Recent content by photonwanderer

I know this is possible, but I do not understand how dopant concentrations interfere with the photons. Could you explain this to me?

I have a question regarding the absorption of photons in a semiconductor. Assuming I have a doped semiconductor (e.g. nitrogen in titaniumdioxide) removing electrons and creating holes. Do the created holes influence the absorption of photons and therefore have a direct impact on spectroscopic...