The crucial role of intermolecular π-π Interactions in A-D-A-type electron acceptors and their effective modulation

Bowei Gao; Huifeng Yao; Bomee Jang; Jie Zhu; Runnan Yu; Yong Cui; Fenghao Wang; Junxian Hou; Han Young Woo; Jianhui Hou

doi:10.1039/c7ta10461h

The crucial role of intermolecular π-π Interactions in A-D-A-type electron acceptors and their effective modulation

Bowei Gao, Huifeng Yao, Bomee Jang, Jie Zhu, Runnan Yu, Yong Cui, Fenghao Wang, Junxian Hou, Han Young Woo, Jianhui Hou

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

26 Citations (Scopus)

Abstract

Here, the crucial role of intermolecular π-π interactions in A-D-A-type acceptors is examined and a simple yet effective modulation method is presented. By side chain manipulation, two small molecule acceptors, IDT-C6 and IDT-PhC6, are designed and synthesized with different crystalline morphologies. Since n-hexyl side chains have less steric hindrance than hexylphenyl side chains, IDT-C6 exhibits enhanced intermolecular π-π interactions relative to IDT-PhC6. Benefiting from the improved charge transport properties of the IDT-C6-based device, a high PCE of 12.5% is recorded, whereas those of the IDT-PhC6-based device delivers a moderate PCE of just 5.6%.

Original language	English
Pages (from-to)	2664-2670
Number of pages	7
Journal	Journal of Materials Chemistry A
Volume	6
Issue number	6
DOIs	https://doi.org/10.1039/c7ta10461h
Publication status	Published - 2018

Bibliographical note

Publisher Copyright:
© 2018 The Royal Society of Chemistry.

ASJC Scopus subject areas

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

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

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10.1039/c7ta10461h

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title = "The crucial role of intermolecular π-π Interactions in A-D-A-type electron acceptors and their effective modulation",

abstract = "Here, the crucial role of intermolecular π-π interactions in A-D-A-type acceptors is examined and a simple yet effective modulation method is presented. By side chain manipulation, two small molecule acceptors, IDT-C6 and IDT-PhC6, are designed and synthesized with different crystalline morphologies. Since n-hexyl side chains have less steric hindrance than hexylphenyl side chains, IDT-C6 exhibits enhanced intermolecular π-π interactions relative to IDT-PhC6. Benefiting from the improved charge transport properties of the IDT-C6-based device, a high PCE of 12.5% is recorded, whereas those of the IDT-PhC6-based device delivers a moderate PCE of just 5.6%.",

author = "Bowei Gao and Huifeng Yao and Bomee Jang and Jie Zhu and Runnan Yu and Yong Cui and Fenghao Wang and Junxian Hou and Woo, {Han Young} and Jianhui Hou",

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doi = "10.1039/c7ta10461h",

language = "English",

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T1 - The crucial role of intermolecular π-π Interactions in A-D-A-type electron acceptors and their effective modulation

AU - Gao, Bowei

AU - Yao, Huifeng

AU - Jang, Bomee

AU - Zhu, Jie

AU - Yu, Runnan

AU - Cui, Yong

AU - Wang, Fenghao

AU - Hou, Junxian

AU - Woo, Han Young

AU - Hou, Jianhui

PY - 2018

Y1 - 2018

N2 - Here, the crucial role of intermolecular π-π interactions in A-D-A-type acceptors is examined and a simple yet effective modulation method is presented. By side chain manipulation, two small molecule acceptors, IDT-C6 and IDT-PhC6, are designed and synthesized with different crystalline morphologies. Since n-hexyl side chains have less steric hindrance than hexylphenyl side chains, IDT-C6 exhibits enhanced intermolecular π-π interactions relative to IDT-PhC6. Benefiting from the improved charge transport properties of the IDT-C6-based device, a high PCE of 12.5% is recorded, whereas those of the IDT-PhC6-based device delivers a moderate PCE of just 5.6%.

AB - Here, the crucial role of intermolecular π-π interactions in A-D-A-type acceptors is examined and a simple yet effective modulation method is presented. By side chain manipulation, two small molecule acceptors, IDT-C6 and IDT-PhC6, are designed and synthesized with different crystalline morphologies. Since n-hexyl side chains have less steric hindrance than hexylphenyl side chains, IDT-C6 exhibits enhanced intermolecular π-π interactions relative to IDT-PhC6. Benefiting from the improved charge transport properties of the IDT-C6-based device, a high PCE of 12.5% is recorded, whereas those of the IDT-PhC6-based device delivers a moderate PCE of just 5.6%.

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DO - 10.1039/c7ta10461h

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The crucial role of intermolecular π-π Interactions in A-D-A-type electron acceptors and their effective modulation

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

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