Timtailieu.net 
Phân tích tư tưởng của nhân dân qua đoạn thơ: Những người vợ nhớ chồng… Những cuộc đời đã hóa sông núi ta trong Đất nước của Nguyễn Khoa Điềm
3405
1
0
9 trang
A new host phosphors of LaSr2AlO5 doped with Ce and Eu was synthesized using a solid-state reaction method and the synthesis conditions were investigated. The samples were characterized by X-ray diffraction, scanning electron microscopy, photoluminescent (PL) and photoluminescent excitation (PLE) spectra. LaSr2AlO5:Ce shows a yellow emission at about 570 nm after an excitation at about 450 nm while LaSr2AlO5:Eu presents a red emission.
Nội dung trích xuất từ tài liệu:
Preparation and optical properties of LaSr2AlO5 doped with Ce and Eu
