Near-Infrared and Visible Dual-Band Self-Trapped Exciton Emissions from Li⁺-Doped Cs₂NaScCl₆ Double Perovskites

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 2150 - 2159

Published: April 4, 2025

Language: Английский

Locking in Color: Stable RGB Perovskite Nanocrystal Films via UV Cross‐Linking

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract Perovskite nanocrystals have positioned themselves at the forefront of next‐generation emitter applications due to their extraordinary optoelectronic properties, which include widely tunable narrow emission spectra and low‐cost syntheses. However, stability issues halide ion exchange inhibit realization heterostructures, severely limiting applicability decelerating commercialization. Here, a block copolymer templated perovskite nanocrystal synthesis with post‐synthetic treatment is combined UV‐C light obtain ultra‐stable thin film emitters. The UV induces cross‐linking between polymer strands, thereby rendering them insoluble organic solvent nearly impervious diffusion while retaining nanocrystals’ optical properties. This method enabled fabrication an all‐perovskite white light‐emitting film. resulting films feature linewidths ( < 95 meV) for each RGB peak. Additionally, color temperature ’white’ can be tuned gamut approximating Rec. 2020 standard. These RGB‐emissive phosphor commercial or blue LED backlights create high‐efficiency, high‐quality phosphor‐converted LEDs displays.

Language: Английский

Enhancing color conversion of perovskite quantum dot-based micro-light-emitting diodes via electrochemical etching and flow chemistry system

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162428 - 162428

Published: April 1, 2025

Language: Английский