用于有机场效应晶体管的天然电介质：对源自落叶松、云杉和阿特拉斯雪松等松科树木的树脂的研究

Schimanofsky Corina, Petritz Andreas, Ban Boyuan, Irimia Cristian Vlad, D'Orsi Rosarita, Yumusak Cigdem, Mayr Felix, Kanbur Yasin, Kim Sunwoo, Operamolla Alessandra, Saller Klara, Schiek Manuela, Salinas Yolanda, Brüggemann Oliver, Teichert Christian, Xu Chunlin, Shim Bong Sup, Schwarzinger Clemens, Stadlober Barbara, Sariciftci Niyazi Serdar, Irimia-Vladu Mihai

Johannes Kepler University Linz, Institute of Physical Chemistry, Linz Institute for Organic Solar Cells (LIOS) Altenberger Str. 69 Linz 4040 Austria

Joanneum Research Materials, Institute for Surface Technologies and Photonics Franz-Pichler Str. 30 Weiz 8169 Austria.

Mater Adv. 2025 Jun 18. doi: 10.1039/d5ma00401b.

Three Pinaceae resins originating from trees of high industrial significance-European larch, European spruce, and Atlas cedar-were examined in this work. These resins exhibited ease of processing using ethyl alcohol solutions, exceptional film formation, and great dielectric qualities with measured breakdown fields in the range of 5-7.3 MV cm. Because their film surface was essentially trap-free, it was possible to fabricate organic field effect transistors that are hysteresis-free and have outstanding stability under 12-hour bias stress at working voltages below 10 V, with current retention approaching 90% of the original value and transfer curve recovery occurring within 90 minutes. These environmentally friendly materials, which are freely available, are a great option for applications aiming to produce sustainable electronics.

在本研究中，对三种具有高度工业价值的松柏科树脂进行了检测，它们分别来自欧洲落叶松、欧洲云杉和阿特拉斯雪松。这些树脂易于用乙醇溶液进行加工，具有出色的成膜性，并且具有优异的介电性能，测得的击穿场强在5 - 7.3 MV/cm范围内。由于其薄膜表面基本无陷阱，因此可以制造出无滞后现象且在低于10 V的工作电压下经过12小时偏置应力后具有出色稳定性的有机场效应晶体管，电流保持率接近原始值的90%，并且在90分钟内转移曲线即可恢复。这些可免费获取的环保材料，是旨在生产可持续电子产品的应用的理想选择。