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Lượt truy cập
 Lượt truy cập :  14,894,109

81.09

Kỹ thuật vật liệu và luyện kim

Đinh Xuân Lộc; Phạm Song Toàn; Trần Thị Kim Chi; Nguyễn Quang Liêm; Nguyễn Quang Liêm(1)

Tổng hợp vật liệu phát quang nano ZnSe:Mn bằng phương pháp đồng kết tủa

Synthesis ZnSe:Mn nano luminescent materials by co-precipitates method

TC Hóa học

2011

6

690-692

0866-7144

Tổng hợp vật liệu; Vật liệu phát quang Nano ZnSe:Mn; Phương pháp đồng kết tủa

Mn2+ - doped zinc selenide (ZnSe:Mn) nanomaterials have been attracted much attention in recent years for fundamental properties and technological applications. In this work, ZnSe:Mn luminescent nanomaterials were successfully synthesized by co-precipitate method in gather colloidal environment mecapto acetic acid at room temperature. The morphology and the structure of the prepared sa~ples were characterized by field emission scanning electron microscopy (FESEM) and X-ray difftaction (XRD). FESEM images and XRD diagrams showed that the materials are in size of 20-50 nm with single phase structure of ZnSe. Photoluminescence of materials was measured at room temperature by an IHR 550 spectrometer using an excitation laser with 266 nm wavelength. It shows that ZnSe:Mn nanoparticles materials have strong emission in orange region (with a maximum at 645 nm) which correspond to the 4T16A, transition of Mn2+.

TTKHCNQG, CVv14