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An aqueous synthesis method to obtain highly luminescent cadmium telluride nanocrystals is described. We have shown water-soluble semi-conductor quantum dots with high photoluminescence quantum yield have great potential for biological applications. The spectral properties of these nanocrystals can …
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Jun 15, 2011 Cadmium telluride nanocrystals as luminescent sensitizers in flow analysis. ... The nanocrystals acted as enhancers of the weak CL emission produced upon oxidation of sulphite by Ce(IV) in acidic medium, thus improving sensitivity and expanding the …
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Semiconductor nanocrystals are interesting candidates as new light-absorbing materials for photovoltaic (PV) devices. They can be dispersed in solvents and cheaply deposited at low-temperature on various substrates. Also, the nanocrystals have unique optical properties depending on their size due to the quantum size effect and moreover it is easy to uniformly control their stoichiometry.
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Cadmium Telluride Nanocrystals: Synthesis, Growth Mode and Effect of Reaction Temperature on Crystal Structures. Nano, 3(2), 109-115. Series/Report no.: Nano: Abstract: A series of cadmium telluride (CdTe) nanocrystals were synthesized by a modified organometallic synthesis method at various reaction temperatures ranging from 130 to 250 C.
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The solvothermal synthesis of CdTe nanocrystals in dimethylformamide using cadmium lactate and sodium hydrogen telluride as precursors and 1-thioglycerol as a stabilizer is described. The resultant nanocrystals can be dispersed in the mixture solution of ammonium hydroxide, water, ethanol, and tetraethyl orthosilicate without aggregation and therefore readily encapsulated in silica ...
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Aug 29, 2011 In the present study, nanocrystals of cadmium telluride (CdTe) have been directly synthesized in poly(3-hexylthiophene) (P3HT) matrix without use of any surfactant. In situ synthesis of nanoparticles in polymer matrix improves the polymer-nanoparticles interface, which facilitates efficient electronic interaction between them. Spectral results suggest that CdTe nanocrystals are bound with …
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Feb 06, 2013 CdTe nanocrystals were synthesized by the hot-injection method with a mixture of oleylamine and octadecene as a solvent. The influence of the composition of the solvent and of the injection solution on the shape of CdTe nanoparticles was investigated. Various shapes of CdTe nanocrystals, such as nanodots, nanorods, multipods, and nanowires, could be obtained by …
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Mar 02, 2020 Cadmium telluride (CdTe) nanocrystals with thiol stabilizers have been applied widely in the fields of energy storage and transformation. The aim of this work is to develop anhydrous proton exchange membranes (PEMs) by introducing CdTe nanocrystals bearing thioglycolic acid (tga) or mercaptopropionic acid (mpa) stabilizers into sulfonated poly ...
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Aug 16, 2015 Bardeen’s light converting technique combines lead selenide nanocrystals with a carbon-based molecule called rubrene. ... for a recently commercialised solar material called cadmium telluride ...
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Synthesis of Uniform Disk-Shaped Copper Telluride Nanocrystals and Cation Exchange to Cadmium Telluride Quantum Disks with Stable Red Emission – Supporting Information Hongbo Li1, Rosaria Brescia1, Mauro Povia1, Mirko Prato1, Giovanni Bertoni1,2, Liberato Manna1 and Iwan Moreels1,*
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The gold-doped cadmium telluride (Au:CdTe) nanocrystals were synthesized by aqueous solution route using L-glutathione and L-cysteine as stabilizers. As-prepared Au:CdTe nanocrystals have good monodispersity and a zinc-blende structure. Compared with undoped CdTe nanocrystals, the Au:CdTe nanocrystals exhibited improved photostability, higher ...
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Mar 24, 2019 Cadmium telluride (CdTe) is an important semiconductor material in optoelectronics and solar cells . There is a growing interest to make one dimensional CdTe structures such as nanotubes, nanowires, nanorods and nanocables in order to optimise their electronic, optical, mechanical and catalytic properties in areas such as electronics, energy storage and nanodevices.
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Cadmium telluride nanocrystals were synthesized to form distinct shapes, notably tetrapods and nanorods. Herein, the synthesis of the nanoparticles is described, with emphasis on the different mechanisms for the two shapes. Additionally, the nanoparticles were characterized by customary techniques (i.e., UV-Vis absorption/emission and TEM), as ...
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Jun 15, 2010 We have fabricated ultrathin photovoltaic cadmium telluride (CdTe) film solar cells from colloidal nanorod solutions with a power conversion efficiency of 5.0% and internal quantum efficiency approaching unity near the band edge. Sintering of the CdTe nanorod films was necessary to facilitate grain growth and enhanced optical absorption. By analyzing electrode dependence, capacitance …
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