What is the formula for cadmium telluride?
CdTe
Cadmium telluride/Formula
What is Cdsete?
Infobox references. 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.
What are the coordination numbers of Cd and Te in cadmium telluride?
A variety of Cd, Te, and CdTe lattices with coordination numbers between 4 and 12 are considered.
How is CdTe made?
Production. The most common CdTe solar cells consist of a p-n heterojunction structure containing a p-doped CdTe layer matched with an n-doped cadmium sulfide (CdS) or magnesium zinc oxide (MZO) window layer. Typical CdTe thin-film deposition techniques include vapor-transport deposition and close-spaced sublimation.
What type of semiconductor is CdTe?
CdTe is a II–VI compound semiconductor. It is a well-known light absorber.
Is CdTe a semiconductor?
2 CdTe and CdZnTe as Detector Materials. CdTe is a II–VI compound semiconductor. It is a well-known light absorber. It has band gap of 1.45 eV.
How is CdTe produced?
How does a CdTe cell work?
The CdTe film acts as the primary photoconversion layer and absorbs most visible light within the first micron of material. Together, the CdTe, intermediate, and TCO layers form an electric field that converts light absorbed in the CdTe layer into current and voltage.
Is CdTe n type or p type?
They state that undoped CdTe is p-type semiconductor, but addition of In creates n-type material. They define a narrow concentration range over which the CZT transforms from p-type to n-type.
Can CdTe PV modules pollute environment?
Large-scale implementation of CdTe PV modules do not present any risks to health and the environment, and recycling the modules at the end of their useful life completely resolves any environmental concerns.
What is the dielectric constant of a fluid?
The Dielectric Constant, or permittivity – ε – is a dimensionless constant that indicates how easy a material can be polarized by imposition of an electric field on an insulating material. The Dielectric Constant of common fluids are indicated in the table below.
Is the dielectric con Stant of water accurate?
Numerous determinations of the dielectric con stant of water have been reported in the literature during the past half century. 1 However, much of this work was not conducted with sufficient accuracy to provide data adequate for reference purposes.
What is the dielectric constant of acetaldehyde?
Some fluids and their dielectric constants or permittivities Fluid Temperature (oC) Dielectric Constant – ε – Acetal 25 3.8 Acetaldehyde 18 21.8 Acetamide 91 67.6 Acetic acid 20 6.2
When was Dorsey’s theory of the dielectric constant published?
Dorsey compiled an almost complete survey [2] of the Ii~erature published till 1940. The physical theory of the dielectric behavior of polar fluids and in particular the dielectric constant of water has been treated thoroughly and extensively [3-6].