Vertical phase separation in poly(3-hexylthiophene): Fullerene derivative blends and its advantage for inverted structure solar cells

Zheng Xu; Li Min Chen; Guanwen Yang; Chun Hao Huang; Jianhui Hou; Yue Wu; Gang Li; Chain Shu Hsu; Yang Yang

doi:10.1002/adfm.200801286

Vertical phase separation in poly(3-hexylthiophene): Fullerene derivative blends and its advantage for inverted structure solar cells

Zheng Xu, Li Min Chen, Guanwen Yang, Chun Hao Huang, Jianhui Hou, Yue Wu, Gang Li, Chain Shu Hsu, Yang Yang

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

653 Citations (Scopus)

Abstract

A method which enables the investigation ofthe buried interfaces without altering the properties ofthe polymer films is used to study vertical phase separation of spin-coated poly(3-hexylthiophene) (P3HT):fullerene derivative blends. X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM) analysis reveals the P3HTenrichment atthefree (air) surfaces and abundance offullerene derivatives at the organic/substrate interfaces. The vertical phase separation is attributed to the surface energy difference ofthe components and their interactions with the substrates. This inhomogeneous distribution ofthe donor and acceptor components significantly affects photovoltaic device performance and makes the inverted device structure a promising choice. KGaA, Weinheim.

Original language	English
Pages (from-to)	1227-1234
Number of pages	8
Journal	Advanced Functional Materials
Volume	19
Issue number	8
DOIs	https://doi.org/10.1002/adfm.200801286
Publication status	Published - 23 Apr 2009
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Condensed Matter Physics
Electrochemistry

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10.1002/adfm.200801286

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abstract = "A method which enables the investigation ofthe buried interfaces without altering the properties ofthe polymer films is used to study vertical phase separation of spin-coated poly(3-hexylthiophene) (P3HT):fullerene derivative blends. X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM) analysis reveals the P3HTenrichment atthefree (air) surfaces and abundance offullerene derivatives at the organic/substrate interfaces. The vertical phase separation is attributed to the surface energy difference ofthe components and their interactions with the substrates. This inhomogeneous distribution ofthe donor and acceptor components significantly affects photovoltaic device performance and makes the inverted device structure a promising choice. KGaA, Weinheim.",

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T1 - Vertical phase separation in poly(3-hexylthiophene): Fullerene derivative blends and its advantage for inverted structure solar cells

AU - Xu, Zheng

AU - Chen, Li Min

AU - Yang, Guanwen

AU - Huang, Chun Hao

AU - Hou, Jianhui

AU - Wu, Yue

AU - Li, Gang

AU - Hsu, Chain Shu

AU - Yang, Yang

PY - 2009/4/23

Y1 - 2009/4/23

N2 - A method which enables the investigation ofthe buried interfaces without altering the properties ofthe polymer films is used to study vertical phase separation of spin-coated poly(3-hexylthiophene) (P3HT):fullerene derivative blends. X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM) analysis reveals the P3HTenrichment atthefree (air) surfaces and abundance offullerene derivatives at the organic/substrate interfaces. The vertical phase separation is attributed to the surface energy difference ofthe components and their interactions with the substrates. This inhomogeneous distribution ofthe donor and acceptor components significantly affects photovoltaic device performance and makes the inverted device structure a promising choice. KGaA, Weinheim.

AB - A method which enables the investigation ofthe buried interfaces without altering the properties ofthe polymer films is used to study vertical phase separation of spin-coated poly(3-hexylthiophene) (P3HT):fullerene derivative blends. X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM) analysis reveals the P3HTenrichment atthefree (air) surfaces and abundance offullerene derivatives at the organic/substrate interfaces. The vertical phase separation is attributed to the surface energy difference ofthe components and their interactions with the substrates. This inhomogeneous distribution ofthe donor and acceptor components significantly affects photovoltaic device performance and makes the inverted device structure a promising choice. KGaA, Weinheim.

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Vertical phase separation in poly(3-hexylthiophene): Fullerene derivative blends and its advantage for inverted structure solar cells

Abstract

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