journal article·2024-09-02

A Dry-Transfer Method for Molecular Monolayer Crystals toward Flexible High-Performance Organic Field-Effect Transistors

Xinru Wang, Sicheng Li, Qiuyue Sheng, Zuozhu Liu, Boyu Peng, Hanying Li

ACS Materials Letters· Volume 6· Issue 9
Publisher page

Abstract

The single crystals of organic semiconductor crystals (SC-OSCs) have displayed great potential in organic field-effect transistors (OFETs), given the high mobility brought by the long-range ordering and the absence of structural defects in SC-OSCs. Benefiting from their intrinsic flexibility and thinnest possible thickness, molecular monolayer crystals (MMCs) are considered to be one of the optimum candidates as the active layer in flexible OFETs. In this work, a new dry-transfer method via an in situ vapor-deposited parylene film on MMCs was developed for fabricating flexible OFETs. The transferred MMCs retained an atomically flat surface and long-range ordering and exhibited a conformal and residue-free interface with the dielectric layer, thereby giving a high average mobility of 13.23 cm 2 V –1 s –1 to the flexible OFETs. Therefore, the presented method offers a new opportunity to overcome the trade-off between high performance and good mechanical flexibility in flexible OFETs.
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Research context

OpenAlex topics: Organic Electronics and Photovoltaics · Advanced Sensor and Energy Harvesting Materials · Molecular Junctions and Nanostructures

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China

ZJU-Angelalign R&D Center for Intelligence Healthcare, Zhejiang University−University of Illinois at Urbana-Champaign Institute, Zhejiang University, Haining 314400, China

State Key Laboratory of Biobased Transportation Fuel Technology, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China

Funding

National Key Research and Development Program of China · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province

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