Green synthesis of highly UV-orange emitting ZnSe/ZnS:Mn/ZnS core/shell/shell nanocrystals by a three-step single flask method

Hydrothermal synthesis of water-soluble Mn- and Cu-doped CdSe quantum dots with multi-shell structures and their photoluminescence properties

“…In 1994, Bhargava et al first reported the synthesis of colloidal ZnS:Mn QDs. 50 Subsequently, Mn ions were doped into II–VI semiconductors including ZnSe, 51–53 CdSe, 42,45,46,54 CdS, 55,56 and ZnTe 57,58 QDs and perovskite QDs such as CsPbCl 3 . 59–61 Their optical and magneto-optical properties have also been studied.…”

Water-soluble ZnSe/ZnS:Mn/ZnS quantum dots convert UV to visible light for improved Si solar cell efficiency

“…32,48,49 Thus, new strategies are needed to synthesise Mn-doped ZnSe QDs with strong Mn PL. [50][51][52] Wood et al reported the synthesis of oil-soluble ZnSe/ZnS:Mn/ZnS QDs with a PLQY of 65% by forming ZnS:Mn innershell and ZnS outer-shell layers on the surface of ZnSe-core QDs using a hot-injection method. 50 Luong et al also reported the preparation of water-soluble ZnSe/ZnS:Mn/ZnS core/shell/shell QDs by a reflux method, but their PLQY remained low at 42.9 %.…”

“…50 Luong et al also reported the preparation of water-soluble ZnSe/ZnS:Mn/ZnS core/shell/shell QDs by a reflux method, but their PLQY remained low at 42.9 %. 52 In this study, we focused on the Mn 2+ doping of the shell layer instead of directly doping the core QDs of the ZnSe host (Figure 1a). To apply water-soluble ZnSe/ZnS:Mn/ZnS core/shell/shell QDs as wavelength-conversion materials and improve the conversion efficiency of Si solar cells, the PLQY must be maximised.…”

Highly luminescent glutathione-capped ZnS : Mn/ZnS core/shell doped quantum dots for targeted mannosyl groups expression on the cell surface

“…[16][17][18] Owing to the potential high photoluminescence (PL) quantum yield (QY) from the Mn 2+ 4 T 1 to 6 A 1 transition, a sustained effort to enhance the dopant emission intensity from doped NCs such as ZnS, ZnSe, and CdS hosts has lasted for more than a decade. [19][20][21][22][23][24][25][26][27][28] Particularly, ZnS : Mn d-dots, which are free of Cd and Se, are greener materials and have become popular nanophosphors for electroluminescent devices. Additionally, the luminescent lifetime of ZnS : Mn d-dots NCs reaches ca.…”