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1. Full name: Dang Van Thai 2. Sex: Male
3. Date of birth: 15 – 01 -1984 4. Place of birth: Ha Noi
5. Admission decision number: No.4374/QĐ-KHTN-CTSV on 03/12/2012 by the Rector of VNU University of Science.
6. Changes in academic process: None
7. Official thesis title: Synthesis, study on effect of polymer capping and optical annealing on the optical properties of Mn, Cu-doped ZnS nanoparticles.
8. Major: Optics 9. Code: 62 44 01 09
10. Supervisors: 1. PGS.TS. Tran Minh Thi
2. PGS.TS. Pham Van Ben
11. Summary of the new findings of the thesis
- Systematic study on effect of the polymer capping and polymer mass on structure, morphology and optical properties of ZnS:M nanoparticles.
- The transitions of [HOMO So(n) ↔ LUMO T1(π*)] in C=O groups transferred excitation energy from polymers to M2+ ions leading to increase the PL band intensity in PL and PLE spectra.
- The process of polymerization turned α-hydroxyl acetic acid into -[OCH2CO]n- polymer leading to increase the yellow-orange band PL intensity of ZnS:Mn.TN-TGA nanoparticles.
- The optical annealing power of laser radiations also affected on the PL spectra of ZnS:M nanoparticles.
12. Practical applicability, if any:
Synthesis of ZnS:M/polymer (M: Mn, Cu and polymer: PVP, PVA) nanoparticles has stably structure and properties.
13. Further research directions, if any
The research of photocatalyst ability of synthesized ZnS:M and ZnS:M/polymer nanoparticles by co-precipitation method.
14. Thesis-related publications:
- Thi Tran Minh, Ben Pham Van, Thai Dang Van & Hien Nguyen Thi (2012), “The optical properties and energy transition process in nanocomposite of polyvinyl-pyrrolidone polymer and Mn-doped ZnS”, Optical and Quantum Electronics, 45(2), pp. 0306 – 8919.
- Tran Minh Thi, Nguyen Thi Van Anh, Dang Van Thai, Bui Hong Van, Pham Van Ben, Vu Quoc Trung, Nguyen Minh Thuy (2012), “The microtructure and some optical properties of some polymer-ZnS:Cu nanocrystal composites”, Journal of Science and Technology, 50 (1B), pp. 375-382.
- Dang Van Thai, Vu Thi Thanh Loan, Tran Minh Thi, Pham Van Ben (2012), “The optical properties of ZnS:Cu/PVP synthesized by chemical method”, Advances in optics photonics spectroscopy & Applications VII, ISSN 1859 -4271, pp. 649-654.
- Dang Van Thai, Nguyen Thi Hai Yen, Tran Minh Thi, Pham Van Ben, Nguyen Trong Uyen (2013), “The luminescence spectra of polyvinyl alcohol-capped ZnS:Cu nanoparticles synthesized by co-precipitation”, Journal of chemistry, 51(6ABC), pp. 744 - 747.
- D. V. Thai, T. M Thi, P. V. Ben, D. V. Lap, N. T. Uyen, H. H. Thu (2014), “The effect of ultraviolet irradiation on the optical properties of ZnS:Mn synthesized by hydrothermal method and using thioglycolic acid”, IEEE, COMMAD, 978-1-4799-6868-8/14.
- Dang Van Thai, Pham Van Ben, Tran Minh Thi, Nguyen Van Truong & Hoa Huu Thu (2016), “The photoluminescence enhancement of Mn2+ ions and the crystal field in ZnS:Mn nanoparticles covered by polyvinyl alcohol”, Optical and Quantum Electronics, ISSN, 0306-8919, 48(7), pp. 1-15.
- Dang Van Thai, Pham Van Thang, Pham Van Ben, Bui Hong Van, Tran Minh Thi, Hoang Nam Nhat (2015), “Influence of polyvinyl pyrrolidone on absorption and radiation transitions of Mn2+ ions in Mn-doped ZnS nanoparticles”, Communications in Physics, 25(4), pp. 349-357.
- Dang Van Thai, Pham Van Ben, Bui Hong Van, Pham Thanh Huong, Nguyen Trong Uyen, Tran Minh Thi, Le Hai Dang (2016), “Influence of the particle size on some optical properties of Mn-doped ZnS nanoparticles, Journal of Chemistry, 54(5e1,2), pp. 262-273.
- Dang Van Thai, Pham Van Ben, Bui Hong Van, Tran Minh Thi, Do Kim Phuong, Nguyen Trọng Uyen (2017), “Influence of polyvinyl pyrrolidone on some optical properties of ZnS:Cu nanoparticles”, Journal of Chemistry, 55(3e12), pp. 235-239.
- Dang Van Thai, Pham Van Ben, Bui Hong Van, Nguyen Duc Long, and Tran Minh Thi (2017), “The photoluminescence enhancement of Mn2+ ions in ZnS:Mn nanoparticles irradiated by laser radiation”, Advances in optics photonics spectroscopy and Applications IX, ISSN, pp. 1859 - 4271.
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