Passivation and Interlayer Effect of Zr(i-PrO)₄ on Green CuGaS₂/ZnS/Zr(i-PrO)₄@Al₂O₃ and Red CuInS₂/ZnS/Zr(i-PrO)₄@Al₂O₃ QD Hybrid Powders.

ABSTRACT: Broadband emissive I-III-VI quantum dots (QDs) are synthesized as efficient and stable I-III-VI QDs to be used as eco-friendly luminescent materials in various applications. Here, we introduce the additional passivation of zirconium isopropoxide (Zr(i-PrO)₄) to improve the optical properties and environmental stability of green-emitting CuGaS₂/ZnS (G-CGS/ZnS) and red-emitting CuInS₂/ZnS (R-CIS/ZnS) QDs. The photoluminescence quantum yield (PLQY) of both resultant Zr(i-PrO)₄-coated G-CGS/ZnS and R-CIS/ZnS QDs reaches similar values of ~ 95%. In addition, the photostability and thermal-stability of G-CGS/ZnS/Zr(i-PrO)₄ and R-CIS/ZnS/Zr(i-PrO)₄ QDs are improved by reducing the ligand loss via encapsulation of the ligand-coated

SUBMITTER: Ko M 

PROVIDER: S-EPMC9640527 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature