Synthesis of pure-red-emission perovskite quantum dots with high color purity by A-site cation exchange with lecithin at room temperature

Key Points

• This research aims to synthesize pure-red-emission perovskite quantum dots with high color purity at room temperature.
• Utilized A-site cation exchange with lecithin
• Conducted synthesis at room temperature
• Measured full-width at half-maximum (FWHM) of the emissions
• Achieved a FWHM below 30 nm in pure-red PeQDs
• Demonstrated high color purity
• Showed promise for ultra-high-definition television applications