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Keywords = soluble acene

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17 pages, 5055 KiB  
Review
Microstructural Control of Soluble Acene Crystals for Field-Effect Transistor Gas Sensors
by Jung Hun Lee, Jeong Hwan Chun, Hyun-Jong Chung and Wi Hyoung Lee
Nanomaterials 2022, 12(15), 2564; https://doi.org/10.3390/nano12152564 - 26 Jul 2022
Cited by 4 | Viewed by 2614
Abstract
Microstructural control during the solution processing of small-molecule semiconductors (namely, soluble acene) is important for enhancing the performance of field-effect transistors (FET) and sensors. This focused review introduces strategies to enhance the gas-sensing properties (sensitivity, recovery, selectivity, and stability) of soluble acene FET [...] Read more.
Microstructural control during the solution processing of small-molecule semiconductors (namely, soluble acene) is important for enhancing the performance of field-effect transistors (FET) and sensors. This focused review introduces strategies to enhance the gas-sensing properties (sensitivity, recovery, selectivity, and stability) of soluble acene FET sensors by considering their sensing mechanism. Defects, such as grain boundaries and crystal edges, provide diffusion pathways for target gas molecules to reach the semiconductor-dielectric interface, thereby enhancing sensitivity and recovery. Representative studies on grain boundary engineering, patterning, and pore generation in the formation of soluble acene crystals are reviewed. The phase separation and microstructure of soluble acene/polymer blends for enhancing gas-sensing performance are also reviewed. Finally, flexible gas sensors using soluble acenes and soluble acene/polymer blends are introduced, and future research perspectives in this field are suggested. Full article
(This article belongs to the Special Issue Nanomaterials in Gas Sensors)
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16 pages, 12530 KiB  
Review
Inkjet-Printed Organic Transistors Based on Organic Semiconductor/Insulating Polymer Blends
by Yoon-Jung Kwon, Yeong Don Park and Wi Hyoung Lee
Materials 2016, 9(8), 650; https://doi.org/10.3390/ma9080650 - 2 Aug 2016
Cited by 37 | Viewed by 10050
Abstract
Recent advances in inkjet-printed organic field-effect transistors (OFETs) based on organic semiconductor/insulating polymer blends are reviewed in this article. Organic semiconductor/insulating polymer blends are attractive ink candidates for enhancing the jetting properties, inducing uniform film morphologies, and/or controlling crystallization behaviors of organic semiconductors. [...] Read more.
Recent advances in inkjet-printed organic field-effect transistors (OFETs) based on organic semiconductor/insulating polymer blends are reviewed in this article. Organic semiconductor/insulating polymer blends are attractive ink candidates for enhancing the jetting properties, inducing uniform film morphologies, and/or controlling crystallization behaviors of organic semiconductors. Representative studies using soluble acene/insulating polymer blends as an inkjet-printed active layer in OFETs are introduced with special attention paid to the phase separation characteristics of such blended films. In addition, inkjet-printed semiconducting/insulating polymer blends for fabricating high performance printed OFETs are reviewed. Full article
(This article belongs to the Special Issue Polymer Blends and Compatibilization)
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