Yun-Chorng Chang 張允崇
Associate Research Fellow

Ways to contact me:
Fax: 02-2787-3122
Address: Research Center for Applied Sciences, Academia Sinica
128 Sec. 2, Academia Rd., Nankang, Taipei 11529, Taiwan



Research Fields:

  • Nanophotonics and Plasmonics
  • Nanofabrication
  • Biosensing

Recent Publications:

  1. C. Y. Li, C. C. Liu, W. C. Lai, Y. -C. Lan*, and Y. C. Chang*, “Quantifying the Plasmonic Generation Rate of Non‐Thermal Hot Carriers with an AlGaN/GaN High‐Electron‐Mobility Transistor”, Advanced Science, 2021/07, 8(13) 2100362.
    [ DOI: ]
  2. C. Y. Lin, C. C. Liu, Y. Y. Chen, K. Y. Chiu, J. D. Wu, B. L. Lin, C. H. Wang, Y. F. Chen, S. -H. Chang*, and Y. C. Chang*, “Molecular chirality detection with periodic arrays of three-dimensional twisted metamaterials”, ACS Applied Materials & Interfaces, 2021/01, 11(01), 1152–1157.
    [ DOI: ]
  3. M. C. Chou, C. Y. Lin, B. L. Lin, C. H. Wang, S. H. Chang, W. C. Lai, K. Y. Lai, and Y. C. Chang*, “Polarization-Selecting III-Nitride Elliptical Nanorod Light-Emitting Diodes Fabricated with Nanospherical-Lens Lithography”, ACS Nano, 2018/08, 12(08), 8748–8757.
    [ DOI: ]
  4. Y. H. Chien, C. H. Wang, C. C. Liu, S. H. Chang, K. V. Kong, and Y. C. Chang*, “Large-scale nanofabrication of designed nanostructures using Angled Nanospherical-Lens Lithography for Surface Enhanced Infrared Absorption Spectroscopy”, ACS Applied Materials & Interfaces, 2017/07, 9(29), 24917-24925.
    [ DOI: ]
  5. Y. C. Chang*, H. C. Chung, S. C. Lu, T. F. Guo, “Large-scale sub-100nm Au nanodisk array fabricated using Nanospherical-Lens Lithography: a low-cost localized surface plasmon resonance sensor”, Nanotechnology, 2013/03, 24(09), 095302
    [ DOI:10.1088/0957-4484/24/9/095302 ]
  6. Y. C. Chang*, S. C. Lu, H. C. Chung, S. M. Wang, T. D. Tsai, T. F. Guo, “High-Throughput Nanofabrication of Infra-red and Chiral Metamaterials using Nanospherical-Lens Lithography”, Scientific Reports, 2013/11, 3, 3339.
    [ DOI:10.1038/srep03339 ]
  7. I. T. Chen, P. H. Chang, Y. C. Chang*, T. F. Guo*, “Lighting Up Ultraviolet Fluorescence From Chicken Albumen Through Plasmon Resonance Energy Transfer of Gold Nanoparticles”, Scientific Reports , 2013/03, 3, 1505.
    [ DOI:10.1038/srep01505 ]
  8. Y. C. Chang*, C. B. Tseng, “Surface Plasmon-Enhanced Spontaneous Emission from InGaN/GaN multiple-quantum-wells by Indium nanoparticles fabricated using Nanosphere Lithography”, Plasmonics, 2013/09, 8(3), 1395-1400.
    [ DOI:10.1007/s11468-013-9552-8 ]
  9. Y. H. Liao, Y. J. Chang, Y. Yoshiike, Y. C. Chang*, Y. R. Chen*, “Negatively charged gold nanoparticles inhibit Alzheimer's amyloid-beta fibrillization, induce fibril dissociation, and mitigate neurotoxicity”, Small, 2012/12, 8(23), 3631-3639.
    [ DOI:10.1002/smll.201201068 ]
  10. Y. C. Chang*, S. M. Wang, H. C. Chung, C. B. Tseng, S. –H. Chang, “Observation of Absorption-Dominated Bonding Dark Plasmon Mode from Metal-Insulator-Metal Nanodisk Arrays fabricated by Nanospherical-Lens Lithography”, ACS Nano, 2012/04, 6(4), 3390-3396.
    [ DOI:10.1021/nn300420x ]
  11. Y. C. Chang*, S. M. Wang, H. C. Chung, C. B. Tseng, S. –H. Chang, “Large-Area Bowtie Nanoantenna Arrays Fabricated with Economic Oxygen Plasma-Assisted Nanosphere Lithography”, Plasmonics, 2011/09, 6, 599-604.
    [ DOI:10.1007/s11468-011-9240-5 ]
  12. C. C. Tsai, P. L. Chiang, C. J. Sun, T. W. Lin, M. H. Tsai, Y. C. Chang*, and Y. T. Chen*, “Surface potential variations on a silicon nanowire transistor in biomolecular modification and detection”, Nanotechnology, 2011/04, 22, 135503.
    [ DOI:10.1088/0957-4484/22/13/135503 ]
  13. Y. C. Chang*, “Effects of illumination on the excess carriers dynamics and variations of the surface charge states in an AlGaN/GaN heterostructure”, Journal of Applied Physics, 2010/02, 107, 033706.
    [ DOI:10.1063/1.3295916 ]
  14. Y. C. Chang*, J. K. Sheu, and Y. –L Li, “Sub-bandgap laser light-induced excess carrier transport between surface states and two-dimensional electron gas channel in AlGaN/GaN structure”, IEEE Journal of Quantum Electronics, 2010/01, 46, 112-115.
    [ DOI:10.1109/JQE.2009.2029065 ]
  15. Y. C. Chang*, H. W. Chen, and S. H. Chang, “Enhanced near-field imaging contrasts of silver nanoparticles by localized surface plasmon”, IEEE Journal of Selected Topics in Quantum Electronics, 2008/11, 14, 1536-1539.
    [ DOI:10.1109/JSTQE.2008.920037 ]
  16. Y. -L. Li, W. C. Lai, and Y. C. Chang*, “Excess carrier dynamics of InGaN/GaN multiple-quantum-well light-emitting diodes with various silicon barrier doping profiles”, Applied Physics Letters, 2008/04, 92(15), 152109.
    [ DOI:10.1063/1.2912035 ]
  17. Y. C. Chang*, F. Y. Chou, P. H. Yeh, H. W. Chen, S. H. Chang, Y. C. Lan, T. F. Guo, T. C. Tsai, and C. T. Lee, “Effects of Surface Plasmon Resonant Scattering on the Power Conversion Efficiency of Organic Thin-Film Solar Cells”, Journal of Vacuum Science Technology B, 2007/11, 25, 1899-1902.
    [ DOI:10.1116/1.2806959 ]
  18. Y. C. Chang*, Y. –L. Li, D. B. Thomson, and R. F. Davis, “Phonon-Assisted Stimulated Emission from Pendeo-Epitaxy GaN Stripes Grown on 6H-SiC Substrates”, Applied Physics Letters, 2007/07, 91, 051119.
    [ DOI:10.1063/1.2767239 ]
  19. Y. C. Chang*, Y. –L. Li, T. H. Lin, and J. K. Sheu, “Variations of Channel Conductance in AlGaN/GaN Structure with Sub-Bandgap Laser Light and Above-Bandgap Illuminations”, Japanese Journal of Applied Physics, 2007/06, 46, 3382-3384
    [ DOI:10.1143/JJAP.46.3382 ]
  20. Y. C. Chang*, R. M. Kolbas, Z. J. Reitmeier, and R. F. Davis, “Effect of Thermal Annealing on the Metastable Optical Properties of GaN Thin Films”, Journal of Vacuum Science Technology A, 2006/07, 24, 1051-1054
    [ DOI:10.1116/1.2209656 ]
  21. Y. C. Chang*, A. L. Cai, J. F. Muth, R. M. Kolbas, M. Park, J. J. Cuomo, A. Hanser, and J. Bumgarner, “Optical and structural studies of hydride vapor phase epitaxy grown GaN”, Journal of Vacuum Science Technology A, 2003/05, 21, 701-705
    [ DOI:10.1116/1.1568346 ]
  22. Y. C. Chang, A. L. Cai, M. A. L. Johnson, J. F. Muth, R. M. Kolbas*, Z. J. Reitmeier, S. Einfeldt, and R. F. Davis, “Electron-beam-induced optical memory effects in GaN”, Applied Physics Letters, 2002/04, 80, 2675-2677
    [ DOI:10.1063/1.1469222 ]
  23. Y. C. Chang, A. E. Oberhofer, J. F. Muth, R. M. Kolbas*, and R. F. Davis, “Optical metastability of sub-bandgap (2.2eV) yellow luminescence in GaN”, Applied Physics Letters, 2001/07, 79, 281-283


  1. 張允崇, “偏振選擇的奈米發光二極體”, Taiwan Patent, I727247, 2021-05-11.
  2. Y. C. Chang, “POLARIZATION-SELECTING NANO LIGHT-EMITTING DIODES”, US Patent, US10804431B2, 2020-10-13.