Towards high efficiency solution processable inverted bulk heterojunction polymer solar cells using modified indium tin oxide cathode

Xiaohong Chen; Jiaxiang Yang; Lim Yi Xuan Candy Haley; Jiong Lu; Furong Zhu; Kian Ping Loh

doi:10.1016/j.orgel.2010.09.011

Towards high efficiency solution processable inverted bulk heterojunction polymer solar cells using modified indium tin oxide cathode

Xiaohong Chen
, Jiaxiang Yang
, Lim Yi Xuan Candy Haley
, Jiong Lu
, Furong Zhu
, Kian Ping Loh

Department of Physics

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

17 Citations (Scopus)

Abstract

High efficiency inverted regioregular poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C₆₁-butyric acid methyl ester (PCBM)-based polymer solar cells (PSCs) using an indium tin oxide (ITO) cathode, modified with a solution-processed ionic liquid-functionalized carbon nanoparticles (ILCNs) layer, was demonstrated. ILCNs-modified ITO cathode has a very good thermal stability and a superior surface electronic property suited for application in polymer solar cells. A power conversion efficiency (PCE) of 3.2% was obtained for inverted PSCs measured under AM1.5G illumination of 100 mW/cm², which is comparable to PCE of a reference P3HT:PCBM-based solar cell having a conventional structure. There was almost no deterioration in the performance of inverted PSCs that were aged over a post-annealing temperature range from 100 to 200 °C. The work function of ILCNs-modified ITO cathode annealed at different temperatures was also measured using ultraviolet photoelectron spectroscopy. It was found that the work function of 4.4 eV, measured for a bare ITO electrode, decreased to 3.8 eV when it was modified with ILCNs, and was not dependent on the post-annealing temperature.

Original language	English
Pages (from-to)	1942-1946
Number of pages	5
Journal	Organic Electronics
Volume	11
Issue number	12
DOIs	https://doi.org/10.1016/j.orgel.2010.09.011
Publication status	Published - Dec 2010

User-Defined Keywords

Carbon nanoparticles
Inverted bulk heterojunction polymer solar cells
ITO cathode

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10.1016/j.orgel.2010.09.011

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title = "Towards high efficiency solution processable inverted bulk heterojunction polymer solar cells using modified indium tin oxide cathode",

abstract = "High efficiency inverted regioregular poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM)-based polymer solar cells (PSCs) using an indium tin oxide (ITO) cathode, modified with a solution-processed ionic liquid-functionalized carbon nanoparticles (ILCNs) layer, was demonstrated. ILCNs-modified ITO cathode has a very good thermal stability and a superior surface electronic property suited for application in polymer solar cells. A power conversion efficiency (PCE) of 3.2\% was obtained for inverted PSCs measured under AM1.5G illumination of 100 mW/cm2, which is comparable to PCE of a reference P3HT:PCBM-based solar cell having a conventional structure. There was almost no deterioration in the performance of inverted PSCs that were aged over a post-annealing temperature range from 100 to 200 °C. The work function of ILCNs-modified ITO cathode annealed at different temperatures was also measured using ultraviolet photoelectron spectroscopy. It was found that the work function of 4.4 eV, measured for a bare ITO electrode, decreased to 3.8 eV when it was modified with ILCNs, and was not dependent on the post-annealing temperature.",

keywords = "Carbon nanoparticles, Inverted bulk heterojunction polymer solar cells, ITO cathode",

author = "Xiaohong Chen and Jiaxiang Yang and Haley, \{Lim Yi Xuan Candy\} and Jiong Lu and Furong Zhu and Loh, \{Kian Ping\}",

note = "Funding Information: The authors acknowledge financial support from the NRF-CRP grant “Graphene and Related Materials and Devices R-143-000-360-281”.",

year = "2010",

month = dec,

doi = "10.1016/j.orgel.2010.09.011",

language = "English",

volume = "11",

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journal = "Organic Electronics",

issn = "1566-1199",

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TY - JOUR

T1 - Towards high efficiency solution processable inverted bulk heterojunction polymer solar cells using modified indium tin oxide cathode

AU - Chen, Xiaohong

AU - Yang, Jiaxiang

AU - Haley, Lim Yi Xuan Candy

AU - Lu, Jiong

AU - Zhu, Furong

AU - Loh, Kian Ping

N1 - Funding Information: The authors acknowledge financial support from the NRF-CRP grant “Graphene and Related Materials and Devices R-143-000-360-281”.

PY - 2010/12

Y1 - 2010/12

N2 - High efficiency inverted regioregular poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM)-based polymer solar cells (PSCs) using an indium tin oxide (ITO) cathode, modified with a solution-processed ionic liquid-functionalized carbon nanoparticles (ILCNs) layer, was demonstrated. ILCNs-modified ITO cathode has a very good thermal stability and a superior surface electronic property suited for application in polymer solar cells. A power conversion efficiency (PCE) of 3.2% was obtained for inverted PSCs measured under AM1.5G illumination of 100 mW/cm2, which is comparable to PCE of a reference P3HT:PCBM-based solar cell having a conventional structure. There was almost no deterioration in the performance of inverted PSCs that were aged over a post-annealing temperature range from 100 to 200 °C. The work function of ILCNs-modified ITO cathode annealed at different temperatures was also measured using ultraviolet photoelectron spectroscopy. It was found that the work function of 4.4 eV, measured for a bare ITO electrode, decreased to 3.8 eV when it was modified with ILCNs, and was not dependent on the post-annealing temperature.

AB - High efficiency inverted regioregular poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM)-based polymer solar cells (PSCs) using an indium tin oxide (ITO) cathode, modified with a solution-processed ionic liquid-functionalized carbon nanoparticles (ILCNs) layer, was demonstrated. ILCNs-modified ITO cathode has a very good thermal stability and a superior surface electronic property suited for application in polymer solar cells. A power conversion efficiency (PCE) of 3.2% was obtained for inverted PSCs measured under AM1.5G illumination of 100 mW/cm2, which is comparable to PCE of a reference P3HT:PCBM-based solar cell having a conventional structure. There was almost no deterioration in the performance of inverted PSCs that were aged over a post-annealing temperature range from 100 to 200 °C. The work function of ILCNs-modified ITO cathode annealed at different temperatures was also measured using ultraviolet photoelectron spectroscopy. It was found that the work function of 4.4 eV, measured for a bare ITO electrode, decreased to 3.8 eV when it was modified with ILCNs, and was not dependent on the post-annealing temperature.

KW - Carbon nanoparticles

KW - Inverted bulk heterojunction polymer solar cells

KW - ITO cathode

UR - https://www.scopus.com/pages/publications/77957320552

U2 - 10.1016/j.orgel.2010.09.011

DO - 10.1016/j.orgel.2010.09.011

M3 - Journal article

AN - SCOPUS:77957320552

SN - 1566-1199

VL - 11

SP - 1942

EP - 1946

JO - Organic Electronics

JF - Organic Electronics

IS - 12

ER -

Towards high efficiency solution processable inverted bulk heterojunction polymer solar cells using modified indium tin oxide cathode

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