Tungsten oxide/PEDOT:PSS hybrid cascade hole extraction layer for polymer solar cells with enhanced long-term stability and power conversion efficiency

Wanjung Kim; Jung Kyu Kim; Younhee Lim; Insun Park; Yeong Suk Choi; Jong Hyeok Park

doi:10.1016/j.solmat.2013.11.007

Tungsten oxide/PEDOT:PSS hybrid cascade hole extraction layer for polymer solar cells with enhanced long-term stability and power conversion efficiency

Wanjung Kim, Jung Kyu Kim, Younhee Lim, Insun Park, Yeong Suk Choi, Jong Hyeok Park

Department of Chemical and Biomolecular Engineering

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

18 Citations (Scopus)

Abstract

In recent years, alternatives to PEDOT:PSS, which is used in organic light-emitting diodes and polymer solar cells (PSCs), have been actively researched due to its disadvantages in terms of device stability. Nevertheless, PEDOT:PSS is still one of most powerful materials due to its good conductivity, low-temperature processability, and suitable work function that is well-matched with the HOMO energy levels of most donor polymers. In this study, an ultra-thin tungsten oxide/PEDOT:PSS hybrid hole extraction layer (H-HEL) is designed to take advantage of the benefits of PEDOT:PSS and address the device stability problems of PEDOT:PSS. Device stability is dramatically improved and power conversion efficiency is slightly improved in P3HT:PC₆₀BM model system according to the ISOS-D-1 protocol. In order to understand this phenomenon, time-dependent photocurrent-voltage (J-V) measurements are conducted for device stability combined with atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and ultraviolet photoelectron spectroscopy (UPS) studies.

Original language	English
Pages (from-to)	24-30
Number of pages	7
Journal	Solar Energy Materials and Solar Cells
Volume	122
DOIs	https://doi.org/10.1016/j.solmat.2013.11.007
Publication status	Published - 2014 Mar

Bibliographical note

Funding Information:
This work was supported by the NRF of Korea Grant funded by the Ministry of Science, ICT & Future Planning (NRF-2013R1A2A1A09014038, 2011-0006268, 2011-0030254). This work was also supported by SAIT.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films

UN SDGs

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

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10.1016/j.solmat.2013.11.007

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title = "Tungsten oxide/PEDOT:PSS hybrid cascade hole extraction layer for polymer solar cells with enhanced long-term stability and power conversion efficiency",

abstract = "In recent years, alternatives to PEDOT:PSS, which is used in organic light-emitting diodes and polymer solar cells (PSCs), have been actively researched due to its disadvantages in terms of device stability. Nevertheless, PEDOT:PSS is still one of most powerful materials due to its good conductivity, low-temperature processability, and suitable work function that is well-matched with the HOMO energy levels of most donor polymers. In this study, an ultra-thin tungsten oxide/PEDOT:PSS hybrid hole extraction layer (H-HEL) is designed to take advantage of the benefits of PEDOT:PSS and address the device stability problems of PEDOT:PSS. Device stability is dramatically improved and power conversion efficiency is slightly improved in P3HT:PC60BM model system according to the ISOS-D-1 protocol. In order to understand this phenomenon, time-dependent photocurrent-voltage (J-V) measurements are conducted for device stability combined with atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and ultraviolet photoelectron spectroscopy (UPS) studies.",

author = "Wanjung Kim and {Kyu Kim}, Jung and Younhee Lim and Insun Park and {Suk Choi}, Yeong and {Hyeok Park}, Jong",

note = "Funding Information: This work was supported by the NRF of Korea Grant funded by the Ministry of Science, ICT & Future Planning (NRF-2013R1A2A1A09014038, 2011-0006268, 2011-0030254). This work was also supported by SAIT. ",

year = "2014",

month = mar,

doi = "10.1016/j.solmat.2013.11.007",

language = "English",

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pages = "24--30",

journal = "Solar Energy Materials and Solar Cells",

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AU - Kim, Wanjung

AU - Kyu Kim, Jung

AU - Lim, Younhee

AU - Park, Insun

AU - Suk Choi, Yeong

AU - Hyeok Park, Jong

N1 - Funding Information: This work was supported by the NRF of Korea Grant funded by the Ministry of Science, ICT & Future Planning (NRF-2013R1A2A1A09014038, 2011-0006268, 2011-0030254). This work was also supported by SAIT.

PY - 2014/3

Y1 - 2014/3

N2 - In recent years, alternatives to PEDOT:PSS, which is used in organic light-emitting diodes and polymer solar cells (PSCs), have been actively researched due to its disadvantages in terms of device stability. Nevertheless, PEDOT:PSS is still one of most powerful materials due to its good conductivity, low-temperature processability, and suitable work function that is well-matched with the HOMO energy levels of most donor polymers. In this study, an ultra-thin tungsten oxide/PEDOT:PSS hybrid hole extraction layer (H-HEL) is designed to take advantage of the benefits of PEDOT:PSS and address the device stability problems of PEDOT:PSS. Device stability is dramatically improved and power conversion efficiency is slightly improved in P3HT:PC60BM model system according to the ISOS-D-1 protocol. In order to understand this phenomenon, time-dependent photocurrent-voltage (J-V) measurements are conducted for device stability combined with atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and ultraviolet photoelectron spectroscopy (UPS) studies.

AB - In recent years, alternatives to PEDOT:PSS, which is used in organic light-emitting diodes and polymer solar cells (PSCs), have been actively researched due to its disadvantages in terms of device stability. Nevertheless, PEDOT:PSS is still one of most powerful materials due to its good conductivity, low-temperature processability, and suitable work function that is well-matched with the HOMO energy levels of most donor polymers. In this study, an ultra-thin tungsten oxide/PEDOT:PSS hybrid hole extraction layer (H-HEL) is designed to take advantage of the benefits of PEDOT:PSS and address the device stability problems of PEDOT:PSS. Device stability is dramatically improved and power conversion efficiency is slightly improved in P3HT:PC60BM model system according to the ISOS-D-1 protocol. In order to understand this phenomenon, time-dependent photocurrent-voltage (J-V) measurements are conducted for device stability combined with atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and ultraviolet photoelectron spectroscopy (UPS) studies.

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Tungsten oxide/PEDOT:PSS hybrid cascade hole extraction layer for polymer solar cells with enhanced long-term stability and power conversion efficiency

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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