journal article·2022-05-25

Molecular Engineering of Printed Semiconducting Blends to Develop Organic Integrated Circuits: Crystallization, Charge Transport, and Device Application Analyses

Hyeok-jin Kwon, Xiaowu Tang, Seonghyeon Kim, Zhijun Li, Rixuan Wang, Byung Ho Park, Cheulhwan Kim, Soyeon Kim, Jisu Hong, Ka Yeon Ryu, Hyun Ho Choi, Tae Kyu An, Jihoon Lee, Se Hyun Kim

ACS Applied Materials & Interfaces· Volume 14· Issue 20
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Abstract

Solution-based printing has contributed to the facile deposition of various types of materials, including the building blocks of printed electronics. In particular, solution-processable organic semiconductors (OSCs) are regarded as one of the most fascinating candidates for the fabrication of printed electronics. Herein, we report electrohydrodynamic (EHD) jet-printed p- and n-type OSCs, namely 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-PEN) and 6,13-bis((triisopropylsilyl)ethynyl)-5,7,12,14-tetraazapentacene (TIPS-TAP), and their use as single-OSC layers and as OSC mixed p-n layers to fabricate solution-processed p-, n-, and ambipolar-type organic field-effect transistors (OFETs). Use of the dragging mode of EHD jet printing, a process driven under a low electrostatic field with a short nozzle-to-substrate distance, was found to provide favorable conditions for growth of TIPS-PEN and TIPS-TAP crystals. In this way, the similar molecular structures of TIPS-PEN and TIPS-TAP yielded a homogeneous solid solution and showed ambipolar transport properties in OFETs. Therefore, the combination of single- and mixed-OSC layers enabled the preparation of various charge-transported devices from unit to integrated devices (NOT, NAND, NOR, and multivalued logic). Therefore, this fabrication technology can be useful for assisting in the production of OSC layers for practical applications in the near future.
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Research context

OpenAlex topics: Organic Electronics and Photovoltaics · Electrohydrodynamics and Fluid Dynamics · Electrowetting and Microfluidic Technologies

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

Affiliations

Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Korea

College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450002, China

Department of IT·Energy Convergence (BK21 Four), Korea National University of Transportation, Chungju 27469, Republic of Korea

School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea

EMNI Co., Ltd., 14, Seocheon-ro 201beon-gil, Yongin 17111, Republic of Korea

Research Institute for Green Energy Convergence Techonology, Gyeongsang National University, Jinju 52828, Republic of Korea

Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, United States

Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Korea

Department of Polymer Science and Engineering, Korea National University of Transportation, Chungju 27469, Republic of Korea

Chemical Industry Institute, Korea National University of Transportation, Chungju 27469, Republic of Korea

Funding

National Research Foundation of Korea · Ministry of Trade, Industry and Energy

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