The C9920-02 absolute quantum yield spectrometer employs photoluminescence method to measure absolute quantum yields quick and accurately. The setup comprises an excitation light source, monochromator, an integrating sphere and a CCD spectrometer for detecting the whole spectral range simultaneously. The detection range is from 300 nm to 950 nm with a bandwidth less than 10 nm (manual control of excitation wavelength). Two sample holders are available for thin films, powders and cuvettes holding liquid samples. This allows for the use of the C9920-02 system in various fields like industry, biological and academic research.