Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 26 for “"Organic field-effect transistors (OFETs)"”.
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Fused Arenes-Based Molecular and Polymeric Materials for Organic Field Effect Transistors
… decade, tremendous progress has been made in organic field effect<br />transistors. Fused oligothiophenes and anthracene molecules are fascinating<br />macromolecules having unique optoelectronic properties. These compounds are successfully employed as active components in optoelectronic …
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Field effect investigations of charge carrier transport in organic semiconductors
Organic semiconductors are potentially a cost and energy effective alternative to conventional technologies. The understanding of charge transport in these materials and minimizing electrical losses in organic devices is essential to improve device output. In this thesis the transport properties of …
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Charge Transport in Organic Electronic Devices: From Nano to Macro-Scale
The electrical properties of devices based on an organic compound result from the structure of the molecules, their solid-state packing, efficiency of charge injection from the electrodes, and the fabrication procedures. The length scales of interest can also vary widely, ranging from a few …
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Structure-Function Relationships in Organic Charge-Transfer Complexes
Organic charge-transfer complexes are ordered combinations of charge-donating (D) and charge-accepting (A) compounds. The proximity of the D and A units results in a partial degree of ionicity and a band structure that is a hybrid of the parent compounds, allowing the complex to exhibit interesting …
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CHARGE TRANSPORT IN ORGANIC AND HYBRID PEROVSKITE FIELD EFFECT TRANSISTORS
Organic semiconductors and hybrid organic/inorganic perovskite semiconductors can address new applications, which are off-limits for conventional silicon-based electronics. We fabricate organic field-effect transistors (OFETs) and through the use of several device architectures, in combination with …
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Synthesis, Physical Properties and Applications of Bisanthene-based Near Infrared Dyes and Semiconductors
… (ODI-CN) was prepared and its application on organic field effect transistors (OFETs).
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Enhancing the Electrical Performance of Organic Field-Effect Transistors Through Interface Engineering
… thread among all electronic applications is the field-effect transistor (FET); a small electrical switch that can control the current flow. The most common material used in FETs today is silicon. Materials used in silicon-based electronics have now begun to be complemented by, and in some case …
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Novel patterning techniques for manufacturing organic and nanostructured electronics
Molecular organic semiconductors and nanometer size particles are two new classes of functional materials allowing fabrication of electronic devices on low-cost and large area substrates. Patterning these electronic materials requires the development of unconventional techniques, and the scientific …
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Threshold voltage in pentacene field effect transistors with parylene dielectric
Organic field effect transistors (OFETs) offer a suitable building block for many flexible, large-area applications such as display backplanes, electronic textiles, and robotic skin. Besides the organic semiconductor itself, an important area in the development of OFETs is the gate dielectric …
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Design, synthesis and characterization of thiazole-based conjugated polymers and their applications to n-channel organic electronics
In the past several decades, π-conjugated organic and polymeric semiconducting materials have attracted significant attention due to their promising electronic and optoelectronic properties. Therefore, their potential in applications to electronic and optoelectronic devices have been investigated, …
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Correlation between interface-dependent properties and electrical performances in OFETs
… in determining the electrical performances in organic devices is that, even though they are usually thought as macroscopic devices, their behaviour is strongly driven by interfacial phenomena taking place in the nano scale. The focus of this thesis is the realization and characterization of …
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Design, Synthesis, and Characterization of Novel Phosphorus-Containing Conjugated Materials Based on Vat Orange 3
… not be overlooked. This is where π-conjugated organic materials play a pivotal role. Research in the new millennium has provided numerous types of conjugated materials possessing properties that offer clear paths towards integrated electronic devices (e.g., Organic Light-Emitting Devices …
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Fully printed transistors employing silicon nanoparticles
… silicon, with the aim of producing fully printed transistors. All of the printed transistors produced to date have been field-effect transistors (FETs), due to the fact that printing processes are easily applicable to the planar FET architectures. The majority of the work in the area of printed …
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Inkjet printing: technique and applications for organic electronic devices
… in 1977 by Shirakawa,MacDiarmid and Heeger, Organic Electronics has been growing and establishing for a new generation of electronic devices. On one hand, the unique properties of polymeric semiconductors and conductors, such as flexibility and transparency, allow the fabrication of low-cost …
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Facilitating an Integrated Data-Centric Approach to Optimize Donor-Acceptor Copolymer Based Organic Field Effect Transistors
… the way for flexible, lightweight, and cost-effective electronic devices such as organic field-effect transistors (OFETs), light-emitting diodes, and solar cells. Unlike silicon, CPs can be processed as solutions, rendering them more suitable for developing electronic devices with room for …
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Understanding transport processes of organic semiconductors via magnetic resonance methods
… last decade has witnessed a huge development of organic semiconducting materials, including the boost in the discoveries of new materials for outstanding optoelectronic performance, as well as the rise of new application scenarios such as flexible electronics, biocompatible sensors, and inkjet …
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Influence of Structural Disorder on Charge Transport and Stability in Organic Field-Effect Transistors with Molecular Semiconductors
Organic semiconductors (OSCs) are distinguished by the soft van der Waals interactions among π-conjugated moieties, garnering substantial interest for potential use in large-area and flexible electronics due to their inherent lightweight, versatile processing capabilities, and compatibility with …
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Improving the Stability of Organic Field-Effect Transistors
… promise of low-temperature solution-processing, organic field-effect transistors (OFETs) have evolved from a convenient tool for semiconductor parameter analysis to a technology slowly entering the market as circuit components in flexible electronics. Since the first devices in the 1980s, OFET …
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Nanoelectronic Devices using Carbon Nanotubes and Graphene Electrodes: Fabrication and Electronic Transport Investigations
… devices using (i) semiconducting CNTs, and (ii) organic semiconductors (OSC). In the first part of this thesis, I will demonstrate the fabrication of high-performance solution-processed highly enriched (99%) semiconducting CNT thin film transistors (s-CNT TFTs) using densely aligned arrays of …
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From Dye Sensitized Solar Cells to Organic Field Effect Transistors: A Computational Investigation into the Structural and Electronic Properties of Novel Phthalocyanines
… were not currently believed to form.</p> <p>The effect of metal center and peripheral modification on the Pc structural and electronic properties is also determined through a systematic investigation of several Pcs with varying degree of peripheral modification as well as several different metal …
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