Chenghui Xia
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View article: An ASIC for ToF-PET application with MCP-PMTs
An ASIC for ToF-PET application with MCP-PMTs Open
The micro-channel plate photomultiplier tube (MCP-PMT) demonstrates excellent sensitivity to single photoelectrons, with a rise time of less than 100 ps. It offers an exceptionally low transit time spread, around 10 ps for multi-photoelect…
Performance enhancement of InSnZnO thin-film transistors by modifying the dielectric–semiconductor interface with colloidal quantum dots Open
Transistors featuring ALD-grown Al 2 O 3 dielectric and sputtered ITZO semiconductor layers are enhanced by spin-coated colloidal quantum dots, which effectively passivate the dielectric/semiconductor interface, leading to performance impr…
Partially Amorphous Ru‐Doped CoSe Nanoparticles with Optimized Intermediates Adsorption for Highly Efficient Sulfur Oxidation Reaction Open
The application of thermodynamically more favorable sulfur oxidation reaction (SOR) to replace oxygen evolution reaction (OER) in electrocatalytic water electrolysis is an appealing strategy to achieve low‐energy hydrogen production while …
View article: Heteronanotrimers by Selective Photodeposition of Gold Nanodots on Janus‐Type Cu<sub>2‒</sub><i><sub>x</sub></i>S/CuInS<sub>2</sub> Heteronanocrystals
Heteronanotrimers by Selective Photodeposition of Gold Nanodots on Janus‐Type Cu<sub>2‒</sub><i><sub>x</sub></i>S/CuInS<sub>2</sub> Heteronanocrystals Open
This study focuses on the development of environmentally friendly Au‐Cu 2−x S/CuInS 2 heteronanotrimers. The chosen strategy relies on the laser photodeposition of a single gold nanodot (ND) onto Janus Cu 2− x S/CuInS 2 heteronanocrystals …
View article: Bright colloidal gallium-doped CuInS<sub>2</sub> quantum dots for luminescent solar concentrators
Bright colloidal gallium-doped CuInS<sub>2</sub> quantum dots for luminescent solar concentrators Open
Bright and stable CuInS 2 quantum dots synthesized via Ga 3+ doping combined with ZnS shelling and their use for luminescent solar concentrators. The device exhibits good transparency and a power conversion efficiency reaching 3.87%.
View article: Core–shell nanoheterodimers: laser-assisted deposition of single bimetallic Au@M (M = Au, Ag, Pd, Pt) nanodots on TiO<sub>2</sub> nanoparticles
Core–shell nanoheterodimers: laser-assisted deposition of single bimetallic Au@M (M = Au, Ag, Pd, Pt) nanodots on TiO<sub>2</sub> nanoparticles Open
The different core–shell morphologies in nanoheterodimers, which can be obtained after two-step UV laser irradiation of a TiO 2 solution containing metallic salts and role of lattice constant and work function mismatch on the shell.
Editorial: Efficient near-infrared-emitting materials: Design, synthesis, mechanisms, and applications Open
EDITORIAL article Front. Chem., 03 October 2022Sec. Physical Chemistry and Chemical Physics Volume 10 - 2022 | https://doi.org/10.3389/fchem.2022.1030420
Unraveling the Emission Pathways in Copper Indium Sulfide Quantum Dots Open
Semiconductor copper indium sulfide quantum dots are emerging as promising alternatives to cadmium- and lead-based chalcogenides in solar cells, luminescent solar concentrators, and deep-tissue bioimaging due to their inherently lower toxi…
Synthesis and Formation Mechanism of Colloidal Janus-Type Cu<sub>2<i>–x</i></sub>S/CuInS<sub>2</sub> Heteronanorods <i>via</i> Seeded Injection Open
Colloidal heteronanocrystals allow for the synergistic combination of properties of different materials. For example, spatial separation of the photogenerated electron and hole can be achieved by coupling different semiconductors with suit…
Seeded Growth Combined with Cation Exchange for the Synthesis of Anisotropic Cu<sub>2–<i>x</i></sub>S/ZnS, Cu<sub>2–<i>x</i></sub>S, and CuInS<sub>2</sub> Nanorods Open
Colloidal copper(I) sulfide (Cu2-x S) nanocrystals (NCs) have attracted much attention for a wide range of applications because of their unique optoelectronic properties, driving scientists to explore the potential of using Cu2-x S NCs as …
Förster Resonance Energy Transfer between Colloidal CuInS<sub>2</sub>/ZnS Quantum Dots and Dark Quenchers Open
Förster resonance energy transfer (FRET) using colloidal semiconductor quantum dots (QDs) and dyes is of importance in a wide range of biological and biophysical studies. Here, we report a study on FRET between CuInS2/ZnS QDs and dark quen…
Förster Resonance Energy Transfer between Colloidal CuInS2/ZnS Quantum Dots and Dark Quenchers Open
Förster resonance energy transfer (FRET) using colloidal semiconductor quantum dots (QDs) and dyes is of importance in a wide range of biological and biophysical studies. Here, we report a study on FRET between CuInS2/ZnS QDs and dark quen…
Optoelectronic Properties of Ternary I–III–VI<sub>2</sub> Semiconductor Nanocrystals: Bright Prospects with Elusive Origins Open
Colloidal nanocrystals of ternary I-III-VI2 semiconductors are emerging as promising alternatives to Cd- and Pb-chalcogenide nanocrystals because of their inherently lower toxicity, while still offering widely tunable photoluminescence. Th…
Colloidal copper indium sulfide-based (hetero)nanocrystals: Synthesis, optical properties, and use as FRET probes Open
Ternary copper indium sulfide (CuInS2) nanocrystals have drawn much attention because of their low toxicity, large absorption coefficients across a broad spectral range, and large global Stokes shifts. Moreover, they possess unparalleled p…
Size-Dependent Band-Gap and Molar Absorption Coefficients of Colloidal CuInS<sub>2</sub> Quantum Dots Open
The knowledge of the quantum dot (QD) concentration in a colloidal suspension and the quantitative understanding of the size-dependence of the band gap of QDs are of crucial importance from both applied and fundamental viewpoints. In this …
Near-Infrared-Emitting CuInS<sub>2</sub>/ZnS Dot-in-Rod Colloidal Heteronanorods by Seeded Growth Open
Synthesis protocols for anisotropic CuInX2 (X = S, Se, Te)-based heteronanocrystals (HNCs) are scarce due to the difficulty in balancing the reactivities of multiple precursors and the high solid-state diffusion rates of the cations involv…
Highly Luminescent Water-Dispersible NIR-Emitting Wurtzite CuInS<sub>2</sub>/ZnS Core/Shell Colloidal Quantum Dots Open
Copper indium sulfide (CIS) quantum dots (QDs) are attractive as labels for biomedical imaging, since they have large absorption coefficients across a broad spectral range, size- and composition-tunable photoluminescence from the visible t…