What Does TPY Stand For?

TPY stands for Total Photon Yield

Total Photon Yield (TPY) is a quantitative measure used to assess the effectiveness of a light-emitting process, such as in photonic devices or fluorescent materials. It represents the total number of photons emitted per excitation event, serving as an important metric in evaluating the performance of optical systems, photodetectors, and light sources. Higher TPY values indicate greater efficiency and better performance in converting energy into light.