Optical wireless communication using a flexible and waterproof perovskite color converter.
Opt Lett
; 49(9): 2229-2232, 2024 May 01.
Article
em En
| MEDLINE
| ID: mdl-38691686
ABSTRACT
In this Letter, the CH3NH3PbBr3 nanocrystals (NCs) are embedded into the interstices of the fluorine (polyvinyl fluoride/polyvinylidene fluoride, PVF/PVDF) matrix on polyethylene terephthalate (PET) substrate to introduce new advantages, such as being flexible and waterproof, while maintaining the high optical performance of perovskites. The sample's photoluminescence (PL) spectra under 325â
nm laser is a green emission peaked at 537â
nm with full width at half maximum (FWHM) of about 21.2â
nm and a fast PL decay time. As a color converter, it shows high optical absorption and can transform light from solar-blind ultraviolet to a blue region into a green region in air, water, and bending conditions. While excited by a 270â
nm ultraviolet light-emitting diode (LED), the system's observed -3â
dB bandwidth with the color converter is near 4.4â
MHz in air and water conditions with well-eye diagrams at a data rate of 30â
Mbps. Finally, we demonstrate an audio transmission application with an ultraviolet light source, a color conversion layer, and a low-cost silicon-based photodetector.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2024
Tipo de documento:
Article