A Strategy to Design a Donor-π-Acceptor Polymeric Hole Conductor for an Efficient Perovskite Solar Cell

Guan Woo Kim; Jinseck Kim; Gang Young Lee; Gyeongho Kang; Jaechul Lee; Taiho Park

doi:10.1002/aenm.201500471

A Strategy to Design a Donor-π-Acceptor Polymeric Hole Conductor for an Efficient Perovskite Solar Cell

Guan Woo Kim
, Jinseck Kim
, Gang Young Lee
, Gyeongho Kang
, Jaechul Lee
, Taiho Park^*

^*Corresponding author for this work

Department of Polymer -Nano Science &Technology

Pohang University of Science and Technology
LG Corporation

Research output: Contribution to journal › Journal article › peer-review

65 Scopus citations

Abstract

A strategy for developing a novel donor-π-acceptor conducting polymeric hole transport material (TTB-TTQ) based on thiophene and benzothiadiazole as an alternative to spiro-MeOTAD is reported. The resulting polymer is highly soluble in many organic solvents and exhibits excellent film formability. The addition of lithium bis(trifluoromethanesulfonyl) imide salt and tert-butylpyridine to TTB-TTQ results in a rough film surface with a fibril structure and improved charge transport. A perovskite solar cell with the highest power conversion efficiency (η) yet achieved in such cells, 14.1%, which is 22.6% greater than that of a device employing a spiro-MeOTAD is demonstrated. This strategy provides a novel approach to developing solar cell materials for efficient perovskite solar cells.

Original language	English
Article number	1500471
Journal	Advanced Energy Materials
Volume	5
Issue number	14
DOIs	https://doi.org/10.1002/aenm.201500471
State	Published - 2015.07.1

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

conducting polymers
high solubility
hole transport materials
perovskite solar cells
polymer design

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10.1002/aenm.201500471

Cite this

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title = "A Strategy to Design a Donor-π-Acceptor Polymeric Hole Conductor for an Efficient Perovskite Solar Cell",

abstract = "A strategy for developing a novel donor-π-acceptor conducting polymeric hole transport material (TTB-TTQ) based on thiophene and benzothiadiazole as an alternative to spiro-MeOTAD is reported. The resulting polymer is highly soluble in many organic solvents and exhibits excellent film formability. The addition of lithium bis(trifluoromethanesulfonyl) imide salt and tert-butylpyridine to TTB-TTQ results in a rough film surface with a fibril structure and improved charge transport. A perovskite solar cell with the highest power conversion efficiency (η) yet achieved in such cells, 14.1\%, which is 22.6\% greater than that of a device employing a spiro-MeOTAD is demonstrated. This strategy provides a novel approach to developing solar cell materials for efficient perovskite solar cells.",

keywords = "conducting polymers, high solubility, hole transport materials, perovskite solar cells, polymer design",

author = "Kim, \{Guan Woo\} and Jinseck Kim and Lee, \{Gang Young\} and Gyeongho Kang and Jaechul Lee and Taiho Park",

note = "Publisher Copyright: {\textcopyright} 2015 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

year = "2015",

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doi = "10.1002/aenm.201500471",

language = "English",

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journal = "Advanced Energy Materials",

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T1 - A Strategy to Design a Donor-π-Acceptor Polymeric Hole Conductor for an Efficient Perovskite Solar Cell

AU - Kim, Guan Woo

AU - Kim, Jinseck

AU - Lee, Gang Young

AU - Kang, Gyeongho

AU - Lee, Jaechul

AU - Park, Taiho

PY - 2015/7/1

Y1 - 2015/7/1

N2 - A strategy for developing a novel donor-π-acceptor conducting polymeric hole transport material (TTB-TTQ) based on thiophene and benzothiadiazole as an alternative to spiro-MeOTAD is reported. The resulting polymer is highly soluble in many organic solvents and exhibits excellent film formability. The addition of lithium bis(trifluoromethanesulfonyl) imide salt and tert-butylpyridine to TTB-TTQ results in a rough film surface with a fibril structure and improved charge transport. A perovskite solar cell with the highest power conversion efficiency (η) yet achieved in such cells, 14.1%, which is 22.6% greater than that of a device employing a spiro-MeOTAD is demonstrated. This strategy provides a novel approach to developing solar cell materials for efficient perovskite solar cells.

AB - A strategy for developing a novel donor-π-acceptor conducting polymeric hole transport material (TTB-TTQ) based on thiophene and benzothiadiazole as an alternative to spiro-MeOTAD is reported. The resulting polymer is highly soluble in many organic solvents and exhibits excellent film formability. The addition of lithium bis(trifluoromethanesulfonyl) imide salt and tert-butylpyridine to TTB-TTQ results in a rough film surface with a fibril structure and improved charge transport. A perovskite solar cell with the highest power conversion efficiency (η) yet achieved in such cells, 14.1%, which is 22.6% greater than that of a device employing a spiro-MeOTAD is demonstrated. This strategy provides a novel approach to developing solar cell materials for efficient perovskite solar cells.

KW - conducting polymers

KW - high solubility

KW - hole transport materials

KW - perovskite solar cells

KW - polymer design

UR - https://www.scopus.com/pages/publications/84937694355

U2 - 10.1002/aenm.201500471

DO - 10.1002/aenm.201500471

M3 - Journal article

AN - SCOPUS:84937694355

SN - 1614-6832

VL - 5

JO - Advanced Energy Materials

JF - Advanced Energy Materials

IS - 14

M1 - 1500471

ER -

A Strategy to Design a Donor-π-Acceptor Polymeric Hole Conductor for an Efficient Perovskite Solar Cell

Abstract

UN SDGs

Keywords

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