Chi tiết| Tên | Synthesis and optical properties of CdS:Mn2+ and CdS:Mn2+/ZnS core/shell quantum quantum dost |
| Lĩnh vực | Vật Lý |
| Tác giả | Vũ Thị Kim Liên, Chu Việt Hà, Triệu Thị Thu Thuỷ, Vũ Thị Hồng Hạnh, Phạm Thái Cường, Lê Tiến Hà, Nguyễn Xuân Ca, Phạm Thu Nga |
| Nhà xuất bản / Tạp chí | ASEAN Journal on Science & technology for Development Tập 1 Số 24 Năm 2007 |
| Số hiệu ISSN/ISBN | |
| Tóm tắt nội dung | |
In this work, we report on the novel results of photoluminescent properties of Mn - doped CdS and CdS/ZnS semiconductor nanocrystals. There is noticeable increase of the PL emission intensity and subsequent photostability in Mn-doped CdS/ZnS core-shell nanocrystal samples compared with CdS:Mn nanocrystal samples without the ZnS shell. This shows effective passivation of CdS suface states by the ZnS shell. The photoluminescent emission corresponding to internal Mn2+ transition (4T1 - 6A1) at about 585 nm in the CdS:Mn/ZnS nanocrystals with high concentrations of Mn are observed quite clearly beside the intrinsic emission of CdS nanocrystals. The results may lead to application in electroluminescent displays and biomarkers. |
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