TRPL works by exciting a sample with a short pulse of light, typically from a laser, and then measuring the emitted light as a function of time. The key components of a TRPL setup include a pulsed light source, a spectrometer, and a fast detector such as a photomultiplier tube or streak camera. The time resolution of the system is crucial for capturing rapid photoluminescence decay, often on the order of picoseconds to nanoseconds.
