A5005892461- Perovskite Materials and Applications
- Transition Metal Oxide Nanomaterials
- Chalcogenide Semiconductor Thin Films
- Solid-state spectroscopy and crystallography
- Quantum Dots Synthesis And Properties
- Luminescence and Fluorescent Materials
- Luminescence Properties of Advanced Materials
- Polydiacetylene-based materials and applications
- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Terahertz technology and applications
- Nanoplatforms for cancer theranostics
- Spectroscopy and Laser Applications
- Advanced Memory and Neural Computing
- Ga2O3 and related materials
- Carbon and Quantum Dots Applications
Wake Forest University
2023
Izmir Institute of Technology
2015-2022
Georgia Institute of Technology
2021-2022
Generating white light through a mainstream remote phosphor design suffers from conversion efficiency loss due to backscattering of light. Such also reduces luminous the resulting To overcome this issue, various glassy scatterers with different morphologies such as glass bubbles, beads, and nanosized silica particles were employed scatterers, together fixed amount yellow (YAG:Ce3+) poly(dimethylsiloxane) (PDMS) matrix. In addition, simulation system validates rigorous multiple scattering...
Vanadium dioxide (VO 2 ) shows metal-insulator phase transition at nearly 68 °C.This metalinsulator (MIT) in VO leads to a significant change near-infrared transmittance and an abrupt the resistivity of .Due these characteristics, plays important role on optic electronic devices, such as thermochromic windows, meta-materials with tunable frequency, uncooled bolometers switching devices.In this work, thin films were fabricated by reactive direct current magnetron sputtering O /Ar atmosphere...
All-inorganic metal halide perovskite nanocrystals (NCs) having the general formula ABX3, where A is a monovalent cation, for example, Cs+, B divalent typically Pb2+, and X Cl–, Br–, I–, or their binary mixture, show potential in optoelectronic devices. In this work, we explore effect of B-site doping on properties CsPbX3 NCs (X = Br, Cl). First, Pb2+ ions pristine CsPbBr3 NC are partially substituted by Mn2+ ions. The alkaline earth strontium then doped both Mn2+-substituted NCs. We found...
In this study, green-emitting nitrogen-doped carbon dots (N-CDots) were synthesized and incorporated into drop-cast composite films for use as color conversion layers in a white-LED configuration to generate white light. order resolve the red deficiency of configuration, commercial phosphor was integrated system. Moreover, N-CDots also processed polymer/N-CDot fibers, which we determined amount that yielded adequate white-light properties. Finally, showed light with excellent properties...
Metal halide perovskites are versatile materials which have already demonstrated exceptional performance in diverse optoelectronic devices. The progress has been significant; however, the fundamental understanding of physics charge injection remains elusive, impeding further advancements. Here, we use field-effect transistors (FETs) to investigate impact surface functionalization on and transport thin films phenethylammonium tin iodide (PEA2SnI4). We show that self-assembled monolayers...
Organic–inorganic lead halide perovskite solar cells are regarded as one of the most promising technologies for next generation photovoltaics due to their high power conversion efficiency (PCE) and simple solution manufacturing. Among different compositions, formamidinium iodide (FAPbI 3 ) photoactive phase has a bandgap 1.4 eV, which enables corresponding higher PCEs according Shockley–Queisser limit. However, crystal FAPbI is not stable at room temperature. The high‐performing compositions...
Vanadium dioxide (VO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ) which is a transition metal compound demonstrates insulator (MIT) property. The carries out at nearly 68 °C <sup xmlns:xlink="http://www.w3.org/1999/xlink">1</sup> . VO exhibits phase with monoclinic crystal structure low temperatures below the transition, while metallic tetragonal high above xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> Electrical resistivity of...
Inorganic lead halide perovskite nanocrystals (NCs) have recently become one of the research topics for optoelectronic applications due to their excellent photo-physical properties. Despite notable thermal stability over organic-inorganic perovskites, CsPbI3 NCs suffer from phase instability α-CsPbI3 at room temperature and under ambient conditions. Here, effects 4-Hydroxybenzoic acid (4-HBA) as an additive standard oleic – oleylamine pair on optical properties are discussed. 4-HBA addition...
Patterned and unpatterned films of vanadium oxide grown on dielectric substrates such as fused silica sapphire were analysed by varying the temperature using terahertz time domain spectroscopy.After investigating critical transition near 340K, a well-known cross-shaped pattern was studied to observe any resonances upon transmission.Due poor conductivity frequency selective nature structure not observed, however an etalon effect could be seen in substrate opposed above temperature.Dependence...
All-inorganic lead halide perovskite nanocrystals (NCs) show potential in optoelectronic devices, though their stability and efficiency have yet to improve. In this work, we explore the effect of bivalent metal site doping on properties CsPbX$_3$ (X = Br, Cl) NCs. First, Pb$^{2+}$ ions pristine CsPbBr$_3$ NC are partially substituted by Mn$^{2+}$ ions, alkaline earth strontium is then doped both Mn$^{2+}$-substituted particles. The structural photophysical three variants been investigated...