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 18 of 18 for “"Polymer Solar Cells"”.
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The challenges of organic polymer solar cells
The technical and commercial prospects of polymer solar cells were evaluated. Polymer solar cells are an attractive approach to fabricate and deploy roll-to-roll processed solar cells that are reasonably efficient (total PV system efficiency>10%), scalable and inexpensive to make and install (<100 …
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The interplay of nanostructure and efficiency of polymer solar cells
… a deep understanding of the working mechanism of polymer based solar cells and to improve the device performance. Two types of the polymer based solar cells are studied here: all-polymer solar cells comprising macromolecular donors and acceptors based on poly(p-phenylene vinylene) and hybrid cells …
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Molecular Engineering of Self-Assembled and Mechanically Robust Polymer Solar Cells
… from fossil fuels, the cost must be reduced. Polymer based solar cells have emerged as technology for harvesting renewable energy from sunlight. However, there are major challenges that need to be addressed before the marketability of these devices: (i) the lower device performance compared to …
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SPECTROSCOPIC, IMAGING, AND DOPING STUDIES OF PUSH-PULL CONJUGATED POLYMER SOLAR CELLS
… (PCPDTBT) is a promising candidate for use in solar cell active layers, and has produced OPV devices with power conversion efficiencies (PCEs) exceeding 5% when blended with fullerene electron acceptors. Although these results are encouraging, a molecular-level understanding of photophysical …
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Studies and Optimization of All-Polymer Solar Cells based on Naphthalene Diimide-Biselenophene Copolymer Acceptors
… Studies and understanding of fullerene-based polymer solar cells have led to a power conversion efficiency (PCE) of over 12%. However, such fullerene-based OPVs are not stable in air, among other disadvantages. This thesis mainly focuses on studies all-polymer solar cells (all-PCSs) based on …
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Optische und elektrische Spektroskopie an alternativen Absorbermaterialien für organische Solarzellen
… are discussed. Optical measurements on polymers and polymer-fullerene blends are shown to demonstrate, in principle, if these materials and material combinations are suitable for organic solar cell applications. An optimal post-heat treatment of the PEDOT:PSS interfacial layer in the …
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Barium Oxide as an Intermediate Layer for Polymer Tandem Solar Cell
Polymer solar cells (PSCs), a member of organic solar cell family, have attracted increasing research interest. PSCs possess significant advantages over their inorganic solar cell counter parts: mechanical flexibility, light weight, low expense, and the potential to achieve roll-to-roll large-scale …
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Design, synthesis and characterization of thiazole-based conjugated polymers and their applications to n-channel organic electronics
… 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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Fabrication of solution-processed photoactive polymer- and halide perovskite-based solar cells
… to fabricate low-temperature solution-processed solar cells using dip and spin coating methods. Inverted bulk heterojunction structure has been utilised in fabrication of polymer solar cells using dip coating method. In this structure, all layers except electrodes were deposited using dip coating …
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Directed Phase Separation of Polymer Blends on Binary-Patterned Polymer Brushes
Self-assembly of well-defined polymer microstructures is of interest for applications such as polymer solar cells, light emitting diodes, microelectronics and biosensors. Chemically patterned substrates can direct the phase separation of thin films of polymer blends, producing controlled …
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Oxidative chemical vapor deposition of semiconducting polymers and their use In organic photovoltaics
… functionalities. OPVs employing semiconducting polymers in the photoactive layer have traditionally been fabricated almost exclusively with solution-based techniques due to a lack of suitable alternatives. This has thus limited polymer solar cells and other polymer electronic devices to using …
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Investigation on Transport Mechanisms and Interfacial Properties of Solar Cells By Simulation
… and the surface interfacial properties of polymer-based solar cells is the prerequisite to crack the working mechanisms and improve the performances of photovoltaic devices. In order to increase the power conversion efficiency of dye sensitized solar cells and polymer-based hybrid …
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Highly conductive sodium dodecyl sulphate treated poly (3,4-ethylendioxylthiophene) : polystyrene sulfonate (pedot: pss) containing copper nanoparticles for flexible organic solar cells
Polymer Solar Cells (PSCs) have attracted great attention due to the advantages of their light weight, flexibility and low cost. The typical device architecture of polymer based solar cell consists Indium Tin Oxide (ITO) on glass as the transparent conducting electrode,Poly (3, …
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Highly conductive sodium dodecyl sulphate treated poly (3,4-ethylendioxylthiophene) : polystyrene sulfonate (pedot: pss) containing copper nanoparticles for flexible organic solar cells
Polymer Solar Cells (PSCs) have attracted great attention due to the advantages of their light weight, flexibility and low cost. The typical device architecture of polymer based solar cell consists Indium Tin Oxide (ITO) on glass as the transparent conducting electrode,Poly (3, …
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Elementary processes in layers of electron transporting Donor-acceptor copolymers : investigation of charge transport and application to organic solar cells
Donor-acceptor (D-A) copolymers have revolutionized the field of organic electronics over the last decade. Comprised of a electron rich and an electron deficient molecular unit, these copolymers facilitate the systematic modification of the material's optoelectronic properties. The ability to tune …
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Donor-Acceptor Block Copolymers for Charge Separation at Nanostructured Interfaces
… Therefore a series of functionalized block copolymers, acceptor labeled polymers and low molecular weight model compounds were synthesized in which hole transport (donor), electron transport (acceptor) and light absorbing functionalities were incorporated. My approach was to use functionalized …
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Surfactant Formulations for Water-Based Processing of a Polythiophene Derivative
<p>Conjugated polymers are semiconducting materials that are currently being researched for numerous applications from chemical and biological sensors to electronic devices, including photovoltaics and transistors. Much of the novel research on conjugated polymers is performed in academic settings, …