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 60 for “"organic photovoltaic"”.
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ORGANIC PHOTOVOLTAIC DEVICE OPTIMIZATION
Polymer based organic photovoltaic (OPV) is making great progress on solar cell performance in the past decade. As a potential alternative to conventional expensive photovoltaic technology, the ability of processing in solution enables OPV technology to be more and more popular in research area as …
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Radiation Study of the Organic Photovoltaic Cell P3HT:PCBM
… has led to attention being focused on organic semiconductor based solar cells. Such cells are lightweight, flexible and are potentially useful in conformal coverage applications. While these solar cells are less efficient (presently < 12%) than traditional silicon or III-V semiconductor …
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Nematic liquid crystals for nano-structured organic photovoltaic
A range of novel liquid crystals and amorphous organic conjugated semiconductors were synthesised by the chemistry branch of the Organophotonics group at Hull University. These compounds are studied electrochemically and optically to investigate the suitability of these materials as good …
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Spectroscopic Studies of Organic Photovoltaic Non-Fullerene Acceptors
… the photophysics of a class of functional organic materials called ‘non-fullerene acceptors’ (NFAs). They have become well-established as a component in the bulk heterojunction active layer of organic photovoltaic (OPV) cells, and are credited with facilitating a rapid increase in the power …
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Solar Energy Conversion and Control Using Organic Photovoltaic Cells
<p>Organic photovoltaic (OPV) cells are advanced, newly emerging technologies that are lightweight, mechanically flexible devices with highthroughput processes from low cost material in a variety of colors. Rathnayake et al. of Western Kentucky University have developed a nanostructure-based OPV …
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Information tracking and sharing in organic photovoltaic panel manufacturing
… with Konarka Technologies, a world leading organic solar panel manufacturer, on production tracking and analysis as well as various operational improvement projects. MIT's collaborative improvement projects at Konarka's manufacturing facility were focused on information system and operations …
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Evaluation of the commercial potential of novel organic photovoltaic technologies
Photovoltaic cells based on organic semiconducting materials have the potential to compete with the more mature crystalline and thin film based photovoltaic technologies in the future primarily due to the expectation of significantly reduced manufacturing costs. Stabilized power conversion …
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Tailoring functional Π-conjugated polymers and molecules for organic photovoltaic applications
The field of organic photovoltaics (OPVs) has developed into an active research topic in applied polymer, materials, and chemical sciences over the past decade due to the continuous improvement in device performance. The solution-processability of the organic active layer materials allows for the …
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Ultrafast Spectroscopic Studies of Solution-Processing Organic Photovoltaic Materials and Devices
Organic solar cells (OSCs) have potential applications in wearable electronics as well as in-door and building-integrated photovoltaics, owing to features such as low-temperature processing, light weight and flexibility, and synthetic versatility. Due to the development of new materials systems …
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Productivity and system improvements in an organic photovoltaic panel manufacturing facility
… with Konarka Technologies, Inc., a world-leading organic photovoltaic panel manufacturing facility that is in the process of ramping up their production volumes to meet growing demand. This thesis focuses on the development of an automatic inventory tracking system and data collection tools to be …
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Surface modification and characterization of zinc oxide for use in organic photovoltaic devices
Includes bibliographical references (pages 149-177).
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Surface plasmon polariton mediated energy transfer from external antennas into organic photovoltaic cells
… significant improvements in the performance of organic photovoltaic devices in recent years, the tradeoff between light absorption and charge separation efficiency remains pervasive; increasing light absorption by increasing the device thickness leads to a decrease in exciton diffusion …
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Design and implementation of a continuous improvement framework for an organic photovoltaic panels manufacturer
… worked at Konarka Technologies, the world leader organic photovoltaic panels (OPV) manufacturer, on several improvement projects. The concentration was on operations improvement as well as production information tracking and analysis. This thesis report, however, focuses primarily on the …
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The Role of Disorder in the Charge Dissociation and Recombination Processes of Organic Photovoltaic Materials
Organic Photovoltaic devices (OPVs) are becoming adequately cost and energy efficient to be considered a good investment and it is, therefore, especially important to have a concrete understanding of their operation. In this work, we use a fully quantum mechanical model of the electronic states of …
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Reducing recombination in organic photovoltaics
In this thesis, I consider two methods to improve organic photovoltaic efficiency: energy level cascades and promotion of triplet state excitons. The former relies on a thin layer of material placed between the active layers of a photovoltaic device to destabilize excitons. If the interfacial …
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Spectroscopic study of charge-separation dynamics in [pi]-conjugated systems
… of excited states involved in the operation of organic photovoltaic devices. Using spectroscopic and numerical tools, we study the photophysical properties of push-pull polymers, donoracceptor interfaces, and solution-processed small-molecule organic photovoltaic devices. In the first place, we …
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Application of CVD graphene in organic photovoltaics as transparent conducting electrodes
… to graphene research, solar cells based on organic materials have also drawn significant attention as a possible candidate for the generation of clean electricity over conventional inorganic photovoltaics due to the interesting properties of organic semiconductors such as high absorption …
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