Zinc telluride films

Flan DFl, Choi SJ, Park SM (2003) Electrochemical preparation of zinc telluride films on gold electrodes. J Electrochem Soc 150 C342... 

Zinc telluride, ZnTe, was deposited on quartz, silicon, InAs, and GaSb substrates using Zn[TeSi(SiMe3)3]2 at temperatures between 250 °C and 350 °C. On InAs (orientation not specified) a cubic ZnTe layer was obtained. Problems of stoichiometry are encountered at temperatures below 325 °C because decomposition of the precursor is incomplete, while at higher temperatures (above 350 °C) the deposited ZnTe decomposes into Zn (which evaporates) and involatile elemental tellurium which remains. The results with the analogous cadmium precursor (1.4 torr, 290 °C) indicate that the CdTe films may be of better stoichiometry than those of ZnTe, with XRD results indicating that on a Si substrate the hexagonal phase is predominantly... 

The electrochemical formation of zinc selenide from acidic solutions [485] and electrodeposition of zinc telluride thin films, its properties, and photoelectro-chemical applications were presented and discussed by Mahalingam et al. [486, 487]. 

Zinc selenide (yellow) and telluride (brown) have similar stractures to those of the sulfide, both existing in both wurtzite and zinc blende modifications. The selenide is used with zinc sulfide as a phosphor. It has the interesting property that it can act as a bine-green solid state laser bine-green laser action in solids is rare (most solid-state lasers function towards the red end, 635 nm or more, of the spectrum). At room temperature, laser action with the selenide at a wavelength of 525 nm (green) is observed and at -196°C at 495 nm (bine). Unfortunately the laser is relatively short-lived. Zinc telluride is a wide band gap semicondnctor whose electron transport properties in the form of thin films of stoichiometric and nonstoichiometric forms have been mnch studied. Its applications in optoelectronics, for example, as an optical recording material, have been reviewed. ... 

Neumann-Spallart M, Kraugstein C (1995) Electrodeposition of zinc telluride. Thin Solid Films 265 33... 

Mahalingam T, John VS, Rajendran S, Ravi G, Sebastian PJ (2002) Annealing studies of electrodeposited zinc telluride thin films. Surf Coat Technol 155 245... 

Another exciting thin-film company is FirstSolar (www.firstsolar.com). First Solar claimed to achieve a manufacturing cost of only 1.08 per watt during the third quarter of 2008. The company uses cadmium telluride as a semiconducting material, which is a byproduct of the mining and production of base metals such as zinc and copper. First Solar has entered into many excellent long-term sales agreements with major electric utility companies. 

Magnesium telluride MgTe 3.49 RT Epitaxial films, photoluminescence, zinc blende structure... 

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