spectroscopy measurments

photoluminescence spectroscopy，

266nm continous UV laser for photoluminescence spectroscopy

Photoluminescence spectroscopy, often referred to as PL, is when light energy, or photons, stimulate the emission of a photon from any matter. … The photo-excitation causes the material to jump to a higher electronic state, and will then release energy, (photons) as it relaxes and returns to back to a lower energy level.

Photoluminescence spectroscopy is a contactless, nondestructive method of probing the electronic structure of materials. Light is directed onto a sample, where it is absorbed and imparts excess energy into the material in a process called photo-excitation.

What is photoluminescence spectroscopy used for?

Image result for photoluminescence spectroscopy
Photoluminescence spectroscopy is a widely used technique for characterisation of the optical and electronic properties of semiconductors and molecules. In chemistry, it is more often referred to as fluorescence spectroscopy, but the instrumentation is the same.

Video tutorials Photoluminescence Spectroscopy Using a Raman Spectrometer