Natural, small molecule aliphatics (cholesterol and hexadecyl palmitate) as dielectrics for low-voltage organic field effect transistors

Cristian Vlad Irimia; Corina Schimanofsky; Boyuan Ban; Cigdem Yumusak; Martin Ciganek; Petr Sedlacek; Jozef Krajcovic; Rosarita D’Orsi; Alessandra Operamolla; Andreas Petritz; Katharina Matura; Barbara Stadlober; Yasin Kanbur; Yolanda Salinas; Oliver Brüggemann; Christian Teichert; Niyazi Serdar Sariciftci; Mihai Irimia-Vladu

doi:10.1039/D5MA00730E

Natural, small molecule aliphatics (cholesterol and hexadecyl palmitate) as dielectrics for low-voltage organic field effect transistors

Cristian Vlad Irimia,

^a Corina Schimanofsky,

^a Boyuan Ban,

^bc Cigdem Yumusak,

^a Martin Ciganek,

^d Petr Sedlacek,

^d Jozef Krajcovic,

^d Rosarita D’Orsi,

^e Alessandra Operamolla,

^e Andreas Petritz,

^f Katharina Matura,

^a Barbara Stadlober,

^f Yasin Kanbur,

^ag Yolanda Salinas,

^hi Oliver Brüggemann,

ⁱ Christian Teichert,

^b Niyazi Serdar Sariciftci

^a and Mihai Irimia-Vladu

*^a

Author affiliations

* Corresponding authors

^a Linz Institute for Organic Solar Cells (LIOS), Institute of Physical Chemistry, Johannes Kepler University Linz, Altenberger Str. 69, Linz, Austria
E-mail: mihai.irimia-vladu@jku.at

^b Chair of Physics, Department of Physics, Mechanics, and Electrical Engineering, Montanuniversität Leoben, Franz Josef Str. 18, Leoben, Austria

^c Institute of Solid-State Physics, Hefei Institute of Physical Science, Key Lab of Photovoltaic and Energy Conservation Materials, Hefei, China

^d Brno University of Technology, Faculty of Chemistry, Purkyňova 464/118, 612 00 Brno, Czechia

^e Department of Chemistry and Industrial Chemistry, University of Pisa, via Giuseppe Moruzzi 13, 54126 Pisa, Italy

^f joanneum Research Materials-Institute for Surface Technologies and Photonics, Franz-Pichler Strasse 30, 8160 Weiz, Austria

^g Department of Chemistry, Karabük University, Baliklarkayasi Mevkii, Karabük 78050, Turkey

^h Institute of Polymer Chemistry, Johannes Kepler University Linz, Altenberger Str. 69, Linz 4040, Austria

ⁱ IMC Krems University of Applied Sciences, Institute of Applied Chemistry, Piaristengasse 1, 3500 Krems, Austria

Abstract

In this study, we show that hexadecyl palmitate and cholesterol, two naturally occurring small molecule aliphatics, are suitable dielectrics for organic field effect transistors (OFETs). We provide a comprehensive description of their material characteristics, processability, and film-forming capabilities, as well as surface characterization and dielectric analysis. We finally employ them for the fabrication of organic field effect transistors, employing two traditional organic semiconductors, pentacene and fullerene, C₆₀. We demonstrate that most OFETs can function with operating voltage windows as low as 1 V, and driving voltages as low as 10 mV, when these materials solubilized in chloroform, are fabricated utilizing blade coating technique.

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Natural, small molecule aliphatics (cholesterol and hexadecyl palmitate) as dielectrics for low-voltage organic field effect transistors

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Natural, small molecule aliphatics (cholesterol and hexadecyl palmitate) as dielectrics for low-voltage organic field effect transistors

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