Capillary force induced phase separation in P3HT: PCBM thin films during selective solvent vapor annealing

Yi Yuan; Junhui Wu; Mingyuan Gao; Zhe Wang

doi:10.1016/j.matlet.2015.11.030

Capillary force induced phase separation in P3HT: PCBM thin films during selective solvent vapor annealing

Yi Yuan
, Junhui Wu
, Mingyuan Gao
, Zhe Wang^*

^*Corresponding author for this work

School of Chemistry

Beihang University

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

5 Scopus citations

Abstract

In this paper, we report an efficient method for the phase separation of thin films composed of organic semiconductors. The phase behaviors of P3HT and PCBM blended films in confined geometries have been investigated under solvent selective vapor annealing. Anisole was used to generate the solvent vapor due to its differential activation of P3HT and PCBM. After the anisole vapor interacted with the mixed film, the molecular chains of the PCBM preferentially diffused and aggregated as a result of the capillary forces to form an ordered arrangement on the films surface. Ordered micron- and nano-scale phase separation structures were obtained using this methodology.

Original language	English
Pages (from-to)	325-328
Number of pages	4
Journal	Materials Letters
Volume	164
DOIs	https://doi.org/10.1016/j.matlet.2015.11.030
State	Published - 1 Feb 2016

Keywords

Organic semiconductors
P3HT: PCBM
Phase separation structure
Thin films

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10.1016/j.matlet.2015.11.030

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title = "Capillary force induced phase separation in P3HT: PCBM thin films during selective solvent vapor annealing",

abstract = "In this paper, we report an efficient method for the phase separation of thin films composed of organic semiconductors. The phase behaviors of P3HT and PCBM blended films in confined geometries have been investigated under solvent selective vapor annealing. Anisole was used to generate the solvent vapor due to its differential activation of P3HT and PCBM. After the anisole vapor interacted with the mixed film, the molecular chains of the PCBM preferentially diffused and aggregated as a result of the capillary forces to form an ordered arrangement on the films surface. Ordered micron- and nano-scale phase separation structures were obtained using this methodology.",

keywords = "Organic semiconductors, P3HT: PCBM, Phase separation structure, Thin films",

author = "Yi Yuan and Junhui Wu and Mingyuan Gao and Zhe Wang",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2016",

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doi = "10.1016/j.matlet.2015.11.030",

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TY - JOUR

T1 - Capillary force induced phase separation in P3HT

T2 - PCBM thin films during selective solvent vapor annealing

AU - Yuan, Yi

AU - Wu, Junhui

AU - Gao, Mingyuan

AU - Wang, Zhe

PY - 2016/2/1

Y1 - 2016/2/1

N2 - In this paper, we report an efficient method for the phase separation of thin films composed of organic semiconductors. The phase behaviors of P3HT and PCBM blended films in confined geometries have been investigated under solvent selective vapor annealing. Anisole was used to generate the solvent vapor due to its differential activation of P3HT and PCBM. After the anisole vapor interacted with the mixed film, the molecular chains of the PCBM preferentially diffused and aggregated as a result of the capillary forces to form an ordered arrangement on the films surface. Ordered micron- and nano-scale phase separation structures were obtained using this methodology.

AB - In this paper, we report an efficient method for the phase separation of thin films composed of organic semiconductors. The phase behaviors of P3HT and PCBM blended films in confined geometries have been investigated under solvent selective vapor annealing. Anisole was used to generate the solvent vapor due to its differential activation of P3HT and PCBM. After the anisole vapor interacted with the mixed film, the molecular chains of the PCBM preferentially diffused and aggregated as a result of the capillary forces to form an ordered arrangement on the films surface. Ordered micron- and nano-scale phase separation structures were obtained using this methodology.

KW - Organic semiconductors

KW - P3HT: PCBM

KW - Phase separation structure

KW - Thin films

UR - https://www.scopus.com/pages/publications/84946944933

U2 - 10.1016/j.matlet.2015.11.030

DO - 10.1016/j.matlet.2015.11.030

M3 - 文章

AN - SCOPUS:84946944933

SN - 0167-577X

VL - 164

SP - 325

EP - 328

JO - Materials Letters

JF - Materials Letters

ER -

Capillary force induced phase separation in P3HT: PCBM thin films during selective solvent vapor annealing

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Keywords

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