Uses: Preparation of flexible transparent conductive coatings essential for fabrication of a variety of printed electronic devices such as flexible displays and solar cells Prepare a composite CdS-ZnS/Zirconium-titanium phosphate (ZTP) photocatalyst for hydrogen production under visible light Prepare light-controlled bioelectrochemical sensors based on CdSe/ZnS quantum dots Catalyst for photocatalytic degradation of organic pollutants Preparation of color tunable light-emitting diodes (LEDs) Prepare (CdS-ZnS)-TiO2 combined photocatalysts for electricity production via photoelectrocatalysis Catalyst for synthesis of spirooxindole derivatives in aqueous medium via Knoevenagel condensation followed by Michael addition Prepare CdSe/ZnS q uantum dots for chemiluminescent and chemiluminescence resonance energy transfer (CRET) detection of DNA, metal ions, and aptamer-substrate complexes Preparation of ZnS nanocrystals for ultrasensitive protein detection in terms of multiphonon resonance Raman scattering Zinc sulfide finds applications in anti-reflection coating. The use of anti-reflection coating using ZnS has been known to increase the efficiency of solar cells as well.