CD Bioparticles provides a wide range of InP/ZnS quantum dots with emission range from 500 nm to 800 nm. Due to large exciton Bohr radius, and high emitting efficiency, InP quantum dots present similar optical properties to II-IV type semiconductors quantum dots, including size tunable absorption and emission spectra in the visible and near infrared (NIR) wavelength range, but with reduced toxicity. Our core-shell structured InP/ZnS quantum dots have uniform size distribution, high quantum yield and good stability, which can be applied to a variety of applications, such as biomarkers, photovoltaic devices, solar cells and LEDs.