Assertion: cadmium sulfide's band gap | /r/HasProperty | ∼2.42 ev
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text: A wide and direct band gap (∼2.42 eV) coupled with n-type conductivity makes CdS suitable for application in large area optoelectronic devices such as such as solid state lasers and detectors, window layer in hetero-junction solar cells, field-effect transistors, and photoconductors.