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 12 of 12 for “"Organic field-effect transistor"”.
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Localised Dosing and Nanodetection Using a Novel Scanning Ion Conductance Microscope and Its Application to Alzheimer's Disease
… response of the target cell. Examination of the effectiveness of antibodies that bind to Abeta or alpha-synuclein (Asyn)peptides depends on the measurement of oligomer-induced abnormal calcium homeostasis in single astrocytes. The method was shown to work at physiological concentrations of …
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Charge Transport in Field-Effect and Ion-Gel Gated Conjugated Polymers
Organic field effect transistors (OFETs) have recently made remarkable advancements, which have mostly been driven by the design, characterisation, and comprehension of new conjugated polymers. Significant effects can arise from making minor alterations to the monomers and building blocks, which …
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Probing charge motion in next-generation semiconductors with scanned probe microscopy
… to capacitance, surface potential, and electric fields with better time resolution. We demonstrate the measurements on organic and perovskite semiconductors. First, we present a new method for measuring photocapacitance transients. We demonstrate the ability of this indirect, ``phase kick'' …
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Stabilising Semiconducting Polymers Using Solid State Molecular Additives
Solution processed organic semiconductors contain extrinsic environmental species that cause device instabilities as they are difficult to remove during low temperature processing and are able to penetrate into organic electronics after fabrication. This dissertation is centered on the search for …
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ORGANIC ELECTRONIC TRANSISTORS AND MICROFLUIDICS FOR CANCER BIOMARKER SENSING
… thesis, a biosensor based on Electrolyte-Gated Organic Field-Effect Transistor (EGOFET) is presented. A dual Gate/common Channel architecture was designed and prototyped for quantifying the concentration of one of the strands of miRNA-21 in saline buffer. The organic electronic device allows one …
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Non-volatile organic memory devices: from design to applications
… of new non-volatile memory elements based on organic technology. During the last few decades, organic materials based devices have attracted considerable interest due to their great potential for future electronic systems. Low fabrication costs, high mechanical flexibility and versatility of …
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POLYMER ORGANIC SEMICONDUCTORS AND THEIR DEVICES
Organic semiconducting (OSC) polymers has been used in wide range of applications, such as light-emitting diodes, solar cells, and transistors. Here, different aspects regarding the optimization of this layer are discussed in their respective devices. Firstly, synthetic methodology based on Suzuki …
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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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Charge transport and spectroscopic analysis of high-mobility molecular semiconductors
Small molecule organic semiconductors have been at the heart of charge transport studies in organic electronic materials over recent decades. Their ordered structures have played a pivotal role in the development of novel theories elucidating the charge transport phenomena and in the advancement of …
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Improved Organic Semiconductor Thin-Film Formation through the Addition of Vibrations to the Solution Shearing Method
… conditions for the solution shearing of organic semiconductors for organic field-effect transistors (OFETs) are investigated. Electrical performance for OFETs is currently still limited by the charge carrier mobility, especially when high fabrication speeds are required. In this work, …
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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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Organische Feldeffekt-Transistoren: Modellierung und Simulation
… und Modellierung organischer Feldeffekt-Transistoren (OFETs). Mittels numerischer Simulationen wurden detaillierte Untersuchungen zu mehreren Problemstellungen durchgeführt. So wurde der Einfluss einer exponentiellen Verteilung von Trapzuständen, entsprechend dem sogenannten a-Si- oder …