Organic Photovoltaics Using Impedance Spectroscopy and Equivalent Circuit Model

En Ping Yao, Shiun Ming Shiu, Yi Jhe Tsai, Yu Shyan Lin, Wei Chou Hsu

研究成果: Article

1 引文 (Scopus)

摘要

This study investigates the interface between the active layer and contacts in organic photovoltaics (OPVs) since the contact materials strongly affect the energy barrier at the interfaces. The interfacial characteristics are simply defined as a resistance-capacitance (R-C) shunt pair and extracted by fitting the impedance spectra to the equivalent circuit model. A change in the energy barrier is found to affect the values of R and C at the interface and the carrier transition time. In addition, the effect of electron buffer layer (TiO2) thickness on the interfacial characteristics is analyzed using an impedance spectroscopy. The interfacial area between the hole buffer layer (MoO3), and the active layer affects the values of R and C at the interface.

原文English
文章編號7055231
頁(從 - 到)903-911
頁數9
期刊IEEE Journal of Photovoltaics
5
發行號3
DOIs
出版狀態Published - 2015 五月 1

指紋

Energy barriers
Buffer layers
equivalent circuits
Equivalent circuits
Spectroscopy
impedance
Electron transitions
spectroscopy
Capacitance
buffers
Electrons
shunts
electric contacts
capacitance
energy
electrons
molybdenum trioxide

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

引用此文

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title = "Characterization of Interfaces between Contacts and Active Layer in Organic Photovoltaics Using Impedance Spectroscopy and Equivalent Circuit Model",
abstract = "This study investigates the interface between the active layer and contacts in organic photovoltaics (OPVs) since the contact materials strongly affect the energy barrier at the interfaces. The interfacial characteristics are simply defined as a resistance-capacitance (R-C) shunt pair and extracted by fitting the impedance spectra to the equivalent circuit model. A change in the energy barrier is found to affect the values of R and C at the interface and the carrier transition time. In addition, the effect of electron buffer layer (TiO2) thickness on the interfacial characteristics is analyzed using an impedance spectroscopy. The interfacial area between the hole buffer layer (MoO3), and the active layer affects the values of R and C at the interface.",
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Characterization of Interfaces between Contacts and Active Layer in Organic Photovoltaics Using Impedance Spectroscopy and Equivalent Circuit Model. / Yao, En Ping; Shiu, Shiun Ming; Tsai, Yi Jhe; Lin, Yu Shyan; Hsu, Wei Chou.

於: IEEE Journal of Photovoltaics, 卷 5, 編號 3, 7055231, 01.05.2015, p. 903-911.

研究成果: Article

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AU - Shiu, Shiun Ming

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AU - Hsu, Wei Chou

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