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Research

1. Organic light emitting diodes (OLEDs) and Solar cells

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  1. Pham, M. T., Amerling, E., Luong, H. M., Pham, H. T., Larsen, G. K., Whittaker-Brooks, L., & Nguyen, T. D. (2020). "Origin of Rashba Spin-Orbit Coupling in 2D and 3D Lead Iodide Perovskites". Scientific Reports10(1), 1-10.
  2. Geng, R.; Luong, H. M.; Pham, M. T.; Das, R.; Stojak Repa, K.; Robles-Garcia, J.; Duong, T. A.; Pham, H. T.; Au, T. H.; Lai, N. D. N.; Larsen, G.; Phan, M.-H.; Nguyen, T., Magnetically Tunable Organic Semiconductors with Superparamagnetic Nanoparticles. Materials Horizons (2019)
  3. R Geng, MT Pham, HM Luong, A Short, TD Nguyen “Correlation between the width and the magnitude of magnetoconductance response in π-conjugated polymer-based diodes”, Journal of Photonics for Energy 8 (3), 032222 (2018)
  4. R. Geng, R. C. Subedi, H. M. Luong, M. T. Pham, W. Huang, X. Li, K. Hong, M. Shao, K. Xiao, L. A. Hornak, T. D. Nguyen, "Effect of charge localization on the effective hyperfine interaction in organic semiconducting polymers", Phys. Rev. Lett. 120, 086602 (2018)
  5. R. Geng, T. T. Daugherty, K. Do, H. M. Luong, and T. D. Nguyen, "A review on organic spintronic materials and devices: I. Magnetic field effect on organic light emitting diode", J. Sci.: Adv. Mater. Dev. 1, 128-140 (2016)
  6. R. Geng, R. C. Subedi, S. Liang, & T. D. Nguyen, “Discernment of possible organic magnetic field effect mechanisms using polymer light-emitting electrochemical cells”, Spin 04, 1440010 (2014)
  7. R. Geng, N. T. Mayhew & T. D. Nguyen, “Tunable magneto-conductance and magneto-electroluminescence in polymer light-emitting electrochemical planar devices”, Appl. Phys. Lett. 103, 243307 (2013)
  8. T. D. Nguyen, E. Ehrenfreund and Z. V. Vardeny, “Organic magneto-resistance at small magnetic fields; compass effect”, Org. Electron.14(7):1852–1855 (2013)
  9. T. D. Nguyen, B.R.Gautam, E. Ehrenfreund and Z. V. Vardeny, “Magnetoconductance response in unipolar and bipolar organic diodes at ultrasmall fields”, Phys. Rev. Lett. 105, 166804 (2010)
  10. T. D. Nguyen, G. Hukic-Markosian, F. Wang, L. Wojcik, Xiao-Guang Li, E. Ehrenfreund, Z. V. Vardeny, “Isotope effect in spin response of π-conjugated polymer films and devices”, Nat. Mater. 9, 345-352 (2010)
    Related article: "Organic semiconductors: What makes spin relax ?", Nat. Mater. 9, 288 (2010)
  11. T. D. Nguyen, J. Rybicki, Y. Sheng, M. Wohlgenannt, “Device-spectroscopy of magnetic field effects in a polyfluorene organic light-emitting diode”, Phys. Rev. B  77, 035210 (2008)
  12. A. Bobbert, T. D. Nguyen, M. Wohlgenannt, “Bipolaron mechanism for organic magnetoresistance”, Phys. Rev. Lett. 99, 216801 (2007)

2. Spin OLEDs

  1. T. D. Nguyen, E. Ehrenfreund and Z. V. Vardeny, “The Spin-polarized organic light emitting diode” Synth. Metals 173,16-21(2013)
  2. T. D. Nguyen, E. Ehrenfreund and Z. V. Vardeny, “ Spin-polarized organic light emitting diode based on a novel bipolar spin-valve”, Science 337, 204 (2012)

3. Spin Seebeck effect

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  1. Kalappattil, Vijay, Rugang Geng, Raja Das, Minh Thien Pham, Hoang Mai Luong, Tho Nguyen, Adrian Popescu et al. "Giant Spin Seebeck Effect through an Interface Organic Semiconductor." Materials Horizons (2020).
  2. R. Das, V. Kalappattil, R. Geng, H. Luong, M. Pham, T. Nguyen, Tao Liu, Mingzhong Wu, M. H. Phan, H. Srikanth,"Enhanced room-temperature spin Seebeck effect in a YIG/C60/Pt layered heterostructure", AIP Advances 8, 055906 (2018)

4. Organic spin valves

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  1. V. Kalappattil, R. Geng, S. H. Liang, D. Mukherjee, J. Devkota, A. Roy, M. H. Luong, N. D. Lai, L. A. Hornak, T. D. Nguyen, W. B. Zhao, X. G. Li, N. H. Duc, R. Das, S. Chandra, H. Srikanth, M. H. Phan, "Role of the magnetic anisotropy in organic spin values", J. Sci.: Adv. Mater. Dev. 2, 378-384 (2017)
  2. R. Geng, H M. Luong, T.T. Daugherty, L.A. Hornak and T.D. Nguyen, "A review on organic spintronic materials and devices: II. Magnetoresistance in organic spin valves and spin organic light emitting diodes", J. Sci.: Adv. Mater. Dev. 1, 256-272 (2016)
  3. R. Geng, A. Roy, W. Zhao, R. C. Subedi, X. Li, J. Locklin, and T. D. Nguyen, “Engineering of spin injection and spin transport in organic spin valves using π-conjugated polymer brushes”, Adv. Funct. Mater. 26, 3999-4006 (2016)
  4. J. Devkota, R. Geng, R. C. Subedi, and T. D. Nguyen, "Organic spin valves: a review", Adv. Funct. Mater. 26, 3881-3898 (2016)
  5. S. Liang, R. Geng, B. Yang, S. Yang, R. C. Subedi, X. Li, X. Han, and T. D. Nguyen, "Curvature-enhanced spin orbit coupling and spinterface effect in fullerene-based spin valves", Sci. Rep. 6: 19461 (2016)
  6. S. Liang, R. Geng, Q. Zhang, L. You, R. C. Subedi, J. Wang, X. Han, T. D. Nguyen, "Large magnetoresistance at high bias voltage in double-layer organic spin valves", Org. Electron. 26, 314-318 (2015)
  7. T. D. Nguyen, E. Ehrenfreund and Z. V. Vardeny, “The development of organic spin valves from unipolar to bipolar operation”,  MRS Bulletin 39, 585 (2014)
  8. T. D. Nguyen, F. Wang, X.G. Li, E Ehrendfreund and Z. V. Vardeny, “Spin deffusion in fullerene-based devices: Morphology effect”, Phys. Rev. B 87, 075205 (2013)

5. Organic Ferroelectrics

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  1. Gao, Huipu, Darya Asheghali, Nataraja Sekhar Yadavalli, Minh Thien Pham, Tho Duc Nguyen, Sergiy Minko, and Suraj Sharma. "Fabrication of core-sheath nanoyarn via touchspinning and its application in wearable piezoelectric nanogenerator." The Journal of The Textile Institute (2019): 1-10.
  2. H Gao, PT Minh, H Wang, S Minko, J Locklin, T Nguyen, S Sharma “High-performance flexible yarn for wearable piezoelectric nanogenerators”, Smart Materials and Structures 27 (9), 095018 (2018) 
  3. R. C. Subedi, et al. "Large magnetoelectric effect in organic ferroelectric copolymer-based multiferroic tunnel junctions", Appl. Phys. Lett. 110, 053302 (2017) 

6. Organic Spectroscopy

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  1. B. Gautam, T. D. Nguyen, E Ehrenfreund and Z. V. Vardeny,”Magnetic field effect spectroscopy of C60-based films and devices”, J. Appl. Phys. 113, 143102 (2013)
  2. B. Khachatryan, T. D. Nguyen, Z. V. Vardeny and E. Ehrenfreund, “Phosphorescence super-radiance in a Pt-Containing p-Conjugated Polymer”, Phys. Rev. B 86, 195203 (2012)

7. Plasmonics and Magneto-Plasmonics

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  1. Luong, H. M., Pham, M. T., Madhogaria, R. P., Phan, M. H., Larsen, G. K., & Nguyen, T. D. "Bilayer Plasmonic Nano-lattices for Tunable Hydrogen Sensing Platform". Nano Energy, 104558 (2020).
  2. Hoang Mai Luong, Pham Thien Minh, Tho Duc Nguyen, and Yiping Zhao "Enhanced Resonant Faraday Rotation in Multilayer Magneto-Plasmonic Nano-Hole Arrays and Their Sensing Application", The Journal of Physical Chemistry C 123(46), 28377-28384 (2019)
  3. Luong, Hoang Mai, Minh Thien Pham, George Keefe Larsen, and Tho Duc Nguyen. "Plasmonic sensing of hydrogen in Pd nano-hole arrays." In Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVII, vol. 11082, p. 110821D. International Society for Optics and Photonics, (2019).
  4. Hoang Mai Luong, Pham Thien Minh, Tho Duc Nguyen, and Yiping Zhao "Magnetoplasmonic properties of Ag-Co composite nanohole arrays", Nanotechnology 30(42), 425203 (2019)
  5. Hoang Mai Luong, Pham Thien Minh, Bin Ai, Tho Duc Nguyen, and Yiping Zhao "Magnetoplasmonic properties of Ag-Co composite nanohole arrays", Physical Review B (99) 224413 (2019)
  6. HM Luong, B Ai, Y Zhao, TD Nguyen “Weak Enhanced Resonant Faraday Rotation in Pure Cobalt Plasmonic Lattices: Thickness Dependent Faraday Rotation Studies”, Journal of Magnetism and Magnetic Materials 468, 79-84 (2018)
  7. Q. C. Tong, M. H. Luong, T. M. Tran, J. Remmel, M. T. Do, D. M. Kieu, R. Ghasemi, D. T. Nguyen, and N. D. Lai, "Realization of desired plasmonic structures via a direct laser writing technique", J. Electron. Mater. 46, 3695-3701 (2016)
  8. T. D. Nguyen, S. Liu, G. Kumar, A. Nahata, Z. V. Vardeny, “Terahertz plasmonic properties of highly oriented pyrolytic graphite”, Appl. Phys. Lett. 102, 171107 (2013)