Cadmium Telluride Nanocrystals


Cadmium telluride - Wikipedia

Cadmium telluride It is mainly used as the semiconducting material in cadmium telluride photovoltaics and an infrared optical window It is usually sandwiched with cadmium sulfide to form a p-n junction solar PV cell Typically, CdTe PV cells use a n-i-p structure


CADMIUM TELLURIDE NANOCRYSTALS - worldscientific

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 In this method, octadecylamine (ODA) was introduced as an additional coordinating component to the mixture of trioctylphosphine oxide (TOPO) and trioctylphosphine (TOP)


Encapsulation of cadmium telluride nanocrystals within

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


Synthesis and Surface Chemistry of Cadmium Carboxylate

Isolated nanocrystals have carboxylate ligands (21–47 nm–2) that can be displaced along with excess cadmium ions using low concentrations of N,N,N′,N′-tetramethylethylenediamine (TMEDA) …


Direct encoding of silica submicrospheres with cadmium

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, …


Encapsulation of cadmium telluride nanocrystals within

The encapsulation of crystal structures of cadmium telluride within small diameter single walled nanotubes (SWNTs) are studied using density functional theory with a dispersion correction (DFT + D)


Cadmium telluride - Wikipedia

Cadmium telluride (CdTe) is a stable crystalline compound formed from cadmium and tellurium It is mainly used as the semiconducting material in cadmium telluride photovoltaics and an infrared optical window It is usually sandwiched with cadmium sulfide to form a p-n junction solar PV cell Typically, CdTe PV cells use a n-i-p structure


Encapsulation of cadmium telluride nanocrystals within

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


Encapsulation of cadmium telluride nanocrystals within

The encapsulation of crystal structures of cadmium telluride within small diameter single walled nanotubes (SWNTs) are studied using density functional theory with a dispersion correction (DFT + D)


Self-Assembly of CdTe Nanocrystals into Free-Floating

Oct 13, 2006 · Sheets of cadmium telluride particles can be assembled in a solvent without the usual constraint provided by a template or patterned surface


(PDF) Synthesis and characterization of cadmium telluride

PDF | The CdTe nanocrystals (NCs) were synthesized by the paraffin route method using paraffin liquid, oleic acid and trioctylphosphine (TOP) as precursor solvents


Synthesis of Uniform Disk-Shaped Copper Telluride

Synthesis of Uniform Disk-Shaped Copper Telluride Nanocrystals and Cation Exchange to Cadmium Telluride Quantum Disks with Stable Red Emission ACS AuthorChoice - This is an open access article published under an ACS AuthorChoice , which permits copying and redistribution of the article or any adaptations for non-commercial purposes


CAS No 1306-25-8 | Sigma-Aldrich

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Synthesis of Uniform Disk-Shaped Copper Telluride

We present the synthesis of novel disk-shaped hexagonal Cu2Te nanocrystals with a well-defined stoichiometric composition and tunable diameter and thickness Subsequent cation exchange of Cu to Cd at high temperature (180 °C) results in highly fluorescent CdTe nanocrystals, with less than 1 mol % of residual Cu remaining in the lattice The procedure preserves the overall disk shape, but is


Cadmium Telluride (CdTe) Semiconductors - AZoM

Description Cadmium telluride is a crystalline compound formed from cadmium and tellurium It is sandwiched with calcium sulfide to form a p-n junction photovoltaic solar cell It has very low solubility in water, and is etched by many acids such as hydrobromic and hydrochloric acids It is commercially available as powder or crystals


CADMIUM TELLURIDE QUANTUM DOTS - Pan Stanford

Quantum dots or nanocrystals are nanoscale semiconductor materials in which the electronic properties are strongly changed due to quantum confinement effects These quantum dots exhibit the well-known effect of having a bandgap energy that depends on the size of the dot itself Cadmium telluride quantum dots


One‐Pot Synthesis of CdTe Nanocrystals and Shape Control

Taking shape: Highly fluorescent CdTe nanocrystals were obtained in a one‐pot aqueous synthesis with air‐stable Na 2 TeO 3 as the Te source Luminescent 1D nanowires (see confocal image) and 3D microhexagonal columns of CdTe–cystine nanocomposites were also prepared


Shape Control of CdTe Nanocrystals: Influence of the

Various shapes of CdTe nanocrystals, such as nanodots, nanorods, multipods, and nanowires, could be obtained by changing the reaction conditions Tuning the reactivity of both the cadmium and the tellurium precursors at the same time was found to be the main reason for the shape control of CdTe nanocrystals in this reaction system


Semiconductor Nanocrystals: Structure, Properties, and

Feb 16, 2010 · Semiconductor nanocrystals are tiny crystalline particles that exhibit size-dependent optical and electronic properties 1-3 With typical dimensions in the range of 1-100 nm, these nanocrystals bridge the gap between small molecules and large crystals, displaying discrete electronic transitions reminiscent of isolated atoms and molecules, as


Cadmium Telluride Quantum Dots - NN-Labs

Cadmium Telluride Quantum Dots Cadmium Telluride (CdTe) quantum dots are of particular interest in the research and development of thin film solar cells because they may be coated onto thin, flexible substrates to reduce the overall size and mass of the cell when compared to traditional silicon PV cells


Cadmium Telluride (CdTe) Semiconductors - AZoM

Cadmium telluride is a crystalline compound formed from cadmium and tellurium It is sandwiched with calcium sulfide to form a p-n junction photovoltaic solar cell It has very low solubility in water, and is etched by many acids such as hydrobromic and hydrochloric acids It is commercially


Cadmium telluride (CdTe) - Advanced Solar Training Courses

Chemical properties CdTe has a vapor pressure of zero at ambient temperatures CdTe is more stable than its parent compounds cadmium and tellurium and most other Cd compounds, due to its high melting point and insolubility Cadmium telluride is commercially available as a powder, or as crystals It can be made into nanocrystals


SYNTHESIS, CHARACTERIZATION AND …

Semiconducting cadmium telluride nanocrystals are a great attractive material for fundamental research and applications in optoelectronic and photovoltaic devices, including in the fields of thermoelectric, electronic, optical, catalyst, biological and magnetic [1, 2]


(262f) Chloride Surface Modified Cadmium Telluride

Nov 05, 2013 · Semiconductor nanocrystals (NCs) are of great scientific and commercial interest due to their optoelectronic properties However, improvements in nanocrystals for solar cell applications, specifically cadmium telluride, require the ability to controllably manipulate their surface


Cadmium telluride nanocrystals : synthesis, growth mode

Cadmium telluride nanocrystals : synthesis, growth mode and effect of reaction temperature on crystal structures


Luminescence Properties of Thiol-Stabilized CdTe …

The luminescence of the CdTe nanocrystals shows both a sharp exciton band and a wide band of emission via trap states The trap luminescence band is substantially quenched when the temperature is increased from 77 to 290 K, which manifests itself in both steady-state emission spectra and luminescence decay kinetics


Cadmium Telluride Quantum Dots | Advances and Applications

Apr 19, 2016 · Cadmium Telluride Quantum Dots Advances and Applications Edited By John Donegan, Yury Rakovich Edition 1st Edition First Published 2013 Emission of CdTe Nanocrystals Coupled to Microcavities View abstract chapter 6 | 32 pages Biological Applications of Cadmium Telluride Semiconductor Quantum Dots


Cadmium Telluride Powder & Crystal (CdTe) - Reade

Description Cadmium telluride (CdTe) is a crystalline compound formed from cadmium and tellurium It is a black cubic crystalline powder It is used as an infrared optical window and a solar cell material It is usually sandwiched with cadmium sulfide to form a p-n junction photovoltaic solar cell Typically, CdTe cells use a n-i-p structure


Optical and structural characterization of oleic acid

Summary This work presents results of the optical and structural characterization of oleic acid-stabilized cadmium telluride nanocrystals (CdTe-NC) synthesized by an organometallic route After being cleaned, the CdTe-NC were dispersed in toluene to obtain an ink-like dispersion, which was drop-cast on glass substrate to deposit a thin film


Semiconductor Nanocrystals: Structure, Properties, and

Feb 16, 2010 · Semiconductor nanocrystals are tiny light-emitting particles on the nanometer scale Researchers have studied these particles intensely and have developed them for broad applications in solar energy conversion, optoelectronic devices, molecular …


In-Situ growth of cadmium telluride nanocrystals in poly(3

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


Cadmium telluride nanocrystals as luminescent sensitizers

A fully automated multipumping flow system (MPFS) using water-soluble CdTe quantum dots (QD) as sensitizers is proposed for the chemiluminometric determination of the anti-diabetic drugs gliclazide and glipizide in pharmaceutical formulations


CdTe Cadmium Telluride crystals - Del Mar Photonics

Cadmium telluride is commercially available as a powder, or as crystals It can be made into nanocrystals Toxicity Cadmium telluride is toxic if ingested, if its dust is inhaled, or if it is handled improperly (ie without appropriate gloves and other safety precautions)


Nanocrystal - Wikipedia

A nanocrystal is a material particle having at least one dimension smaller than 100 nanometres, based on quantum dots (a nanoparticle) and composed of atoms in either a single-or poly-crystalline arrangement