A5001963599- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Organic Light-Emitting Diodes Research
- Advanced biosensing and bioanalysis techniques
- Conducting polymers and applications
- Electrochemical Analysis and Applications
- Biosensors and Analytical Detection
- Optical properties and cooling technologies in crystalline materials
- Ga2O3 and related materials
- 2D Materials and Applications
- Advanced Sensor and Energy Harvesting Materials
- Luminescence Properties of Advanced Materials
- Chalcogenide Semiconductor Thin Films
Purdue University West Lafayette
2024-2025
Yonsei University
2021-2023
Layered metal-halide perovskites, or two-dimensional can be synthesized in solution, and their optical electronic properties tuned by changing composition. We report a molecular templating method that restricted crystal growth along all crystallographic directions except for [110] promoted one-dimensional growth. Our approach is widely applicable to synthesize range of high-quality layered perovskite nanowires with large aspect ratios tunable organic-inorganic chemical compositions. These...
Halide perovskites have potential for use in next-generation low-cost, high-efficiency, and highly color-pure light-emitting diodes (LED) that can be used various applications, such as flat flexible displays solid-state lighting. However, they still lag behind other mature technologies, organic LEDs inorganic LEDs, terms of performance, particularly brightness. This is partly due to the insulating nature long-chain ligands control perovskite-film morphology. Herein, a...
Abstract 2D perovskite (PVSK) single crystals have received significant attention due to their unique optical and optoelectronic properties. However, current synthesis methods face limitations, particularly in large‐area fabrication, which remain critical barriers practical applications. In this study, the of red/green/purple‐blue‐colored PVSK nanocrystals over a large area (4‐inch wafer) fabrication high‐performance photodetector arrays are presented via facile yet efficient spray‐coating...
Abstract Metal‐halide perovskite light‐emitting diodes (PeLEDs) have shown great advancement in green, red, and near‐infrared regions with external quantum efficiencies (EQEs) exceeding 20%. However, blue PeLEDs, an essential part of displays lightings, show limited progress compared to the other color counterparts. Herein, a highly efficient pure‐blue PeLED is demonstrated by leveraging novel CsPbBr x Cl 3‐ /Cs 4 PbBr 6‐ nanocomposite film as emissive layer. The Cs phase, derived phase 3...
Abstract Metal halide perovskites show promise for next-generation light-emitting diodes, particularly in the near-infrared range, where they outperform organic and quantum-dot counterparts. However, still fall short of costly III-V semiconductor devices, which achieve external quantum efficiencies above 30% with high brightness. Among several factors, controlling grain growth nanoscale morphology is crucial further enhancing device performance. This study presents a engineering methodology...
Metal-halide perovskite nanocrystals have attracted great scientific attention in the field of light-emitting diode (LED) due to their excellent optical and electrical properties such as narrow emission linewidth, photoluminescence quantum yield approaching unity, high charge carrier mobility, halogen anion composition-dependent tunable bandgap.Over last few years, considerable progress has been achieved on red green LEDs (external efficiencies exceeding 20%), however, performance blue still...
A high-performance pure blue light emitting perovskite light-emitting diode (PeLED) based on CsPbBrxCl3−x/Cs4PbBrxCl6−x nanocomposite structure is reported by Jae-Min Myoung and co-workers in article number 2102502. By the combined effects of defect passivation shallow valence band nanocomposite, fabricated PeLED shows excellent device performance.
Electrochemiluminescence (ECL) displays have attracted significant attention because of their economic and processing advantages. However, despite these advantages, low luminous efficiency presents difficulties in commercialization. To overcome this issue, a catalytic-activity-driven approach using Pt nanoparticles (NPs) anchored on CuO nanorod (NR) electrodes (PCNEs) is introduced. The NPs facilitated the electron-transfer processes ECL reaction, catalytic activity was maximized by...
Perovskite nanocrystals (PeNCs) have attracted considerable interest in light-emitting diodes (LEDs) owing to their unique optoelectronic properties. Although significant progress has been made green and red perovskite LEDs (PeLEDs) with PeNCs, the performance of blue PeLEDs is still limited. The main obstacles for based on PeNCs are Cl vacancy-induced low quantum efficiency mixed halide (Br/Cl) systems high electrical resistance from long organic capping ligands. In this study, overcome...