Question

What is photoluminescence? Discuss its dependence on structure of the molecules. 

26 Apr 2023
Answer :
Word Count : 469

Photoluminescence is a process by which a material absorbs light energy and subsequently emits it in the form of light. This process is often utilized in various fields such as bioimaging, optoelectronics, and sensors. Photoluminescence can be divided into two categories, namely fluorescence and phosphorescence, based on the duration of the light emission. Fluorescence is characterized by a short emission time, typically in the order of nanoseconds, while phosphorescence has a longer emission time, ranging from milliseconds to seconds.

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