Microwave-assisted synthesis of highly photoluminescent core/shell CuInZnSe/ZnS quantum dots as photovoltaic absorbers

Nanoscale Advances, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A microwave-assisted synthesis of water-dispersible core/shell Cu–In–Zn–Se/ZnS QDs and their potential as absorbers for QDSSCs.

Language: Английский

---

Research Progress on Quantum Dot-Embedded Polymer Films and Plates for LCD Backlight Display

Polymers, Journal Year: 2025, Volume and Issue: 17(2), P. 233 - 233

Published: Jan. 17, 2025

Abstract: Quantum dot–polymer composites have the advantages of high luminescent quantum yield (PLQY), narrow emission half-peak full width (FWHM), and tunable spectra, broad application prospects in display lighting fields. Research on dots embedded polymer films plates has made great progress both synthesis technology optical properties. However, due to shortcomings dots, such as cadmium selenide (CdSe), indium phosphide (InP), lead halide perovskite (LHP), poor water, oxygen, light stability, incapacity for large-scale synthesis, their practical is still restricted. Various polymers, methyl methacrylate (PMMA), polyethylene terephthalate (PET), polystyrene (PS), polyvinylidene fluoride (PVDF), polypropylene (PP), etc., are widely used packaging dot materials because plasticity, simple curing, chemical good compatibility with materials. This paper focuses development field backlight displays, summarizes expounds strategies, advantages, disadvantages different materials, provides inspiration optimization promotes wide-color-gamut display.

Language: Английский

---

Stability of photoelectrochemical cells based on colloidal quantum dots

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review gives systematic analysis of degradation reasons QD-based PEC cell and strategies improving stability from aspects including band structure, shapes, ligands QDs, QDs’ matrix, co-catalysts, encapsulation counter-electrodes.

Language: Английский

---

Flexible and Wearable Devices Based on Colloidal Quantum Dots

Advanced Materials Technologies, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

Abstract A significant class of semiconductor nanostructures, colloidal quantum dots (CQDs), which exhibit narrow emission spectrum and tunable frequency, are utilized for numerous flexible wearable applications including state‐of‐the‐art display, biological sensing, showcasing great prospects in physiological measurement, health monitoring, rehabilitation. Interestingly, synthesizing these particles using methods such as hot injection colloids can directly tune their optical properties wavelengths by controlling sizes, greatly contributes to materials production simplicity scalability. Importantly, from a device perspective, due the advantages solution‐processed synthesis, patterning inkjet printing, CQDs be combined with soft polymeric substrates, or hierarchical structures facile manner, offering extraordinary flexibility portability. As optoelectronic devices, CQD function photoresistors, phototransistors, through other mechanisms convert light between forms energy, enabling highly sensitive detection applications. In this Review, synthetic approaches summarized CQDs, fabrication techniques, mechanisms, application scenarios. Furthermore, challenges associated technologies, stability cost‐efficiency discussed, present outlook on future trends devices multi‐functional integration, constituent component devices.

Language: Английский

---

Biointerfacing with AgBiS₂ Quantum Dots for Pseudocapacitive Photostimulation

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Abstract Optoelectronic biointerfaces have emerged as a promising platform for controlling the nervous system at cellular, tissue, and organ levels with potential clinical applications via transduction of light energy to ionic currents. To improve charge injection, supercapacitor materials like IrO x , TiN, PEDOT been incorporated an additional layer on photodiodes electrode–electrolyte interfaces. Here, bioelectronic design is demonstrated where AgBiS 2 quantum dots (QDs) serve photoabsorption material, hole transport medium, pseudocapacitive interface. The power‐law behavior anodic cathodic peaks suggests that diffusion‐controlled capacitive processes contribute storage mechanism. Furthermore, 3D Bode capacitance maps phase angle responses indicate high 3.3 mF cm⁻ half‐wave (0.044 V vs Ag/AgCl) in artificial cerebrospinal fluid (aCSF). For efficient electrical stimulation, QDs are embedded onto ZnO nanowires (NWs) photovoltaic device architecture, which produces twice photocurrent (1.9 ± 0.3 mA ) nearly three times injection (29 2.3 µC compared planar devices without NWs. Moreover, photostimulation hippocampal neurons inducing significant oxidative stress. This study demonstrates unconventional optoelectronic nanocrystals.

Language: Английский

---

Synergistic interfacial engineering of SrTiO3-x/ZnxNi1-xIn2S4 hetero-nanofibers for enlarging the band bending and boosting photocatalytic hydrogen evolution

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111015 - 111015

Published: April 1, 2025

Language: Английский

---

Near‐Infrared Emissive CuInS₂/ZnS Quantum Dot‐Embedded Polymer Scaffolds for Photon Upconversion Imaging

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Abstract A facile synthesis and application of photon upconversion (UC) probes, CuInS₂/ZnS quantum dots (nCIS QDs) is presented, which exhibits near‐infrared (NIR) spectral emission. The nCIS QDs are synthesized via a template‐assisted cation‐exchange reaction during heating process, resulting in NIR‐I emission with large Stokes shift (≈650 meV) high photoluminescence yield (PLQY, ≈0.95). This behavior attributed to mechanism that produces wurtzite crystal structure deep defect states, leading relatively long fluorescence lifetime (≈5 µs ). confinement effect allows for the light at different wavelengths by adjusting size nanocrystals. Moreover, their states facilitate UC self‐trapping triplet‐triplet annihilation mechanism. promising potential explored imaging, demonstrating high‐contrast NIR imaging under IR vision modules, even presence interference layers. It suggests applications surgical guidance future biomedical imaging.

Language: Английский

---

Carbon dots in the center of the spotlight: A full evaluation of their synthesis and understanding of their fundamental properties and applications

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: 27, P. 100937 - 100937

Published: Aug. 3, 2024

Language: Английский

---

Eco-friendly fabrication and luminescent properties of flexible Ag-In-Zn-S/ZnS QD-WPU composite film

Polymer, Journal Year: 2024, Volume and Issue: unknown, P. 127975 - 127975

Published: Dec. 1, 2024

Language: Английский

---

Heavy metal-free colloidal quantum dots: preparation and application in infrared photodetectors

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Heavy metal-free colloidal quantum dots (CQDs) are ideal materials for overcoming heavy metal problems. In this paper, the synthesis progress of CQDs and their phased research in field multi-type infrared detection reviewed.

Language: Английский

---