Crystal of cadmium telluride
Cadmium telluride is a chemical compound. Its chemical formula is CdTe. It contains cadmium and telluride ions.
Cadmium telluride is a black solid. It reacts with acids to make toxic cadmium compounds and toxic hydrogen telluride gas. It does not dissolve in water.
Cadmium telluride is used to make electricity in solar cells. It is one of the best things. It can be mixed with mercury to make mercury cadmium telluride, good in infrared detectors.
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Fluorescence spectra of colloidal CdTe quantum dots of various sizes, increasing approximately from 2 to 20 nm from left to right. The blue shift of fluorescence is due to quantum confinement.