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Nanotechnology
Finely controlled luminescent Ag-In-Ga-S quantum dots with dual green and red emission towards white LEDs
Schematic diagram of the correspondence between size-dependent bandgap and spectrum based on the size effect of quantum dots. Credit: Opto-Electronic Advances (2024). DOI: 10.29026/oea.2024.240050 Semiconductor quantum dot (QD) materials have shown great potential for applications in lighting and display fields due to their wide color gamut, tunable emission wavelength, high quantum efficiency, high chroma, and low processing cost. For example,…
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Other Sciences
Why is the representation of dwarfism changes in Disney’s live-action remake of ‘Snow White’ so important?
Credit: Unsplash/CC0 Public Domain Disney’s live-action remake of Snow White and the Seven Dwarfs, currently scheduled for March 2025, has been controversial, with the movie’s trailer receiving over 1 million thumbs down on YouTube. There is. In particular, many fans were outraged by the fact that computer-generated imagery (CGI) was used for the characters in The Seven Dwarfs (now renamed…
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Physics
Multifunctional phosphor developed for white LED lighting and optical temperature measurement
A showcase of tunable color emission and applications. Credit: Frontiers of Optoelectronics (2024). DOI: 10.1007/s12200-024-00134-2 In the fields of lighting and temperature measurement, advances in material science are paving the way for significant improvements in technology and safety. Traditional methods of combining yellow phosphors and blue chips in LEDs have limitations, such as insufficient red light content to affect color…
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