Effect of annealing temperature and doping concentrations on structure and optical properties of Eu3+-doped TiO2 nanomaterials

• Tác giả: Do Quang Trung, Trung Tran Manh, Tri Tuan Nguyen, Trong Tuan Nguyen, Tu Nguyen, Van Du Nguyen, Van Quang Nguyen, Thi Hao Tam Tong, Minh Tien Tran, Thi Hang Vu
• Ngôn ngữ: eng
• Thông tin xuất bản: Vietnam Journal of Science, Technology and Engineering - C, 2024
• Mô tả vật lý: tr.10
• Bộ sưu tập: Metadata
• ID: 380231

Tóm tắt

In this study, we successfully synthesized europium-doped TiO2(TiO2:Eu3+) nanomaterials (NMs) with crystalline sizes ranging from 6.5 to 71.7 nm through a sol-gel method. Analysis of X-ray diffraction (XRD) patterns and ultraviolet-visible (UV-Vis) spectra indicates that the substitution of smaller-sized Ti4+ ions (0.745 Å) by larger-sized Eu3+ ions (0.947 Å) was more efficient at higher doping concentrations and annealing temperatures...