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A Review on the Applications of Quantum Dots in Sample Preparation.
J Sep Sci
January 2025
Department of Ocean Science, Iranian National Institute for Oceanography and Atmospheric Science, Tehran, Iran.
In recent years, despite significant advances in preconcentration and preparation techniques that have led to efficient recovery and accurate measurement of target compounds. There is still a need to develop adsorbents with unique and efficient features such as high pore volume and surface area, reactivity, easy synthesis, low toxicity, and compatibility with the environment, which increase the adsorption capacity and increase extraction efficiency. Semiconductor nanocrystals called quantum dots (QDs) with a size of less than 10 nm are three-dimensional nanoparticles with a spherical, rod, or disc structure that have significant potential in extraction as adsorbents due to their excellent properties such as low toxicity, reactivity, environmental friendliness, and hydrophilic and hydrophobic interactions.
View Article and Find Full Text PDFFabrication of Highly Fluorescent Nitrogen and Phosphorus Dual-Doped Carbon Dots for Selective Sensing of Rutin.
Luminescence
January 2025
Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt.
Based on nitrogen and phosphorus co-doped carbon dots (NP-CDs), a direct, quick, and selective sensing probe for fluorometric detection of rutin has been developed. Utilizing ethylene diamine tetra acetic acid (EDTA) as a carbon and nitrogen source and diammonium hydrogen phosphate (NH)HPO as a nitrogen and phosphorus source. The NP-CDs were synthesized in less than 3 min with a straightforward one-step microwave pyrolysis process with a high quantum yield (63.
View Article and Find Full Text PDFApplication of advanced quantum dots in perovskite solar cells: synthesis, characterization, mechanism, and performance enhancement.
Mater Horiz
January 2025
Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
Quantum dots have garnered significant interest in perovskite solar cells (PSCs) due to their stable chemical properties, high carrier mobility, and unique features such as multiple exciton generation and excellent optoelectronic characteristics resulting from quantum confinement effects. This review explores quantum dot properties and their applications in photoelectronic devices, including their synthesis and deposition processes. This sets the stage for discussing their diverse roles in the carrier transport, absorber, and interfacial layers of PSCs.
View Article and Find Full Text PDFMetal chalcogenide quantum dots for photochemical and electrochemical hydrogen generation: recent advancements and technological challenges.
Nanotechnology
January 2025
Chemistry, Jamia Millia Islamia, Jamia Nagar, New Delhi, Delhi, 110025, INDIA.
The performance of heterogeneous catalysis, specifically photochemical and electrochemical hydrogen evolution reaction fundamentally relies upon the prudent choice of catalytic systems with ideal optoelectronic and surface properties. Progressive research in materials processing has hinted at the large-scale applicability of 2D materials for achieving higher activity in the HER process. Among 2D materials, transition metal chalcogenides have emerged as the advanced materials to enhance the rate of HER on account of their layered structure and chalcogen-sites that exhibit favourable hydrogen binding energies.
View Article and Find Full Text PDFRealizing low voltage-driven bright and stable quantum dot light-emitting diodes through energy landscape flattening.
Light Sci Appl
January 2025
Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, Henan University, 475004, Kaifeng, China.
Solution-processed quantum dot light-emitting diodes (QLEDs) hold great potential as competitive candidates for display and lighting applications. However, the serious energy disorder between the quantum dots (QDs) and hole transport layer (HTL) makes it challenging to achieve high-performance devices at lower voltage ranges. Here, we introduce "giant" fully alloy CdZnSe/ZnSeS core/shell QDs (size ~ 19 nm) as the emitting layer to build high-efficient and stable QLEDs.
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