Direct comparison of charge transport and electronic traps in polymer-fullerene blends under dark and illuminated conditions

Yan Hui Lou; Lei Zhang; Mei Feng Xu; Zhao Kui Wang; Shigeki Naka; Hiroyuki Okada; Liang Sheng Liao

doi:10.1016/j.orgel.2013.11.001

Direct comparison of charge transport and electronic traps in polymer-fullerene blends under dark and illuminated conditions

Yan Hui Lou, Lei Zhang, Mei Feng Xu, Zhao Kui Wang^*, Shigeki Naka, Hiroyuki Okada, Liang Sheng Liao

^*Corresponding author for this work

Electric and Electronic Engineering

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

17 Scopus citations

Abstract

A direct comparison of charge transport and electronic traps in representative polymer-fullerene blend, poly (3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61 (PCBM), is carried out in dark and illuminated conditions based on the measurements of temperature-dependent current-voltage characteristics. In dark condition, the charge transport presents a transition from Ohmic to trap-limited current. While the trap-filled space charge limited current is observed under illumination at the same applied bias. From evaluations of trap density and energy distribution by a differential method, it is reveal that the diverse charge transport in dark and illuminated conditions is mainly caused by the different trap states distribution, which strongly affects the space charges and the electrical field in P3HT: PCBM blends.

Original language	English
Pages (from-to)	299-305
Number of pages	7
Journal	Organic Electronics
Volume	15
Issue number	1
DOIs	https://doi.org/10.1016/j.orgel.2013.11.001
State	Published - 2014/01

Keywords

Charge transport
Dark and illumination
Electrical traps
Polymer-fullerene

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Chemistry
Biomaterials
Condensed Matter Physics
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.orgel.2013.11.001

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@article{774ec2757c674d90b017996affb82173,

title = "Direct comparison of charge transport and electronic traps in polymer-fullerene blends under dark and illuminated conditions",

abstract = "A direct comparison of charge transport and electronic traps in representative polymer-fullerene blend, poly (3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61 (PCBM), is carried out in dark and illuminated conditions based on the measurements of temperature-dependent current-voltage characteristics. In dark condition, the charge transport presents a transition from Ohmic to trap-limited current. While the trap-filled space charge limited current is observed under illumination at the same applied bias. From evaluations of trap density and energy distribution by a differential method, it is reveal that the diverse charge transport in dark and illuminated conditions is mainly caused by the different trap states distribution, which strongly affects the space charges and the electrical field in P3HT: PCBM blends.",

keywords = "Charge transport, Dark and illumination, Electrical traps, Polymer-fullerene",

author = "Lou, {Yan Hui} and Lei Zhang and Xu, {Mei Feng} and Wang, {Zhao Kui} and Shigeki Naka and Hiroyuki Okada and Liao, {Liang Sheng}",

note = "Funding Information: We acknowledge financial support from the Natural Science Foundation of China (Nos. 61036009 , 61177016 , 21161160446 , 61307036 and 61307037 ), the National High-Tech Research Development Program (No. 2011AA03A110 ), the Natural Science Foundation of Jiangsu Province (Nos. BK2010003 and BK20130288 ). This is also a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD). This work is also supported from the Japan Society for the Promotion of Science (JSPS) Program (KO 240206). ",

year = "2014",

month = jan,

doi = "10.1016/j.orgel.2013.11.001",

language = "英語",

volume = "15",

pages = "299--305",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Direct comparison of charge transport and electronic traps in polymer-fullerene blends under dark and illuminated conditions

AU - Lou, Yan Hui

AU - Zhang, Lei

AU - Xu, Mei Feng

AU - Wang, Zhao Kui

AU - Naka, Shigeki

AU - Okada, Hiroyuki

AU - Liao, Liang Sheng

N1 - Funding Information: We acknowledge financial support from the Natural Science Foundation of China (Nos. 61036009 , 61177016 , 21161160446 , 61307036 and 61307037 ), the National High-Tech Research Development Program (No. 2011AA03A110 ), the Natural Science Foundation of Jiangsu Province (Nos. BK2010003 and BK20130288 ). This is also a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD). This work is also supported from the Japan Society for the Promotion of Science (JSPS) Program (KO 240206).

PY - 2014/1

Y1 - 2014/1

N2 - A direct comparison of charge transport and electronic traps in representative polymer-fullerene blend, poly (3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61 (PCBM), is carried out in dark and illuminated conditions based on the measurements of temperature-dependent current-voltage characteristics. In dark condition, the charge transport presents a transition from Ohmic to trap-limited current. While the trap-filled space charge limited current is observed under illumination at the same applied bias. From evaluations of trap density and energy distribution by a differential method, it is reveal that the diverse charge transport in dark and illuminated conditions is mainly caused by the different trap states distribution, which strongly affects the space charges and the electrical field in P3HT: PCBM blends.

AB - A direct comparison of charge transport and electronic traps in representative polymer-fullerene blend, poly (3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61 (PCBM), is carried out in dark and illuminated conditions based on the measurements of temperature-dependent current-voltage characteristics. In dark condition, the charge transport presents a transition from Ohmic to trap-limited current. While the trap-filled space charge limited current is observed under illumination at the same applied bias. From evaluations of trap density and energy distribution by a differential method, it is reveal that the diverse charge transport in dark and illuminated conditions is mainly caused by the different trap states distribution, which strongly affects the space charges and the electrical field in P3HT: PCBM blends.

KW - Charge transport

KW - Dark and illumination

KW - Electrical traps

KW - Polymer-fullerene

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JO - Organic Electronics

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ER -

Direct comparison of charge transport and electronic traps in polymer-fullerene blends under dark and illuminated conditions

Abstract

Keywords

ASJC Scopus subject areas

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