Pursuing High-Mobility n-Type Organic Semiconductors by Combination of "Molecule-Framework" and "Side-Chain" Engineering

Cheng Zhang; Yaping Zang; Fengjiao Zhang; Ying Diao; Christopher R McNeill; Chong-An Di; Xiaozhang Zhu; Daoben Zhu

doi:10.1002/adma.201602598

Pursuing High-Mobility n-Type Organic Semiconductors by Combination of "Molecule-Framework" and "Side-Chain" Engineering

Adv Mater. 2016 Oct;28(38):8456-8462. doi: 10.1002/adma.201602598. Epub 2016 Jul 20.

Authors

Cheng Zhang^{1

2}, Yaping Zang^{1

2}, Fengjiao Zhang³, Ying Diao³, Christopher R McNeill⁴, Chong-An Di⁵, Xiaozhang Zhu^{6

7}, Daoben Zhu¹

Affiliations

¹ Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
² University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
³ Department of Chemical & Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, IL, 61801, USA.
⁴ Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia.
⁵ Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. dicha@iccas.ac.cn.
⁶ Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. xzzhu@iccas.ac.cn.
⁷ University of Chinese Academy of Sciences, Beijing, 100049, P. R. China. xzzhu@iccas.ac.cn.

PMID: 27435601
DOI: 10.1002/adma.201602598

Abstract

"Molecule-framework" and "side-chain" engineering is powerful for the design of high-performance organic semiconductors. Based on 2DQTTs, the relationship between molecular structure, film microstructure, and charge-transport property in organic thin-film transistors (OTFTs) is studied. 2DQTT-o-B exhibits outstanding electron mobilities of 5.2 cm² V^-1 s^-1 , which is a record for air-stable solution-processable n-channel small-molecule OTFTs to date.

Keywords: alkyl chains; morphology analysis; organic semiconductors; organic thin-film transistors; regiochemistry.