• PhD in Physics Kyung Hee University, Seoul, South Korea.

Thesis title: Spectroscopic Ellipsometry Studies on Optical Properties of Two-Dimensional MoS2 and WS2 from Monolayers to Heterostructure

• B.S. in Materials Science University of Science and Technology of Hanoi, Hanoi, Vietnam.

Thesis title: Multi-branch problem in determination of refractive index

• Spectroscopic Ellipsometry study on optical properties of 2D materials and heterostructures

• Temperature dependence of dielectric function and critical points of monolayers MoS2 and WS2

• Exciton effect and dielectric screening effect of 2D materials

• Crystal quality and uniformity in large scale 2D materials

• Metamaterials perfect absorption

• Thermal plasma for nano particles fabrication

• 2014-2016: Doing researches on Metamaterials at the Institute of Materials Science, Vietnam Academy of Science and Technology

  • Doing researches on Determination of refractive index of Metamaterials by different methods

  • Design a Metamaterial structure for perfect absorption at THz frequencies

• 2016-2021: PhD student in Kyung Hee University (Seoul) on Spectroscopic Ellipsometry

  • Study the fundamentals of Spectroscopic Ellipsometry (SE)

  • Rebuild and optimize a homemade SE system

  • Analyze SE measurement data to extract optical properties of various materials including bulks, thin films, and 2D materials

  • Study the temperature dependence of the dielectric functions and exciton effects of monolayers

  • Transition Metal Dichalcogenides

• 2021-now: Researcher at the Institute of Materials Science, Vietnam Academy of Science and Technology

  • Spectroscopic Ellipsometry on 2D films and their heterostructures

  • Thermal plasma for nano particles fabrication (Carbon black, Wolfram oxide, ...)

  • Cold plasma for sanitization

  • Reconfigurable metameterials for tunable absorption

1. “Optical Properties of Anisotropic SnSxSe1−x for Arbitrary Compositions”

Xuan Au Nguyen, Tae Jung Kim, Van Long Le, Hoang Tung Nguyen and Young Dong Kim

Journal of the Korean Physical Society, Vol. 77, No. 12, December 2020, pp. 1178∼1182

2. “Modeling of the Temperature Dependence of the Dielectric Function of Biaxial α-SnS”

Hoang Tung Nguyen, Van Long Le, Tae Jung Kim, Xuan Au Nguyen, and Young Dong Kim

Journal of the Korean Physical Society, Vol. 77, No. 11, December 2020, pp. 987∼990

3. “Dielectric Function and Critical Points of SnS0.52Se0.48 in the Temperature Range from 27 to 350 K”

Tae Jung Kim, Xuan Au Nguyen, Bogyu Kim, Kyujin Kim, Wonjun Lee, Van Long Le, Hoang Tung Nguyen and Young Dong Kim

Journal of the Korean Physical Society, Vol. 77, No. 11, December 2020, pp. 981∼986

4. “Parameterization of the Dielectric Function of GaAsSb Alloy Films”

Van Long Le, Tae Jung Kim, Hoang Tung Nguyen, Xuan Au Nguyen, Bogyu Kim, and Young Dong Kim

Journal of the Korean Physical Society, Vol. 77, No. 10, November 2020, pp. 840~844

5. “Parameterization of Dielectric Functions and Phase Transitions of SrTiO3 from 26 to 674 K”

Tae Jung Kim, Van Long Le, Han Gyeol Park, Hoang Tung Nguyen, Xuan Au Nguyen, and Young Dong Kim

Journal of Nanoscience and Nanotechnology, Vol. 20 No. 11, November 2020, pp. 6692~6697

6. “Temperature dependence of the dielectric function and critical points of α‑SnS from 27 to 350 K”

Hoang Tung Nguyen, Van Long Le, Thi Minh Hai Nguyen, Tae Jung Kim, Xuan Au Nguyen, Bogyu Kim, Kyujin Kim, Wonjun Lee, Sunglae Cho, and Young Dong Kim

Scientific Reports, volume 10, 27 October 2020, 18396

7. “Anisotropic behavior of excitons in singlecrystal α-SnS”

Van Long Le, Do Duc Cuong , Hoang Tung Nguyen, Xuan Au Nguyen, Bogyu Kim, Kyujin Kim, Wonjun Lee, Soon Cheol Hong , Tae Jung Kim , and Young Dong Kim

AIP Advances vol. 10, 1 October 2020, 105003

8. “Modeling of the Optical Properties of Monolayer WS2”

Tae Jung Kim, Van Long Le, Hoang Tung Nguyen, Xuan Au Nguyen, and Young Dong Kim

Journal of the Korean Physical Society, Vol. 77, No. 4, August 2020, pp. 298~302

9. “Temperature dependence of optical properties of monolayer WS2 by spectroscopic ellipsometry”

Hoang Tung Nguyen, Tae Jung Kim, Han Gyeol Park, Van Long Le, Xuan Au Nguyen, Dohyoung Koo, Chul-ho Lee, Do Duc Cuong, Soon Cheol Hong, and Young Dong Kim

Applied Surface Science, Vol 511, 1 May 2020, pp. 145503

10.“Parameterized optical properties of InxAl1-xP alloys”

Hoang Tung Nguyen, Tae Jung Kim, Han Gyeol Park, Van Long Le, Xuan Au Nguyen, and Young Dong Kim

Applied Optics Vol. 59, No9, 20 March 2020, pp. 2924-2928

11. A Parametric Model for Temperature Dependence of Dielectric Function of AlSb Film”

Xuan Au Nguyen, Tae Jung Kim, Van Long Le, Han Gyeol Park, Hoang Tung Nguyen, and Young Dong Kim

Journal of Nanoscience and Nanotechnology, Vol. 19, No.10, 01 October 2019, pp. 6801~6807

12.“Dielectric Functions and Critical Points of GaAsSb Alloys”

Tae Jung Kim, Han Gyeol Park, Jun Seok Byun, Van Long Le, Hoang Tung Nguyen, Xuan Au Nguyen, Young Dong Kim, Jin Dong Song, and David E. Aspnes

Journal of the Korean Physical Society, Vol. 74, 01 March 2019, pp. 595~599

13. “Temperature dependence of the dielectric function of monolayer MoS2”

Van Long Le, Tae Jung Kim, Han Gyeol Park, Hoang Tung Nguyen, Xuan Au Nguyen, and Young Dong Kim

Current Applied Physics, Vol. 19, Issue 2, 01 February 2019, pp. 182~187

14. “Conductive polymer for ultra-broadband, wide-angle, and polarization-insensitive metamaterial perfect absorber”

Le Dinh Hai, Vu Dinh Qui, Hoang Tung Nguyen, Tran Van Huynh, Nguyen Dinh Dung, Nguyen Thanh Binh, Le Dac Tuyen, and Vu Dinh Lam

Optics Express, Vol. 26, 10 December 2018, pp. 33253

15. “Temperature Dependence of the Dielectric Response and Critical Point Energies of Bi1.85Gd0.15Te3”

Hoang Tung Nguyen, Tae Jung Kim, Han Gyeol Park, Van Long Le, Jinsu Kim, Myung-Hwa Jung, and Young Dong Kim

Journal of Nanoscience and Nanotechnology, Vol. 18, 01 September 2018, pp. 235701(6pp)

16. “Temperature Dependence of the Dielectric Function of Monolayer MoSe2”

Han Gyeol Park, Tae Jung Kim, Farman Ullah, Van Long Le, Hoang Tung Nguyen, Yong Soo Kim, and Young Dong Kim

Scientific Reports, Vol. 8, 16 February 2018, pp. 3173