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Showing 1 to 16 of 16 for “"Hybrid Perovskite"”.
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Electron Microscopy Studies of Hybrid Perovskite Solar Cells
Over the last five years hybrid organic-inorganic metal halide perovskites have attracted strong interest in the solar cell community as a result of their high power conversion efficiency and the solid opportunity to realise a low-cost as well as industry-scalable technology. Nevertheless, several …
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Device Physics of Organic-Inorganic Hybrid Perovskite Semiconductors
… 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 study …
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Synthesis and Characterization of Methylammonium Strontium Bromide Hybrid Perovskite
… investigated the properties of a Sr-containing hybrid perovskite, methylammonium strontium bromide (MASrBr3). We report on the preparation of MASrBr3 thin films and studied the effects of annealing temperature, annealing time, and precursor solution concentration on crystal growth using XRD and …
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CHARGE TRANSPORT IN ORGANIC AND HYBRID PEROVSKITE FIELD EFFECT TRANSISTORS
Organic semiconductors and hybrid organic/inorganic perovskite semiconductors can address new applications, which are off-limits for conventional silicon-based electronics. We fabricate organic field-effect transistors (OFETs) and through the use of several device architectures, in combination with …
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Metal oxide nanostructures and hybrid perovskite semiconductor for photovoltaic application
Perovskite-based solar cells (PSC) is the fastest growing solar technology to date since inception in 2009. This technology has invigorated the photovoltaic (PV) community. While it has taken 15-42 years for traditional PV technologies to achieve maturity, PSC technology has accomplished the same …
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Low Dose Analytical Electron Microscopy of Hybrid Perovskite Photovoltaic Devices
The rapid ascent of perovskite photovoltaics over the past decade has enabled this technology to now stand on the cusp of commercialisation. However, a successful entry into the market will only be feasible if the power conversion efficiencies of perovskite solar modules can at least approach those …
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Exciton and Energy Transfer Dynamics in Hybrid Perovskite and Lanthanide Nanomaterials
A new class of semiconductors, halide perovskites have stood out from other semiconductors due to their tunable emission properties, ease of fabrication and device integration. Some perovskite nanostructures, e.g. self-assembled hybrid perovskite quantum wells (PQWs) and CsPbX3 nanoparticles, show …
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Scalable Fabrication of High Efficiency Hybrid Perovskite Solar Cells by Electrospray
Perovskite solar cells have attracted much attention both in research and industrial domains. An unprecedented progress in development of hybrid perovskite solar cells (HPSCs) has been seen in past few years. The power conversion efficiencies of HPSCs has been improved from 3.8% to 24.2% in less …
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Development of Metal Halide Perovskites for Memristor Applications
… as the insulator layer. Among them, halide perovskites have drawn extensive attention owing to their superb physical and electronic properties, including ambipolar carries transport, low defect density, tunable bandgap, long diffusion length, and so on. In this thesis, halide …
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Mixed Halide Perovskite Solar Cells: Influence of Fabrication and Post Fabrication Conditions on the Device Performance
Organic-inorganic hybrid perovskite solar cells have attracted tremendous attention due to the dramatic improvement in efficiency from 3.8% to 22% in seven years. The technology, however, faces several challenges such as degradation due to the effect of humidity, hysteresis in the current-voltage …
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Multi-pulse nonlinear optical spectroscopy and light-matter interactions in layered materials.
… Two-dimensional organometallic lead halide perovskites are generating great interest due to their optoelectronic characteristics, such as a direct band gap in the visible regime. However, the presence of defect states within the crystal structure can affect these properties, resulting in …
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Lithium-ion Battery Devices as a Method of Doping Metal Halide Perovskites
Hybrid perovskite semiconductors are arguably one of the most promising material systems for the next generation of energy conversion devices studied today. Reports of record-breaking energy conversion efficiencies are disclosed on an almost yearly basis. However, unlike traditional inorganic …
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Towards Glasses from Two-Dimensional Hybrid Organic–Inorganic Perovskites
Hybrid organic-inorganic perovskites (HOIPs) are an emerging class of functional materials with exceptional potential in optoelectronics. While research has long focused on their crystalline states, recent discoveries have revealed that certain HOIPs can melt, and be quenched into frozen liquids, …
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Co-Assembly Of Nanostructured Hybrid Materials For Energy Applications
… of multifunctional nanostructured hybrid materials on multiple length scales by co-assembly of organic and organic/inorganic components. These materials are promising for a number of applications, and in particular for energy conversion devices. In the first part, organic-inorganic …
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Exploiting and Inhibiting Ion Migration to Control Luminescence in Halide Perovskites
… optoelectronic and structural changes of hybrid metal halide perovskites under light illumination or electric bias, and methods to exploit or inhibit these ion migration processes by implementation of effective passivation approaches. We first critically review recent studies on the …
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Electronic Structure Based Investigations of Hybrid Perovskites and Their Nanostructures
<p>Perovskites are a category of semiconductors with outstanding optoelectronic properties. Especially in the last decades, three-dimensionally connected (“3D”) hybrid perovskites gained an important position as an innovative solar-cell material by including organic cations. Related molecularly …