Abstract
AbstractRecently, I‐III‐VI type quantum dots (QDs) have attracted considerable attention in display technology due to their large‐scale tunable emission and environmentally friendly characteristics. However, within this family, narrow‐bandwidth Cu‐based QDs have rarely been reported. Herein, the synthesis of narrow‐bandwidth blue‐emitting Cu‐Ga‐S (CGS)‐based QDs is reported by a hot‐injection method for the first time, boasting a narrow full width at half‐maximum (FWHM) of 29 nm, closely approaching that of traditional Cd‐based QDs. Through precisely controlling the temperature of nucleation stage, CGS‐based QDs showcase a representative blue emission at 475 nm, featuring the narrowest FWHM and a photoluminescence quantum yield (PLQY) of 32%. Besides, the femtosecond transient fluorescence (fs‐TA) characterization indicates that the narrow‐bandwidth luminescence is attributed to band‐to‐hole recombination rather than donor‐acceptor pair (DAP) recombination. The work opens a new avenue for narrow‐bandwidth I‐III‐VI QDs, offering increased potential for applications in blue‐light‐emitting devices.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
