What Does PA Stand For?

PA stands for Photoinduced Absorption

Photoinduced Absorption (PA) refers to the phenomenon in which a material absorbs light, leading to an increase in its optical density or changes in its electronic properties. This process occurs when photons are absorbed, promoting electrons to higher energy states and resulting in temporary or permanent alterations in the material's absorption characteristics. PA is widely studied in fields such as materials science, chemistry, and photophysics, and is essential for understanding light-matter interactions in various applications, including photovoltaics, sensors, and optical devices.

Other Meanings for PA