Photoluminescence quantum efficiency measurement structure

The invention relates to the technical field of optical measurement, in particular to a photoluminescence quantum efficiency measurement structure. The optical module includes: an optical flat; the integrating sphere is provided with a lamp interface, an optical fiber interface, a liquid measuring port, a solid powder measuring port and a fixed end, a first magnetic attraction piece is arranged at the lamp interface, a second magnetic attraction piece is arranged at the liquid measuring port, a third magnetic attraction piece is arranged at the solid powder measuring port, and the integrating sphere is fixed on the optical flat plate based on the fixed end; the lamp assembly is used for being inserted into the lamp interface and is magnetically attracted and fixed on the integrating sphere through a first magnetic attraction piece; the liquid measuring assembly is used for being inserted into the liquid measuring opening and is magnetically attracted and fixed to the integrating sphere through a second magnet