Bài viết Nano tinh thể bán dẫn ba thành phần CdSSe pha tạp Mn: Cấu trúc, tính chất quang và truyền năng lượng trình bày kết quả chế tạo các nano tinh thể (NC) bán dẫn CdSSe pha tạp ion Mn2+ với nồng độ thay đổi (0-5%) bằng phương pháp hóa ướt. | TNU Journal of Science and Technology 227 16 76 - 84 Mn-DOPED CdSSe TERNARY SEMICONDUCTOR NANOCRYSTALS STRUCTURE OPTICAL PROPERTIES AND ENERGY TRANSFER Nguyen Xuan Ca1 Nguyen Thi Khanh Van1 Nguyen Thi Hien1 Pham Thanh Hieu2 Nguyen Thi Thu Hoan3 Nguyen Van Truong3 Pham Minh Tan3 1 TNU - University of Sciences 2 TNU - University of Agriculture and Forestry 3TNU - University of Technology ARTICLE INFO ABSTRACT Received 09 9 2022 This paper presents the results of fabrication of CdSSe semiconductor nanocrystals NCs doped with Mn2 ions with varying concentrations 0- Revised 07 10 2022 5 by wet chemical method. The optical properties and structural of the Published 10 10 2022 CdSSe NCs were investigated by changing the S Se ratio. The fabricated CdSSe NCs have a cubic structure. The presence of elements and their KEYWORDS compositions in the samples were determined through energy dispersive spectroscopy EDX . The luminescence properties of the Mn-doped CdSSe CdSSe NCs were investigated through photoluminescence spectroscopy Mn PL . Emission spectra of the Mn-doped CdSSe NCs located in the visible light region with two characteristic emission peaks at wavelengths Dopping of 426-436 nm and 584-587 nm respectively. Two emission peaks Optical properties correspond to the emission of the CdSSe host and the emission of Mn2 Energy transfer ions corresponding to the energy transition 4T1-6A1 . The energy transfer process from the host to the impurity and the efficiency of this process have been studied and determined. The Mn-doped CdSSe NCs have a much longer lifetime than the undoped CdSSe NCs giving them great potential for applications in solar cells and biomarkers. NANO TINH THỂ BÁN DẪN BA THÀNH PHẦN CdSSe PHA TẠP Mn CẤU TRÚC TÍNH CHẤT QUANG VÀ TRUYỀN NĂNG LƯỢNG Nguyễn Xuân Ca1 Nguyễn Thị Khánh Vân1 Nguyễn Thị Hiền1 Phạm Thanh Hiếu2 Nguyễn Thị Thu Hoàn3 Nguyễn Văn Trường3 Phạm Minh Tân3 1 Trường Đại học Khoa học - ĐH Thái Nguyên 2Trường Đại học Nông Lâm - ĐH Thái Nguyên 3 .
