Nano structure evolution in P3HT:PC61BM blend films due to the effects of thermal annealing or by adding solvent

Xing Fan; Su Ling Zhao; Yu Chen; Jie Zhang; Qian Qian Yang; Wei Gong; Meng Yao Yuan; Zheng Xu; Xu Rong Xu

doi:10.1088/1674-1056/24/7/078401

Nano structure evolution in P3HT:PC₆₁BM blend films due to the effects of thermal annealing or by adding solvent

Xing Fan, Su Ling Zhao^*, Yu Chen, Jie Zhang, Qian Qian Yang, Wei Gong, Meng Yao Yuan, Zheng Xu, Xu Rong Xu

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

Crystallographic dynamics of blend films of regioregular poly(3-hexylthiophene) (P3HT) mixed with [6-6-]-phenyl-C61-butyric acid methyl ester (PC₆₁BM) treated by thermal annealing or by adding solvent 1,8-diiodooctane (DIO) are characterized by 2D-grazing incidence x-ray diffraction (2D-GIXRD). The results show that the P3HT chains are primarily oriented with the thiophene ring edge-on to the substrate, with a small fraction of chains oriented plane-on. The interplanar spacing becomes narrow after being treated by DIO, and the coherence length of the P3HT crystallites increases after being treated by thermal annealing or DIO, which is accompanied by a change in the orientation angle of the P3HT lamellae. The increased ordering of P3HT packing induced by thermal annealing or adding DIO contributes to enhanced photovoltaic performance.

Original language	English
Article number	078401
Journal	Chinese Physics B
Volume	24
Issue number	7
DOIs	https://doi.org/10.1088/1674-1056/24/7/078401
Publication status	Published - 1 Jul 2015
Externally published	Yes

Keywords

additive
grazing incidence x-ray diffraction (GIXRD)
morphology
Polymer solar cell (PSC)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1088/1674-1056/24/7/078401

Cite this

@article{b793d62aadb44603905412bdfae66df7,

title = "Nano structure evolution in P3HT:PC61BM blend films due to the effects of thermal annealing or by adding solvent",

abstract = "Crystallographic dynamics of blend films of regioregular poly(3-hexylthiophene) (P3HT) mixed with [6-6-]-phenyl-C61-butyric acid methyl ester (PC61BM) treated by thermal annealing or by adding solvent 1,8-diiodooctane (DIO) are characterized by 2D-grazing incidence x-ray diffraction (2D-GIXRD). The results show that the P3HT chains are primarily oriented with the thiophene ring edge-on to the substrate, with a small fraction of chains oriented plane-on. The interplanar spacing becomes narrow after being treated by DIO, and the coherence length of the P3HT crystallites increases after being treated by thermal annealing or DIO, which is accompanied by a change in the orientation angle of the P3HT lamellae. The increased ordering of P3HT packing induced by thermal annealing or adding DIO contributes to enhanced photovoltaic performance.",

keywords = "additive, grazing incidence x-ray diffraction (GIXRD), morphology, Polymer solar cell (PSC)",

author = "Xing Fan and Zhao, {Su Ling} and Yu Chen and Jie Zhang and Yang, {Qian Qian} and Wei Gong and Yuan, {Meng Yao} and Zheng Xu and Xu, {Xu Rong}",

note = "Publisher Copyright: {\textcopyright} 2015 Chinese Physical Society and IOP Publishing Ltd.",

year = "2015",

month = jul,

day = "1",

doi = "10.1088/1674-1056/24/7/078401",

language = "English",

volume = "24",

journal = "Chinese Physics B",

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TY - JOUR

T1 - Nano structure evolution in P3HT:PC61BM blend films due to the effects of thermal annealing or by adding solvent

AU - Fan, Xing

AU - Zhao, Su Ling

AU - Chen, Yu

AU - Zhang, Jie

AU - Yang, Qian Qian

AU - Gong, Wei

AU - Yuan, Meng Yao

AU - Xu, Zheng

AU - Xu, Xu Rong

PY - 2015/7/1

Y1 - 2015/7/1

N2 - Crystallographic dynamics of blend films of regioregular poly(3-hexylthiophene) (P3HT) mixed with [6-6-]-phenyl-C61-butyric acid methyl ester (PC61BM) treated by thermal annealing or by adding solvent 1,8-diiodooctane (DIO) are characterized by 2D-grazing incidence x-ray diffraction (2D-GIXRD). The results show that the P3HT chains are primarily oriented with the thiophene ring edge-on to the substrate, with a small fraction of chains oriented plane-on. The interplanar spacing becomes narrow after being treated by DIO, and the coherence length of the P3HT crystallites increases after being treated by thermal annealing or DIO, which is accompanied by a change in the orientation angle of the P3HT lamellae. The increased ordering of P3HT packing induced by thermal annealing or adding DIO contributes to enhanced photovoltaic performance.

AB - Crystallographic dynamics of blend films of regioregular poly(3-hexylthiophene) (P3HT) mixed with [6-6-]-phenyl-C61-butyric acid methyl ester (PC61BM) treated by thermal annealing or by adding solvent 1,8-diiodooctane (DIO) are characterized by 2D-grazing incidence x-ray diffraction (2D-GIXRD). The results show that the P3HT chains are primarily oriented with the thiophene ring edge-on to the substrate, with a small fraction of chains oriented plane-on. The interplanar spacing becomes narrow after being treated by DIO, and the coherence length of the P3HT crystallites increases after being treated by thermal annealing or DIO, which is accompanied by a change in the orientation angle of the P3HT lamellae. The increased ordering of P3HT packing induced by thermal annealing or adding DIO contributes to enhanced photovoltaic performance.

KW - additive

KW - grazing incidence x-ray diffraction (GIXRD)

KW - morphology

KW - Polymer solar cell (PSC)

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