The Role of Cu 2+ Concentration in Luminescence Quenching of Eu 3+ / Cu 2+ Co-doped ZrO2 Nanoparticles

• Main Authors: Pham, Van Huan, Phuong, Dinh Tam, Nguyen, Thi Ha Hanh, Cao, Xuan Thang, Pham, Vuong-Hung
• Format: Article
• Language: English
• Published: H. : ĐHQGHN 2019
• Subjects: Zirconia; Luminescence; Precipitation; Quenching; Nanoparticles
• Online Access: http://repository.vnu.edu.vn/handle/VNU_123/64489; https//doi.org/ 10.25073/2588-1124/vnumap.4320
• Institution: Vietnam National University, Hanoi

This paper the role of Cu 2+ concentrations in luminescence quenching of Eu 3+ / Cu 2+ doped ZrO2 nanoparticles synthesized by co-precipitation method. The synthesized Eu 3+ / Cu 2+ doped ZrO2 nanoparticles were observed to have sphere morphology with a diameter of  25 nm. The XRD patterns of the nanoparticles revealed the peaks that were to be crystalline tetragonal ZrO2. The addition of Cu 2+ to the Eu 3+ doped ZrO2 nanoparticles resulted in a significant suppress luminescence in Eu 3+ / Cu 2+ doped ZrO2 nanoparticles, which was attributed to the spectral overlap occurs between Cu 2+ absorption and Eu 3+ emission (5D0→ 7F2 transition).