Cd1Se0.99S0.01

Cd₁Se₀.₉₉S₀.₀₁ is a cadmium selenide-based II-VI semiconductor with minimal sulfur doping, representing a fine-tuned variant of the cadmium selenide family commonly studied in optoelectronic research. This material is used primarily in experimental photovoltaic and quantum dot applications where bandgap engineering through compositional control is critical; the small sulfur incorporation slightly modifies the electronic structure relative to pure CdSe, making it relevant for tuning light absorption and emission in the visible to near-infrared spectrum. Engineers would select this composition when precise bandgap matching or quantum confinement effects are needed for solar cells, LED development, or photodetectors, though cadmium toxicity and regulatory constraints limit commercialization compared to cadmium-free alternatives.