首页|Polyethylene interfacial dielectric layer for organic semiconductor single crystal based field-effect transistors

Polyethylene interfacial dielectric layer for organic semiconductor single crystal based field-effect transistors

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Organic semiconductor single crystals(OSSCs)have shown their promising potential in high-performance organic field-effect transistors(OFETs).The interfacial dielectric layers are critical in these OFETs as they not only govern the key semiconductor/dielectric interface quality but also determine the growth of OSSCs by their wetting properties.However,reported interfacial dielectric layers either need rig-orous preparation processes,rely on certain surface chemistry reactions,or exhibit poor solvent re-sistance,which limits their applications in low-cost,large-area,monolithic fabrication of OSSC-based OFETs.In this work,polyethylene(PE)thin films and lamellar single crystals are utilized as the inter-facial dielectric layers,providing solvent resistive but wettable surfaces that facilitate the crystallization of 6,13-bis(tri-isopropylsilylethynyl)pentacene(TIPS-PEN)and 6,13-bis(triisopropylsilylethynyl)-5,7,12,14-tetraazapentacene(TIPS-TAP).As evidenced by the presence of ambipolar behavior in TIPS-PEN single crystals and the high electron mobility(2.3±0.34 cm2 V-1 s-1)in TIPS-TAP single crystals,a general im-provement on electron transport with PE interfacial dielectric layers is revealed,which likely associates with the chemically inertness of the saturated C-H bonds.With the advantages in both processing and device operation,the PE interfacial dielectric layer potentially offers a monolithic way for the enhance-ment of electron transport in solution-processed OSSC-based OFETs.

PolyethyleneInterfacial dielectric layerOrganic semiconductorSingle crystalOrganic field-effect transistors

Min Chen、Boyu Peng、Xuyun Guo、Ye Zhu、Hanying Li

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Department of Polymer Science and Engineering,MOE Key Laboratory of Macromolecular Synthesis and Functionalization,International Research Center for X Polymers,Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering,Zhejiang University,Hangzhou 310027,China

Department of Applied Physics,Research Institute for Smart Energy,The Hong Kong Polytechnic University,Hong Kong 999077,China

国家重点研发计划国家重点研发计划科技部项目国家自然科学基金国家自然科学基金Zhejiang Province science and Technology Plan浙江省科技厅项目Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering中央高校基本科研业务费专项

2019YFE01167002019YFA070590051873182521032312021C040122021SZ-FR003226-2023-00113

2024

10.1016/j.cclet.2023.109051

中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
年,卷(期)：2024.35(4)
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