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 92 for “"Organic electronics"”.
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Excitonics for Organic Electronics
Organic semiconductors have immense potential as replacements for traditional inorganic materials in optoelectronics applications, in particular for organic light-emitting diodes (OLEDs). At the core of the device physics governing the stability and efficiency of OLEDs are tightly bound …
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Organic Electronics by Self-Assembly
… measurements showed a complete coverage of an organic layer with a thickness matching perfectly the simulated length of the molecule. In contrast to the previous SAMFETs, the phosphorous was located mainly at the aluminium oxide surface and not, as before, throughout the organic layer. The …
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Liquid crystalline semiconductors for organic electronics
… emission have been observed and a White-Light Organic Light-Emitting Diode (WOLED) fabricated from binary mixtures of LCs. A series of fluorene-containing LCs have been synthesised for use as hole-transport, electron-transport and electroluminescent materials. Many of these materials exhibit …
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New fluorene based materials for organic electronics
… are attractive candidates for application in organic light emitting diodes (OLEDs) and organic field effect transistors (OFETs). The first part of my thesis deals with the synthesis of reactive mesogens with conjugated fluorene units and acrylate end groups as photopolymeriseable species. They …
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Towards novel photoswitches for applications in organic electronics
… of new optoelectronic devices based on organic materials are novel photoswitches. These are molecules that are able to undergo a reversible structural change under a light stimulus which gives rise to unique properties. Thus, it allows the control of properties via the use of light in a …
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Molecular Encapsulation of Conjugated Polymers for Organic Electronics
… for their application in the field of organic electronics. Attributes such as their semiconducting nature, solution processability, degree of flexibility, and infinite tunability have led to their successful implementation as light-harvesting or light-emitting materials. In the first …
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Molecular design for controlling morphology in organic electronics
… performance parameters, and challenges of organic photovoltaic devices. We also discuss some strategies to improve the performance of photovoltaics, with an emphasis on morphology control in polymer bulk-heterojunction devices. Chapter 2 describes the synthesis of a class of polymer …
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Applications of Single-Walled Carbon Nanotubes in Organic Electronics
… conformable, and inexpensive. SWNT-based electronics are promising for chemical and biological sensing applications, for example, where high carrier mobilities are unnecessary, and material conformity and inexpensive processing are significant advantages. Considerable progress has been …
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Molecular origins of polymorphic phase transitions for dynamic organic electronics
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Dynamic-template-directed crystallization of semiconducting polymers for organic electronics
… potential applications in large-area printed electronics from solar cells to biomedical devices. However, controlling the multiscale morphology and device performance of printed polymer thin films remains a key challenge. This is largely due to the disparity in time scales of polymer assembly …
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Understanding the Structure-Property Relationship in Diketopyrrolopyrroles for Organic Electronics
… chains was also attempted, for application in bioelectronics. The final part of this thesis explores the different synthetic attempts towards a novel DPP polymer consisting of a higher DPP to thiophene ratio than previously reported. Based upon previous electronic calculations, this polymer is …
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Synthesis and characterisation of conjugated 4,8-benzobisthiazole derivatives for organic electronics
In recent years the field of organic semiconducting materials has seen rapid growth and development, with keen interest from both industrial and academic research. In the early stages of development, much of the performance improvements were due to increasingly complex device fabrication and …
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Design and Synthesis of Molecularly Encapsulated Conjugated Materials for Organic Electronics.
The (photo)physical properties of polymers are predominantly attributed to their intermolecular and intramolecular interactions. In conjugated polymers, charges or excitons can transport either along the conjugated backbone or intermolecularly via π-stacking interactions. Yet, our understanding of …
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Polymer and carbon nanotube materials for chemical sensors and organic electronics
… for high-performance chemical sensing as well as organic electronic applications. In Chapter 2, we develop a chemiresistive material based on single-walled carbon nanotubes (SWCNTs) and hexafluoroisopropanol (HFIP) functionalized polythiophene, with a largely simplified fabrication process. The …
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Oxidative and initiated chemical vapor deposition for application to organic electronics
… conductors in 1977, the research area of "organic electronics" has grown dramatically. However, methods for forming thin films comprised solely of conductive polymers are limited by the rigid nature of the conjugated backbone. Neither spin casting from solution nor melt processing can be …
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Design and synthesis of organic chromophores for imaging, lithography and organic electronics
… and photoreactivities of small-molecule organic chromophores can be tailored by (a) the choice of an appropriate parent structure and (b) the deliberate introduction of substituents that predictably alter the optical properties and photochemistry of this parent structure. …
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Donor-Acceptor Block Copolymers in Organic Electronics - Spectroscopy, Charge Transport, Morphology and Device Application
Organic electronic devices have attracted increasing attention over the last decade. The use of organic materials allows the creation of large area, flexible and low-cost lightemitting devices, transistors and photovoltaics. The development of new organic materials contributes to a successful …
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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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ZETHRENE AND EXTENDED ZETHRENE BASED DIRADICALOIDS AND TETRARADICALOIDS
… properties and potential applications in organic electronics, nonlinear optics, spintronics, and energy storage devices. This thesis describes the synthesis, physical properties of a series of zethrene-based biradicaloids and tetraradicaloids. These new compounds exhibit attractive …
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Development and Characterization of Flexible Double-Gate Organic Transistors for Sensing Applications
Organic electronics is the starting point of a new kind of technology that’s gained a lot of interest in the latest decades of the 20th century and continues now in the 21st century. The possibility to realize flexible devices in a large area gives this field of research a particular interest, …
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