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Showing 1 to 16 of 16 for “"metal halide perovskite"”.
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Charge and Thermoelectric Transport in Metal Halide Perovskite Semiconductors
Metal halide perovskites exhibit optoelectronic properties that hold significant potential for applications in photovoltaics, light-emitting diodes, photodetectors, X-ray detectors, and field-effect transistors (FETs). Rapid and substantial enhancements in the performance of perovskite-based …
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Chemical Modifications and Passivation Approaches in Metal Halide Perovskite Solar Cells
… of passivated and chemically modified hybrid metal halide perovskite materials and development of highly efficient charge transport layers for perovskite solar cells. We first developed an efficient electron transport layer via modification of titanium dioxide nanostructure followed by a …
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Continuous synthesis of metal halide perovskite nanoparticles with sharp and stable emission
Metal halide perovskite nanoparticles present unique and attractive optical and electronic properties, leading to promising application in optoelectronic devices such as light-emitting diodes and solar cells. The optical properties of metal halide perovskite nanoparticles are tuneable by size, …
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In-Situ and Operando Multimodal Microscopy of Metal Halide Perovskite Optoelectronic Devices
Metal-halide perovskites are materials at the forefront of the next generation of optoelectronic materials. Of particular interest is their remarkable power conversion efficiencies when incorporated into thin film solar cells. The properties of next-generation semiconductors such as perovskites are …
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Spatially Resolved Charge Transport and Recombination in Metal-Halide Perovskite Films and Solar Cells
Metal-halide perovskites show great promise as solution-processable semiconductors for efficient solar cells and LEDs. In particular, the diffusion range of photogenerated carriers is unexpectedly long and the luminescence yield is remarkably high. While much effort has been made to improve device …
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Interface engineering and multi-modal characterization of co-evaporated metal halide perovskite films for efficient perovskite-silicon tandem solar cells
… and scalable renewable energy technologies. Perovskite–silicon tandem solar cells (PSTs) have recently reached certified efficiencies of 34.9%, surpassing the single-junction efficiency limit and underscoring their industrial potential. To enable large-scale deployment, up-scalable deposition …
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Technoeconomic analysis of perovskite photovoltaic manufacturing for powering telecommunications Towers
In recent years, metal halide perovskite solar cells have gained traction as a potential competitor to the mature silicon-based solar cells in terms of both cost and performance. Being a young technology, however, means little is known about its true market value. In order to understand this, it is …
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All Inorganic Colloidal Perovskite Nanocrystals for Optoelectronic Applications
… device performance of colloidal all-inorganic metal-halide perovskite nanocrystals (CsPbX3 NCs, where X=Br or I). These types of materials have shown promising performance in applications including photovoltaics (PVs) and light-emitting diodes (LEDs) due to their excellent optoelectronic …
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Device Physics of Organic-Inorganic Hybrid Perovskite Semiconductors
This dissertation explores various aspects of metal halide perovskite semiconductors for photovoltaic and optoelectronic applications. The research focuses on addressing key challenges and advancing the understanding of perovskite field-effect transistors (FETs) for improved device performance. The …
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Mirror-Coupled Nanoantennas with Hexagonal-Boron Nitride Spacers
… Measurements using nanoplatelets of the metal halide perovskite methyl-ammonium lead-iodide, lead to suppression of resonant modes and a blue-shifting behaviour correlated with light emission.
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Local structure of hybrid metal-halide perovskites
… and op- toelectronic properties of the hybrid metal halide perovskite family MAPbX3 (MA+ = methylammonium, CH3NH+3 , X = Cl−, Br−). Static disorder was introduced by halide substitution through solid state synthesis, providing better stoichiometric control compared to solution based techniques. …
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Pale black dot: a field trip to the multidimensional world of metal halide perovskites
Metal halide perovskites have recently emerged as promising alternatives to conventional semiconductors. However, their insufficient stability against external stressors continues to hinder their commercialisation. Here, we explore an additive-induced self-assembling two-dimensional capping layer …
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Compositional engineering of solution-processed solar cells : aligning computational and experimental screening strategies
… to mediate the assembly and growth of plasmonic metal-oxide nanocomposites. The second project evaluates how replacing a portion of the metal content in metal-halide perovskite solar cells with alternative non-toxic metal species impacts the photovoltaic properties of the perovskite film. …
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Stability study in lead-halide perovskite light-emitting diodes
The metal halide perovskite group of materials not only have led to great advances in photovoltaics, but also have shown great potential in light emitting applications. Other than energy efficiency and brightness, perovskite emitters have advantages such as high colour saturation and low processing …
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Spin dynamics of bulk and quasi-two-dimensional metal halide based perovskite semiconductors
… bulk and quasi-two-dimensional (quasi-2d) metal halide perovskites. Specifically, of their spin dependencies on lattice and many-body interactions. Many of these results were obtained in close collaboration with others, as specified throughout the dissertation. First, we report that …
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Optical and electrical optimization by advanced characterization of monolithic perovskite/silicon tandem solar cells
Hybrid metal-halide perovskite solar cells have experienced a tremendous development within a short time period. In 2009 the first perovskite single-junction solar cell with a power conversion efficiency (PCE) of 3.8% was presented. Just eleven years later, in year 2020, a PCE of 25.5% was …