Relevant bibliographies by topics / I-II-III-VI QDs

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  2. Dissertations / Theses

Academic literature on the topic 'I-II-III-VI QDs'

Author: Grafiati
Published: 8 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "I-II-III-VI QDs"

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Loan, Nguyen Thu, Tran Thi Thu Huong, Ung Thi Dieu Thuy, Peter Reiss, and Nguyen Quang Liem. "ZnS shelling as the outermost layer on luminescent nanocrystals: a key strategy for quantum dot light-emitting diodes." Advances in Natural Sciences: Nanoscience and Nanotechnology 15, no. 4 (2024): 043002. https://doi.org/10.1088/2043-6262/ad8f9d.

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Abstract Highly luminescent nanocrystals (NCs), including semiconductor quantum dots (QDs), have been synthesized as light emitters for various applications during the last three decades. Recently, light-emitting diodes based on NCs or QDs (hereafter commonly called QLEDs) have been fabricated, achieving an external quantum efficiency of more than 20%, closely approaching practical requirements. In the QLED structure, the outermost shell of the luminescent NCs or QDs plays a crucial role, as it needs to simultaneously meet the following requirements: (i) to act as an effective shell to passiva
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Li, Jiayao, Tianyong Guan, Datao Tu, et al. "Highly efficient NIR-II luminescent I–III–VI semiconductor nanoprobes based on AgInTe2:Zn/ZnS nanocrystals." Chemical Communications 58, no. 13 (2022): 2204–7. http://dx.doi.org/10.1039/d1cc05533j.

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Highly efficient NIR-II luminescent nanoprobes of AgInTe2:Zn/ZnS QDs were successfully synthesized with the maximum quantum yield of 25.2%, and were employed for sensitive biodetection of xanthine oxidase with the limit of detection down to 25 nU L−1.
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Liang, Ruowen, Shihui Wang, Yi Lu, et al. "Assembling Ultrafine SnO2 Nanoparticles on MIL-101(Cr) Octahedrons for Efficient Fuel Photocatalytic Denitrification." Molecules 26, no. 24 (2021): 7566. http://dx.doi.org/10.3390/molecules26247566.

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Effectively reducing the concentration of nitrogen-containing compounds (NCCs) remains a significant but challenging task in environmental restoration. In this work, a novel step-scheme (S-scheme) SnO2@MCr heterojunction was successfully fabricated via a facile hydrothermal method. At this heterojunction, MIL-101(Cr) octahedrons are decorated with highly dispersed SnO2 quantum dots (QDs, approximate size 3 nm). The QDs are evenly wrapped around the MIL-101(Cr), forming an intriguing zero-dimensional/three-dimensional (0D/3D) S-scheme heterostructure. Under simulated sunlight irradiation (280 n
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Akiyoshi, Kazutaka, Mariko Hasegawa, Chie Miyamae, et al. "Synthesis and Near-IR Photoluminescence Property of Ag-Au-S Quantum Dots." ECS Meeting Abstracts MA2024-02, no. 51 (2024): 3558. https://doi.org/10.1149/ma2024-02513558mtgabs.

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Quantum dots (QDs), semiconductor nanoparticles, exhibit size-dependent tunable optical properties, a phenomenon known as the quantum size effect [1]. They have attracted much attention for the application to biomedical imaging, solar cells, photocatalysts, and light-emitting diodes (LEDs) [2]. Over the past few decades, extensive research has been conducted on binary QDs composed of group II–VI and IV–VI elements, such as CdTe, HgTe, and PbS. However, the toxicity associated with the content of heavy metal elements, such as Cd, Hg, and Pb, has severely restricted their practical use [3]. Rece
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Fisher, Matthew P. A., and Leo Radzihovsky. "Quantum indistinguishability in chemical reactions." Proceedings of the National Academy of Sciences 115, no. 20 (2018): E4551—E4558. http://dx.doi.org/10.1073/pnas.1718402115.

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Quantum indistinguishability plays a crucial role in many low-energy physical phenomena, from quantum fluids to molecular spectroscopy. It is, however, typically ignored in most high-temperature processes, particularly for ionic coordinates, implicitly assumed to be distinguishable, incoherent, and thus well approximated classically. We explore enzymatic chemical reactions involving small symmetric molecules and argue that in many situations a full quantum treatment of collective nuclear degrees of freedom is essential. Supported by several physical arguments, we conjecture a “quantum dynamica
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Hamidi, Nur Hidayah, Osumanu Haruna Ahmed, Latifah Omar, et al. "Charcoal and Sago Bark Ash Regulates Ammonium Adsorption and Desorption in an Acid Soil." Sustainability 15, no. 2 (2023): 1368. http://dx.doi.org/10.3390/su15021368.

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Excessive N fertilizer use in agriculture results in the release of inorganic N contaminants into surface and groundwater bodies, and other negative environmental effects. The combined application of N fertilizers with charcoal and sago bark ash could help reduce these negative impacts. The objective of this sorption study was to examine the effects of the co-application of charcoal and sago bark ash with ammonium chloride in regulating the adsorption and release of NH4+ in an acid soil. This soil used in the laboratory study was Bekenu series (Typic Paleudults). The treatments evaluated were:
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Leavy, Sebastián, Gabriela Allegretti, Elen Presotto, Marco Antonio Montoya, and Edson Talamini. "Measuring the Bioeconomy Economically: Exploring the Connections between Concepts, Methods, Data, Indicators and Their Limitations." Sustainability 16, no. 20 (2024): 8727. http://dx.doi.org/10.3390/su16208727.

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Despite its relevance, measuring the contributions of the bioeconomy to national economies remains an arduous task that faces limitations. Part of the difficulty is associated with the lack of a clear and widely accepted concept of the bioeconomy and moves on to the connections between methods, data and indicators. The present study aims to define the concepts of bioeconomy and to explore the connections between concepts, methods, data, and indicators when measuring the bioeconomy economically and the limitations involved in this process. The bioeconomy concepts were defined based on a literat
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Mgedle, Nande, Olanrewaju A. Aladesuyi, Thabang Calvin Lebepe, Vuyelwa Ncapayi, and Oluwatobi Samuel Oluwafemi. "Facile aqueous synthesis of ZnCuInS/ZnS–ZnS QDs with enhanced photoluminescence lifetime for selective detection of Cu(ii) ions." Green Processing and Synthesis 12, no. 1 (2023). http://dx.doi.org/10.1515/gps-2022-8155.

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Abstract Quaternary quantum dots (QDs) have recently gained more attention due to their low toxicity, tunable wavelength, reduced or no blueshift emission upon overcoating, improved photoluminescence (PL) quantum yield, and PL lifetime when compared to their binary (II–VI) and ternary (I–III–VI) counterparts. In this work, the aqueous synthesis of ZnCuInS/ZnS–ZnS multi-shell quaternary QDs as a nanosensor for the selective detection of Cu2+ ions was reported. The as-synthesized QDs were spherical, with a particle diameter of 3.66 ± 0.81 nm, and emitted in the first near-infrared window (725 nm
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Sheng, Pengtao, Haiyan Xu, Yaqi Zhang, Haiyue Xia, Haipeng Liu, and Weili Li. "Tailoring Photoluminescence Properties of Ternary Zn‐doped Cu─In─Se Quantum Dots via Surfactant Tuning." ChemistrySelect 9, no. 46 (2024). https://doi.org/10.1002/slct.202404170.

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AbstractThe shape and size‐controlled synthesis of colloidal I−III−VI quantum dots (QDs) can be attained only by a few synthesis strategies via the introduction of various high‐boiling‐point organic surfactants. To further investigate this strategy, in this study, we present a surfactant‐associated controlled synthesis of copper (Cu)‐deficient, zinc (Zn)‐doped Cu─indium (In)─selenium (Se) QDs, followed by a mechanistic investigation of their photophysical properties using surfactants, such as oleylamine (OLA), oleic acid (OA), and diphenylphosphine (DPP). OLA significantly promoted the quantum
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Dissertations / Theses on the topic "I-II-III-VI QDs"

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Galiyeva, Perizat. "Doped Ag-In-Zn-S and Ag-In-Ga-Zn-S QDs : synthesis and potential as dual-modality probes for magnetic resonance and fluorescence imaging of cells." Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0118.

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L’imagerie par fluorescence (IF) et l’imagerie de résonance magnétique (IRM) comptent parmi les outils de diagnostic les plus efficaces. Dans ce contexte, des QDs possédant à la fois des propriétés fluorescentes et magnétiques sont d’un grand intérêt en tant que sondes bimodales. Dans ce travail, des QDs Ag-In-Zn-S (AIZS) et Ag-In-Ga-Zn-S (AIGZS) ont été préparés et dopés afin de développer de nouvelles sondes de sondes bimodales pour l’IF et l’IRM. Des QDs AIZS très fluorescents ont été préparés en milieu organique à l’aide de DDT et d’OAm comme ligands. Les QDs Mn:AIZS possèdent des propriét
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