- Fabrication of metal-semiconductor or metal-dielectric hybrid structure luminescent nanoparticles by laser abrasion method.
- Using plasma to fabricate metal-semiconductor or metal-dielectric hybrid structure luminescent nanoparticles and compare the quality of nanoparticles fabricated by plasma method with laser method.
- Training of high qualified researchers and enhance international cooperation and of Institute of Physics, VAST.

- In this project, a high-performance sunlight photocatalyst of the type Au/TiO2 nanocomposite has been successfully synthesized by the incorporation of gold nanoparticles (AuNPs) onto the TiO2 surface using the plasma–liquid interaction method. This method is proven to be efficient and environmentally clean in terms of minimizing processing time and the usage of treating agents. There are two types of AuNPs confined in the treated Au/TiO2 samples: the small size AuNPs, with the size of about 2 nm, may grow directly on the TiO2 surface, while the larger size AuNPs with the particle size distributed around about 40 nm grow in the solution before being attached onto the TiO2 surface.  The plasma enhanced surface activation has brought a potentially strong improvement of the grafting of AuNPs onto the TiO2 surface. The contact between the AuNPs and TiO2 in the treated Au/TiO2 sample is tight which results in a very strong red shift of the plasmonic resonant peak. The sunlight degradation rate of MB with treated Au/TiO2 has increased 3.25 times in comparison to that of the non-treated Au/TiO and even by the factor of 13 in comparison to that of the bare rutile TiO2. With this structure, distinct plasmon effects and backscatter intensity distribution of the Stocks component within the nanorods array were observed when excited by different polarizations of the laser beam. These results are intended for chemotherapy and biosensor applications. In addition, we also use laser ablation method to fabricate ZnO nanoparticles, which through the annealing process at different temperatures, these ZnO nanoparticles tend to crystallize differently: amorphous; wurzite and sphalerite structure.
- During the two years of the project, we have had specific scientific exchanges between the two sides. The results of this research have contributed greatly to the training of young scientists in the field of quantum photonics and nano-photonics in Vietnam. It also promoted international publications, which is now a matter for the Vietnamese Academy of Science and Technology.

Moreover, we have successfully synthesized carbon quantum dots by electrochemical method making use of atmospheric pressure micro-plasma interacting with saccharose solution. As a result of this research published on the prestigious scientific journals such as Plasmonics and Communication in Physics.

Scientific papers in referred journals (list):
1. Nguyen Thi Thu Thuy, Do Hoang Tung, Le Hong Manh, Joon Heon Kim, Sergey Ivanovich Kudryashov, Pham Hong Minh and Nguyen The Hien, “Plasma Enhanced Wet Chemical Surface Activation of TiO2 for the Synthesis of High Performance Photocatalytic Au/TiO2 Nanocomposites”, Appl. Sci. 2020, 10, 3345.
2. N. Busleev, S. Kudryashov, I. Saraeva, P. Danilov, A. Rudenko, D. Zayarny, S. Maier, Pham Hong Minh and A. Ionin, Few Percent Efficient Polarization-Sensitive Conversion in Nonlinear Plasmonic Interactions Inside Oligomeric Gold Structures, Sensors, 2021, 21(1), 59.
3. N. I. Busleev, S. I. Kudryashov, I. N. Saraeva, P.A. Danilov, A.A. Rudenko, D. A. Zayarny, A. A. Ionin and Pham Hong Minh, Numerical simulations of the polarization-sensitive response in nanospikes array, Journal of Physics: Conference Series, 1692 (2020) 012008, doi:10.1088/1742-6596/1692/1/012008.
4. A. K. Ivanova, S. I. Kudryashov, P. H. Minh, A. A. Ionin, N. N. Mel’nik, A.A. Rudenko, High-temperature annealing effect on photoluminescence of ZnO nanoparticles produced by laser ablation in hydrogen peroxide, Journal of Physics: Conference Series, 1692 (2020) 012027, doi:10.1088/1742-6596/1692/1/012027.
5. Nguyen Thi Huyen Trang, Kudryashov Sergey Ivanovich, Pham Van Duong, Pham Hong Minh, “Micro-holes array as a chemosensor and biosensor”, Advances in Applied and Engineering Physics – CAEP VI, ISBN: 978-604-913-232-2, pp. 277-282.
Education: 01 PhD Student graduated.