Interfacial Engineering of CdO-CdSe 3D Microarchitectures with in situ Photopolymerized PEDOT for an Enhanced Photovoltaic Performance

Iseul Lim; Dipak V. Shinde; Supriya A. Patil; Do Young Ahn; Wonjoo Lee; Nabeen K. Shrestha; Joong Kee Lee; Sung Hwan Han

doi:10.1111/php.12429

Interfacial Engineering of CdO-CdSe 3D Microarchitectures with in situ Photopolymerized PEDOT for an Enhanced Photovoltaic Performance

Iseul Lim, Dipak V. Shinde, Supriya A. Patil, Do Young Ahn, Wonjoo Lee, Nabeen K. Shrestha, Joong Kee Lee, Sung Hwan Han

Division of System Semiconductor

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

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Abstract

In the present work, porous 3D CdO-microstructured electrode obtained by pyrolysis of 3D CdCO₃ microstructures is self-sensitized with CdSe using an ion exchange reaction. After sensitization, an interfacial treatment of the CdO-CdSe interface is performed by depositing a thin film of PEDOT using a photoinduce polymerization route. The microstructured electrode before and after interfacial treatment is characterized using field-emission scanning microscope, energy dispersive X-ray analyzer, contact angle measurement, UV-Visible absorption spectrophotometer and X-ray photoelectron spectrometer. After constructing a liquid junction solar cell with a Pt counter electrode, the photovoltaic performance and interfacial charge transfer kinetics across the CdO-CdSe interface before and after PEDOT treatment are investigated. The results exhibit an improved interfacial charge-transfer resistance after the PEDOT treatment, which leads to enhance the short-circuit current by 15.81% and the power conversion efficiency by 19.82%.

Original language	English
Pages (from-to)	780-785
Number of pages	6
Journal	Photochemistry and Photobiology
Volume	91
Issue number	4
DOIs	https://doi.org/10.1111/php.12429
State	Published - 1 Jul 2015

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title = "Interfacial Engineering of CdO-CdSe 3D Microarchitectures with in situ Photopolymerized PEDOT for an Enhanced Photovoltaic Performance",

abstract = "In the present work, porous 3D CdO-microstructured electrode obtained by pyrolysis of 3D CdCO3 microstructures is self-sensitized with CdSe using an ion exchange reaction. After sensitization, an interfacial treatment of the CdO-CdSe interface is performed by depositing a thin film of PEDOT using a photoinduce polymerization route. The microstructured electrode before and after interfacial treatment is characterized using field-emission scanning microscope, energy dispersive X-ray analyzer, contact angle measurement, UV-Visible absorption spectrophotometer and X-ray photoelectron spectrometer. After constructing a liquid junction solar cell with a Pt counter electrode, the photovoltaic performance and interfacial charge transfer kinetics across the CdO-CdSe interface before and after PEDOT treatment are investigated. The results exhibit an improved interfacial charge-transfer resistance after the PEDOT treatment, which leads to enhance the short-circuit current by 15.81% and the power conversion efficiency by 19.82%.",

author = "Iseul Lim and Shinde, {Dipak V.} and Patil, {Supriya A.} and Ahn, {Do Young} and Wonjoo Lee and Shrestha, {Nabeen K.} and Lee, {Joong Kee} and Han, {Sung Hwan}",

note = "Publisher Copyright: {\textcopyright} 2015 The American Society of Photobiology.",

year = "2015",

month = jul,

day = "1",

doi = "10.1111/php.12429",

language = "English",

volume = "91",

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journal = "Photochemistry and Photobiology",

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TY - JOUR

T1 - Interfacial Engineering of CdO-CdSe 3D Microarchitectures with in situ Photopolymerized PEDOT for an Enhanced Photovoltaic Performance

AU - Lim, Iseul

AU - Shinde, Dipak V.

AU - Patil, Supriya A.

AU - Ahn, Do Young

AU - Lee, Wonjoo

AU - Shrestha, Nabeen K.

AU - Lee, Joong Kee

AU - Han, Sung Hwan

PY - 2015/7/1

Y1 - 2015/7/1

N2 - In the present work, porous 3D CdO-microstructured electrode obtained by pyrolysis of 3D CdCO3 microstructures is self-sensitized with CdSe using an ion exchange reaction. After sensitization, an interfacial treatment of the CdO-CdSe interface is performed by depositing a thin film of PEDOT using a photoinduce polymerization route. The microstructured electrode before and after interfacial treatment is characterized using field-emission scanning microscope, energy dispersive X-ray analyzer, contact angle measurement, UV-Visible absorption spectrophotometer and X-ray photoelectron spectrometer. After constructing a liquid junction solar cell with a Pt counter electrode, the photovoltaic performance and interfacial charge transfer kinetics across the CdO-CdSe interface before and after PEDOT treatment are investigated. The results exhibit an improved interfacial charge-transfer resistance after the PEDOT treatment, which leads to enhance the short-circuit current by 15.81% and the power conversion efficiency by 19.82%.

AB - In the present work, porous 3D CdO-microstructured electrode obtained by pyrolysis of 3D CdCO3 microstructures is self-sensitized with CdSe using an ion exchange reaction. After sensitization, an interfacial treatment of the CdO-CdSe interface is performed by depositing a thin film of PEDOT using a photoinduce polymerization route. The microstructured electrode before and after interfacial treatment is characterized using field-emission scanning microscope, energy dispersive X-ray analyzer, contact angle measurement, UV-Visible absorption spectrophotometer and X-ray photoelectron spectrometer. After constructing a liquid junction solar cell with a Pt counter electrode, the photovoltaic performance and interfacial charge transfer kinetics across the CdO-CdSe interface before and after PEDOT treatment are investigated. The results exhibit an improved interfacial charge-transfer resistance after the PEDOT treatment, which leads to enhance the short-circuit current by 15.81% and the power conversion efficiency by 19.82%.

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U2 - 10.1111/php.12429

DO - 10.1111/php.12429

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SN - 0031-8655

VL - 91

SP - 780

EP - 785

JO - Photochemistry and Photobiology

JF - Photochemistry and Photobiology

IS - 4

ER -

Interfacial Engineering of CdO-CdSe 3D Microarchitectures with in situ Photopolymerized PEDOT for an Enhanced Photovoltaic Performance

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