A5050453072- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Conducting polymers and applications
- Advanced Photocatalysis Techniques
- Chalcogenide Semiconductor Thin Films
- Gas Sensing Nanomaterials and Sensors
- Solid-state spectroscopy and crystallography
- Luminescence Properties of Advanced Materials
Yeungnam University
2021-2023
Current efforts to reduce the density of structural defects such as surface passivation, doping, and modified synthetic protocols have allowed us grow high-quality perovskite nanocrystals (PNCs). However, role purity precursors involved during PNC synthesis hinder emergence has not been widely explored. In this work, we analyzed use different crystallization processes PbX2 (X = Cl– or I–) purify chemicals produce highly luminescent stable CsPbCl3–xBrx CsPbI3 PNCs. The a hydrothermal (Hyd)...
In modern society, high-quality material development and a large stable supply are key to perform frontier research development. However, there negative issues address utilize resources with for research, such as economic accessibility, commercialization, so on. One of the cutting-edge fields, perovskite-related usually requires chemicals outstanding purity (>99%). We developed an economically feasible PbI2 precursor around 1/20 cost-down perovskite/perovskite quantum dots through...
All-inorganic lead-halide perovskite quantum dots (PQDs) (CsPbX 3 , where X is Cl, Br, or I) have been used successfully in optoelectronic applications, such as solar cells, light-emitting diodes, photocatalysts, and lasers. These PQDs work under electrochemical bias and/or illumination with charge separation/collection by interacting the charge-transport medium. In this study, we discuss spectroelectrochemical characteristics of to understand oxidation reduction processes that occur during...
Organic-inorganic hybrid perovskites are widely utilized in solar driven chemistry such as photocatalysis, hydrogen evolution, and oxygen reduction. Hybrid contain various components with high polarity and/or charge values, which undergo transformations due to ion exchange, photoinduced phase segregation, or migration. These variable characteristics make "soft materials". Meanwhile, optoelectronic devices often operate under electrochemical reactions the presence of an electrical field. To...
Making high-quality raw materials is the key to open versatile potential of next generation materials. All-inorganic CsPbX3 (X: Cl−, Br−, and/or I−) perovskite quantum dots (PQDs) have been applied in various optoelectronic devices, such as photocatalysis, hydrogen evolution, solar cells, and light-emitting diodes, due their outstanding photophysical properties, high photoluminescence yield (PLQY), absorption cross-section, efficient charge separation, so on. Specifically, for further...
Multidimensional ABX3 hybrid perovskites three-dimensionally confined dot-shaped structure demonstrate versatile potential to photoelectrochemical cells for water splitting, hydrogen generation, solar cells, and light-emitting diodes. To apply perovskite quantum dots (PQDs) solar-driven chemistry optoelectronic devices, understanding the photoinduced charge carrier dynamics of PQDs under electrochemical conditions or applied bias are important. In this study, detailed transformation...