Five multiple-choice questions – set by children – to test your knowledge, and a chance to submit your own junior brainteasers for future quizzes ​ ...

The Colors Festival returns within Paris proper, and this time it plays with light. From April 16 to July 26, 2026, Colors ...

Fig. 1 (a) Steady-state UV-Vis absorption and photoluminescence (PL) emission spectra obtained in degassed toluene at room temperature. (b) Time-resolved PL spectra recorded in a closed cryostat at ...

Glow-in-the-dark stars feel like a staple of childhood. You may have stuck them to your bedroom ceiling in fifth grade and then discovered them, on a visit home decades later, still lighting up ...

The nostalgic "glow-in-the-dark" stars that twinkle on the ceilings of childhood bedrooms operate on a phenomenon called phosphorescence. Here, a material absorbs energy and later releases it in the ...

The R&D carried out by LG Display on its Blue PHOLED screens (also known as Hybrid Tandem OLED) is proving attractive on a couple of levels. LG says it can now commercialise their production, and for ...

Forward-looking: LG Display has become the first company to verify the commercialization of blue phosphorescent OLED panels. With the panels ready for mass production, LG says it has taken a ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

Room-temperature phosphorescence (RTP) is a fascinating optical phenomenon, and a variety of methods have been developed to achieve and improve the desirable phosphorescent performance on demand.

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

A photosensitizer (PS) is a chemical species that initiates a reaction upon absorption of light. Although the chemical compositions and practical applications of PS' differ widely, they all follow the ...