Microwave-reduced graphene oxide for efficient and stable hole extraction layers of polymer solar cells

Namhun Kim; Guoqing Xin; Sung Min Cho; Changhyun Pang; Heeyeop Chae

doi:10.1016/j.cap.2015.05.011

Microwave-reduced graphene oxide for efficient and stable hole extraction layers of polymer solar cells

Namhun Kim
, Guoqing Xin
, Sung Min Cho
, Changhyun Pang
, Heeyeop Chae

Department of Chemical Engineering

Sungkyunkwan University

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

20 Scopus citations

Abstract

Microwave-assisted reduced graphene oxide (MR-GO) layer was applied to hole extraction layer (HEL) of polymer solar cells (PSCs) and was compared with the widely used poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) in bulk hetero-junction (BHJ) solar cells. The power conversion efficiency (PCE) of 3.57% was achieved with the MR-GO layer, which is 21% higher than that of PSCs with the conventional PEDOT:PSS HEL material. This enhancement of PCE is mainly attributed to the increase of short-circuit current density originated from the hydrophobic surface of the MR-GO layer. The hydrophobic graphene oxide surface is believed to improve wetting property and physical contact of active blends. In addition, the MR-GO interfacial layer is found to show the excellent device stability in atmospheric condition. The PCE of conventional PEDOT:PSS based PSCs showed total degradation when the device was exposed to atmospheric condition for 1000 h without any encapsulation, while that of MR-GO based PSC showed over 85% of PCE.

Original language	English
Pages (from-to)	953-957
Number of pages	5
Journal	Current Applied Physics
Volume	15
Issue number	9
DOIs	https://doi.org/10.1016/j.cap.2015.05.011
State	Published - 27 May 2015

Keywords

Hole extraction layer
Microwave reduction
Polymer solar cells
Reduced graphene oxide

UN SDGs

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

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10.1016/j.cap.2015.05.011

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@article{da5139e336ab495484e81e6a1ede2edc,

title = "Microwave-reduced graphene oxide for efficient and stable hole extraction layers of polymer solar cells",

abstract = "Microwave-assisted reduced graphene oxide (MR-GO) layer was applied to hole extraction layer (HEL) of polymer solar cells (PSCs) and was compared with the widely used poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) in bulk hetero-junction (BHJ) solar cells. The power conversion efficiency (PCE) of 3.57\% was achieved with the MR-GO layer, which is 21\% higher than that of PSCs with the conventional PEDOT:PSS HEL material. This enhancement of PCE is mainly attributed to the increase of short-circuit current density originated from the hydrophobic surface of the MR-GO layer. The hydrophobic graphene oxide surface is believed to improve wetting property and physical contact of active blends. In addition, the MR-GO interfacial layer is found to show the excellent device stability in atmospheric condition. The PCE of conventional PEDOT:PSS based PSCs showed total degradation when the device was exposed to atmospheric condition for 1000 h without any encapsulation, while that of MR-GO based PSC showed over 85\% of PCE.",

keywords = "Hole extraction layer, Microwave reduction, Polymer solar cells, Reduced graphene oxide",

author = "Namhun Kim and Guoqing Xin and Cho, \{Sung Min\} and Changhyun Pang and Heeyeop Chae",

note = "Publisher Copyright: {\textcopyright} 2015 Published by Elsevier B.V.",

year = "2015",

month = may,

day = "27",

doi = "10.1016/j.cap.2015.05.011",

language = "English",

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T1 - Microwave-reduced graphene oxide for efficient and stable hole extraction layers of polymer solar cells

AU - Kim, Namhun

AU - Xin, Guoqing

AU - Cho, Sung Min

AU - Pang, Changhyun

AU - Chae, Heeyeop

PY - 2015/5/27

Y1 - 2015/5/27

N2 - Microwave-assisted reduced graphene oxide (MR-GO) layer was applied to hole extraction layer (HEL) of polymer solar cells (PSCs) and was compared with the widely used poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) in bulk hetero-junction (BHJ) solar cells. The power conversion efficiency (PCE) of 3.57% was achieved with the MR-GO layer, which is 21% higher than that of PSCs with the conventional PEDOT:PSS HEL material. This enhancement of PCE is mainly attributed to the increase of short-circuit current density originated from the hydrophobic surface of the MR-GO layer. The hydrophobic graphene oxide surface is believed to improve wetting property and physical contact of active blends. In addition, the MR-GO interfacial layer is found to show the excellent device stability in atmospheric condition. The PCE of conventional PEDOT:PSS based PSCs showed total degradation when the device was exposed to atmospheric condition for 1000 h without any encapsulation, while that of MR-GO based PSC showed over 85% of PCE.

AB - Microwave-assisted reduced graphene oxide (MR-GO) layer was applied to hole extraction layer (HEL) of polymer solar cells (PSCs) and was compared with the widely used poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) in bulk hetero-junction (BHJ) solar cells. The power conversion efficiency (PCE) of 3.57% was achieved with the MR-GO layer, which is 21% higher than that of PSCs with the conventional PEDOT:PSS HEL material. This enhancement of PCE is mainly attributed to the increase of short-circuit current density originated from the hydrophobic surface of the MR-GO layer. The hydrophobic graphene oxide surface is believed to improve wetting property and physical contact of active blends. In addition, the MR-GO interfacial layer is found to show the excellent device stability in atmospheric condition. The PCE of conventional PEDOT:PSS based PSCs showed total degradation when the device was exposed to atmospheric condition for 1000 h without any encapsulation, while that of MR-GO based PSC showed over 85% of PCE.

KW - Hole extraction layer

KW - Microwave reduction

KW - Polymer solar cells

KW - Reduced graphene oxide

UR - https://www.scopus.com/pages/publications/84930226829

U2 - 10.1016/j.cap.2015.05.011

DO - 10.1016/j.cap.2015.05.011

M3 - Article

AN - SCOPUS:84930226829

SN - 1567-1739

VL - 15

SP - 953

EP - 957

JO - Current Applied Physics

JF - Current Applied Physics

IS - 9

ER -

Microwave-reduced graphene oxide for efficient and stable hole extraction layers of polymer solar cells

Abstract

Keywords

UN SDGs

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