Bibliografie tematiche / AgInS₂/ZnS

Letteratura scientifica selezionata sul tema "AgInS₂/ZnS"

Autore: Grafiati

Pubblicato: 8 giugno 2024

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Articoli di riviste sul tema "AgInS₂/ZnS":

Chen, Siqi, Violeta Demillo, Minggen Lu e Xiaoshan Zhu. "Preparation of photoluminescence tunable Cu-doped AgInS2 and AgInS2/ZnS nanocrystals and their application as cellular imaging probes". RSC Advances 6, n. 56 (2016): 51161–70. http://dx.doi.org/10.1039/c6ra09494e.

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Kowalik, Patrycja, Sebastian G. Mucha, Katarzyna Matczyszyn, Piotr Bujak, Leszek M. Mazur, Andrzej Ostrowski, Angelika Kmita, Marta Gajewska e Adam Pron. "Heterogeneity induced dual luminescence properties of AgInS2 and AgInS2–ZnS alloyed nanocrystals". Inorganic Chemistry Frontiers 8, n. 14 (2021): 3450–62. http://dx.doi.org/10.1039/d1qi00566a.

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In the PL spectra of heterogeneous nanocrystals (In₂S₃–AgInS₂ and In₂S₃–AgInS₂–ZnS) two distinctly different peaks could be found at 430 and 710–515 nm.

Shamirian, Armen, Oliver Appelbe, Qingbei Zhang, Balaji Ganesh, Stephen J. Kron e Preston T. Snee. "A toolkit for bioimaging using near-infrared AgInS2/ZnS quantum dots". Journal of Materials Chemistry B 3, n. 41 (2015): 8188–96. http://dx.doi.org/10.1039/c5tb00247h.

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Chevallier, Théo, Gilles Le Blevennec e Frédéric Chandezon. "Photoluminescence properties of AgInS2–ZnS nanocrystals: the critical role of the surface". Nanoscale 8, n. 14 (2016): 7612–20. http://dx.doi.org/10.1039/c5nr07082a.

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Jagadeeswararao, Metikoti, Sunita Dey, Angshuman Nag e C. N. R. Rao. "Visible light-induced hydrogen generation using colloidal (ZnS)0.4(AgInS2)0.6 nanocrystals capped by S2− ions". Journal of Materials Chemistry A 3, n. 16 (2015): 8276–79. http://dx.doi.org/10.1039/c5ta01240f.

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Non-toxic and visible-light active S²⁻-capped (ZnS)_0.4(AgInS₂)_0.6 nanocrystals exhibit high photocatalytic activity for H₂ evolution from water without requiring any co-catalyst.

Fahmi, Mochamad Zakki, Keng-Liang Ou, Jem-Kun Chen, Ming-Hua Ho, Shin-Hwa Tzing e Jia-Yaw Chang. "Development of bovine serum albumin-modified hybrid nanoclusters for magnetofluorescence imaging and drug delivery". RSC Adv. 4, n. 62 (2014): 32762–72. http://dx.doi.org/10.1039/c4ra05785f.

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Magnetofluorescent nanoclusters containing oil-soluble nanoparticles of MnFe₂O₄ and AgInS₂–ZnS QDs are prepared. The nanoclusters possess photoluminescent and magnetic properties as well as an excellent specific targeting and drug delivery capability on HeLa cancer cell.

Zhao, Peng, Jing Zhang, Yihua Zhu, Xiaoling Yang, Xin Jiang, Yuan Yuan, Changsheng Liu e Chunzhong Li. "A novel strategy for the aqueous synthesis of down-/up-conversion nanocomposites for dual-modal cell imaging and drug delivery". J. Mater. Chem. B 2, n. 47 (2014): 8372–77. http://dx.doi.org/10.1039/c4tb01445f.

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A highly efficient multifunctional nanoplatform for dual-modal luminescence imaging and pH-responsive drug delivery has been developed on the basis of a facile and novel strategy by covalently binding up-conversion luminescent NaYF₄:Yb,Er nanoparticles with down-conversion fluorescent AgInS₂–ZnS quantum dots.

Мазинг, Д. С., Н. М. Романов, В. А. Мошников, О. А. Александрова e О. А. Корепанов. "Исследование спектров фотолюминесценции нанокристаллов AgInS-=SUB=-2-=/SUB=-/ZnS при воздействии γ-излучения". Письма в журнал технической физики 45, n. 21 (2019): 34. http://dx.doi.org/10.21883/pjtf.2019.21.48471.17948.

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The effect of different doses of γ-radiation from a 137Cs source on photoluminescence of Ag-In-S nanocrystals covered with a shell of wider bandgap ZnS was investigated. The dynamics of changes in the nanocrystals photoluminescence depending on the dose of γ-radiation was shown. It was established that the AgInS2 / ZnS nanoparticles retain their photoluminescent properties and colloidal stability upon reaching the absorbed dose of 6 • 10^3 Gy (to water). Residual photoluminescence persisted when the absorbed dose reached 10^6 Gy. It was shown that AgInS2 / ZnS nanocrystals can be used in medical and biological studies in which increased resistance to gamma radiation is needed.

Kurshanov, D. A., Yu A. Gromova, S. A. Cherevkov, E. V. Ushakova, T. K. Kormilina, A. Dubavik, A. V. Fedorov e A. V. Baranov. "Non-toxic ternary quantum dots AgInS-=SUB=-2-=/SUB=- and AgInS-=SUB=-2-=/SUB=-/ZnS: synthesis and optical properties-=SUP=-*-=/SUP=-". Журнал технической физики 125, n. 12 (2018): 844. http://dx.doi.org/10.21883/os.2018.12.46949.248-18.

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Takayama, Tomoaki, Ko Sato, Takehiro Fujimura, Yuki Kojima, Akihide Iwase e Akihiko Kudo. "Photocatalytic CO2 reduction using water as an electron donor by a powdered Z-scheme system consisting of metal sulfide and an RGO–TiO2 composite". Faraday Discussions 198 (2017): 397–407. http://dx.doi.org/10.1039/c6fd00215c.

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CuGaS₂, (AgInS₂)_x–(ZnS)_2−2x, Ag₂ZnGeS₄, Ni- or Pb-doped ZnS, (ZnS)_0.9–(CuCl)_0.1, and ZnGa_0.5In_1.5S₄ showed activities for CO₂ reduction to form CO and/or HCOOH in an aqueous solution containing K₂SO₃ and Na₂S as electron donors under visible light irradiation. Among them, CuGaS₂ and Ni-doped ZnS photocatalysts showed relatively high activities for CO and HCOOH formation, respectively. CuGaS₂ was applied in a powdered Z-scheme system combining with reduced graphene oxide (RGO)-incorporated TiO₂ as an O₂-evolving photocatalyst. The powdered Z-scheme system produced CO from CO₂ in addition to H₂ and O₂ due to water splitting. Oxygen evolution with an almost stoichiometric amount indicates that water was consumed as an electron donor in the Z-schematic CO₂ reduction. Thus, we successfully demonstrated CO₂ reduction of artificial photosynthesis using a simple Z-scheme system in which two kinds of photocatalyst powders (CuGaS₂ and an RGO–TiO₂ composite) were only dispersed in water under 1 atm of CO₂.

Più fonti

Tesi sul tema "AgInS₂/ZnS":

Mrad, Maroua. "Nouveaux procédés de synthèse en milieu aqueux de quantum dots ternaires AgInS₂ (AIS) et quaternaires AgInS₂/ZnS (AIZS). Dopage de ces nanocristaux par Ni²⁺ ou Co²⁺. Application à la photocatalyse hétérogène". Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0119.

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Les quantum dots (QDs) ont un fort potentiel pour la détection biologique, le photovoltaïque et la catalyse en raison de leurs propriétés photophysiques uniques. Les semiconducteurs les plus étudiés contiennent des métaux lourds comme le cadmium et le plomb et leurs domaines d’applications sont très limités. Dans le cadre de cette thèse, nous avons développé de nouveaux procédés de synthèse en milieu aqueux des QDs ternaires AgInSAgInS₂ et quaternaires AgInS₂/ZnS et avons étudié leur dopage par les cations Ni²⁺ et Co²⁺ afin de préparer des nanocristaux dotés de propriétés fluorescentes et magnétiques. Nous avons tout d’abord optimisé la synthèse des QDs AIZS en milieu aqueux en utilisant le 3-MPA comme ligand et avons produit des nanocristaux avec un rendement quantique de fluorescence de 65%. Puis, le dopage de ces nanocristaux par les cations Ni(+2) et Co(+2) a été étudié. Une chute du rendement quantique de fluorescence est observée après le dopage. Les meilleures propriétés magnétiques ont été observées à basse température (10 K) et les valeurs d'aimantation augmentent avec la concentration en dopant. Les QDs AIZS ont été associés aux nanotiges ZnO par hétérojonction pour former un bon photocatalyseur ZnO/AIZS(10%) qui dégrade 98% de l’Orange II en visible dans 90min sous intensité 40W/cm². Ce matériau est recyclable, vu que son activité photocatalytique ne baisse que légèrement après 8 cycles (91% de photodégradation)
Quantum dots (QDs) have high potential for biological detection, photovoltaics and catalysis due to their unique photophysical properties. The most studied semiconductors contain heavy metals such as cadmium and lead and their fields of application are very limited. As part of this thesis, we developed new aqueous synthesis processes for ternary QDs AgInS₂ and quaternary AgInS₂/ZnS and studied their doping by the Ni(+2) and Co(+2) cations to prepare nanocrystals with fluorescent and magnetic properties. We first optimized the synthesis of AIZS QDs in aqueous media using 3-MPA as ligand and produced nanocrystals with a fluorescence quantum yield of 65%. Then, the doping of these nanocrystals by cations Ni(2+) and Co(2+) was studied. A drop in quantum fluorescence efficiency is observed after doping. The best magnetic properties were observed at low temperature (10 K) and the magnetization values increase with the dopant concentration. The AIZS QDs have been associated with the ZnO nanorods by heterojunction to form a good photocatalyst ZnO/AIZS(10%) which degrades 98% of the Orange II in visible during 90 min under intensity 40 W/cm². This material can be reused, its photocatalytic activity only slightly decreases after 8 cycles (91% photodegradation)

Atti di convegni sul tema "AgInS₂/ZnS":

Kurassova, K., N. A. Filatov, G. Alexan, A. I. Dadadzhanova, D. R. Dadadzhanov, N. A. Toropov e T. A. Vartanyan. "Microfluidic Fabrication of Polymeric Microspheres Doped with Quantum Dots for Biosensors". In Optical Sensors. Washington, D.C.: Optica Publishing Group, 2023. http://dx.doi.org/10.1364/sensors.2023.sm3d.3.

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Polyacrylamide microspheres doped with AgInS/ZnS quantum dots were fabricated via microfluidics dripping method. The average size of microspheres is 68 µm that is suitable for the whispering gallery mode excitations and further use as biosensors.