Energy level alignment of poly(3-hexylthiophene): [6,6]-phenyl C61butyric acid methyl ester bulk heterojunction

Zheng Xu; Li Min Chen; Mei Hsin Chen; Gang Li; Yang Yang

doi:10.1063/1.3163056

Energy level alignment of poly(3-hexylthiophene): [6,6]-phenyl C₆₁butyric acid methyl ester bulk heterojunction

Zheng Xu, Li Min Chen, Mei Hsin Chen, Gang Li, Yang Yang

Research output: Journal article publication › Journal article › Academic research › peer-review

155 Citations (Scopus)

Abstract

Photoelectron spectroscopy was used to investigate poly(3-hexylthiophene) (P3HT), [6,6]-phenyl C61butyric acid methyl ester (PCBM), and their blends on various conductive substrates. The study shows a P3HT-rich layer at the top of the P3HT:PCBM blend films. The energy level alignment of the top P3HT changes with the work function of the substrate and the PCBM concentration at the bottom surface of the blend film. The results can be explained using the integer charge transfer model.

Original language	English
Article number	013301
Journal	Applied Physics Letters
Volume	95
Issue number	1
DOIs	https://doi.org/10.1063/1.3163056
Publication status	Published - 20 Jul 2009
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3163056

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title = "Energy level alignment of poly(3-hexylthiophene): [6,6]-phenyl C61butyric acid methyl ester bulk heterojunction",

abstract = "Photoelectron spectroscopy was used to investigate poly(3-hexylthiophene) (P3HT), [6,6]-phenyl C61butyric acid methyl ester (PCBM), and their blends on various conductive substrates. The study shows a P3HT-rich layer at the top of the P3HT:PCBM blend films. The energy level alignment of the top P3HT changes with the work function of the substrate and the PCBM concentration at the bottom surface of the blend film. The results can be explained using the integer charge transfer model.",

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AU - Xu, Zheng

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AU - Li, Gang

AU - Yang, Yang

PY - 2009/7/20

Y1 - 2009/7/20

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AB - Photoelectron spectroscopy was used to investigate poly(3-hexylthiophene) (P3HT), [6,6]-phenyl C61butyric acid methyl ester (PCBM), and their blends on various conductive substrates. The study shows a P3HT-rich layer at the top of the P3HT:PCBM blend films. The energy level alignment of the top P3HT changes with the work function of the substrate and the PCBM concentration at the bottom surface of the blend film. The results can be explained using the integer charge transfer model.

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Energy level alignment of poly(3-hexylthiophene): [6,6]-phenyl C₆₁butyric acid methyl ester bulk heterojunction

Abstract

ASJC Scopus subject areas

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