Nguyen Thi Ngoc Anh
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Nguyen Thi Ngoc Anh has a total of 7 co-authors. Here are the top co-authors by number of shared publications:
Dinh Manh Tien
Institute of Materials Sciences, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Hanoi 100000, Vietnam
1 shared publicationDo Khanh Tung
Institute of Materials Sciences, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Hanoi 100000, Vietnam
1 shared publicationHoang Thi Khuyen
Institute of Materials Sciences, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Hanoi 100000, Vietnam
1 shared publicationNguyen Thanh Binh
Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Giang Vo, Hanoi 11108, Vietnam
1 shared publication- Nguyen Thanh Huong
Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Ha Noi, Viet Nam
1 shared publication Nguyen Vu
Institute of Materials Sciences, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Nghia Do, Hanoi 100000, Vietnam
1 shared publication
Latest Publications
- Open Access
- 5 March 2026
- Published by Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) in Communications in Physics
- Vol. 36 (1) , 57
Facile shape control of GdPO\(_4\).H\(_2\)O:Tb\(^{3+}\) by solvothermal method using di/polyethylene glycol as soft templateTb3+-doped GdPO4·H2O phosphors were synthesized with wire-, rod-, and particle-like morphologies using a solvothermal method. This was achieved by varying the reaction solvent between diethylene glycol (DEG) and polyethylene glycol (PEG) of different molecular weights. The crystal structure, morphology, and photoluminescence (PL) properties were characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and PL spectroscopy. The emission spectra showed the characteristic green luminescence of Tb³⁺ ions, with transition from the 5D4 → 7Fj (J = 6, 5, 4, 3) at 489, 543, 586, and 620 nm, respectively. Systematic analysis revealed a strong correlation between material morphology, crystal structure, and luminescence efficiency. The sample with a nanoparticle morphology, synthesized at 100 °C in a PEG 8000 medium, exhibited the highest PL intensity. It displayed a dominant green emission at 543 nm (5D4 → 7F5) and sharp, well-defined emission bands. These findings confirm that a solvent-mediated morphology control strategy is effective for optimizing the luminescence performance of GdPO4-based phosphors.
- 5 March 2026
- Published by Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) in Communications in Physics
- Vol. 36 (1) , 57
Open AccessFacile shape control of GdPO\(_4\).H\(_2\)O:Tb\(^{3+}\) by solvothermal method using di/polyethylene glycol as soft templateTb3+-doped GdPO4·H2O phosphors were synthesized with wire-, rod-, and particle-like morphologies using a solvothermal method. This was achieved by varying the reaction solvent between diethylene glycol (DEG) and polyethylene glycol (PEG) of different molecular weights. The crystal structure, morphology, and photoluminescence (PL) properties were characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and PL spectroscopy. The emission spectra showed the characteristic green luminescence of Tb³⁺ ions, with transition from the 5D4 → 7Fj (J = 6, 5, 4, 3) at 489, 543, 586, and 620 nm, respectively. Systematic analysis revealed a strong correlation between material morphology, crystal structure, and luminescence efficiency. The sample with a nanoparticle morphology, synthesized at 100 °C in a PEG 8000 medium, exhibited the highest PL intensity. It displayed a dominant green emission at 543 nm (5D4 → 7F5) and sharp, well-defined emission bands. These findings confirm that a solvent-mediated morphology control strategy is effective for optimizing the luminescence performance of GdPO4-based phosphors.