Hui Zhao Research Group


Full list of publications and citations available at Google Scholar and Publon.


96. S. Pan*, P. Valencia-Acuna, W. Kong, J. Liu, X. Ge, W. Xie, and H. Zhao*, Efficient interlayer electron transfer in a MoTe2/WS2/MoS2 trilayer heterostructure, Applied Physics Letters 118, 253106 (2021).

95. T. Zheng, X. Niu, H. Zhao, J. Wang, W. Zhao, J. Lu, and Z. Ni, Photoluminescence Enhancement at High Generation Rate Induced by Exciton Localization, Optics Letters 46, 2774-2777 (2021). 

94. P. Zereshki, P. Valencia-Acuna, and H. Zhao*, All-Optical Control of Charge Transfer and Interlayer Excitons in Transition Metal Dichalcogenide Heterostructures, Physical Review B 103, 165416 (2021).

93. P. Valencia-Acuna, T. R. Kafle, P. Zereshki, H. Peelaers, W. -L. Chan, and H. Zhao*, Transient Ultrafast Hole Transfer from Monolayer ReS2 to Thin-Film F8ZnPcApplied Physics Letters 118, 153104 (2021).

92. Y. Li, L. Zhang, J. Chang, Q. Cui, and H. Zhao*, Time-Resolved Observation of Hole Tunneling in van der Waals Multilayer HeterostructuresACS Applied Materials & Interfaces 13, 12425-12431 (2021).

91. T. Zheng, P. Valencia-Acuna, P. Zereshki, K. Beech, L. Deng, Z. Ni*, and H. Zhao*, Thickness dependent interlayer charge transfer in MoSe2/MoS2 heterostructures studied by femtosecond transient absorption measurementsACS Applied Materials & Interfaces 13, 6489-6495 (2021).

90. T. Zheng, Y.-C. Lin*, Y. Yu, P. Valencia-Acuna, A. A. Puretzky, R. Torsi, C. Liu, I. N. Ivanov, G. Duscher, D. B. Geohegan, Z. Ni*, K. Xiao, and H. Zhao*, Excitonic Dynamics in Janus MoSSe and WSSe Monolayers, Nano Letters 21, 931-937 (2021). 


89. P. Valencia-Acuna, P. Zereshki, M. M. Tavakoli, J.-H. Park, J. Kong, and H. Zhao*, Transient absorption of transition metal dichalcogenide monolayers studied by a photodope-pump-probe technique, Physical Review B 102, 035414 (2020).

88. Y. Fu, D. He, J. He, X. Han, J. Bai, Y. Wang*, and H. Zhao*, Photocarrier Dynamics in TlGaS2 Nanoflakes and van der Waals Heterostructures with Hexagonal Boron Nitride and WS2 Nanoflakes: Implications for Optoelectronic Applications, ACS Applied Nano Materials 3, 8702-87-7 (2020).

87. Q. Miao, D. He, X. Han, S. Liu, J. Fu, Y. Wang*, and H. Zhao*, Spatiotemporally Resolvde Optical measurements on Photocarrier Dynamics in Copper Monosulfide, The Journal of Physical Chemistry C 124, 14459-14464 (2020). 

86. A. Bian, D. He, S. Hao, Y. Fu, L. Zhang, J. He, Y. Wang*, and H. Zhao*, Dynamics of Charge-Transfer Excitons in a Transitiion Metal Dichalcogenide HeterostructureNanoscale 12, 8485-8492 (2020).

85. P. Wang, D. He, J. He, J. Fu, S. Liu, X. Han, Y. Wang*, and H. Zhao*, Transient Absorption Microscopy of Layered Crystal AsSbS3Journal of Physical Chemistry A 124, 1047-1052 (2020).

84. S. Liu, C. Tan, D. He, Y. Wang*, H. Peng*, and H. Zhao*, Optical Properties and Photocarrier Dynamics of Bi2O2Se Monolayer and NanoplatesAdvanced Optical Materials 8, 1901567 (2020).

83. S. Hao, M. Z. Bellus, D. He, Y. Wang*, and H. Zhao*, Controlling Exciton Transport in Monolayer MoSe2 by Dielectric ScreeningNanoscale Horizons 5, 139-143 (2020).

82. X. Han, D. He, L. Zhang, S. Hao, S. Liu, J. Fu, Q. Miao, J. He, Y. Wang*, and H. Zhao*, Type-II WS2-ReSe2 Heterostructure and its Charge Transfer PropertiesJournal of Materials Research 35, 1417-1423 (2020).


81. P. Yao, D. He, P. Zereshki, Y. Wang*, and H. Zhao*, Nonlinear optical effect of interlayer charge transfer in a van der Waals heterostructureApplied Physics Letters 115, 263103 (2019). [Editor's Pick]

80. P. Zereshki, M. M. Tavakoli, P. Valencia-Acuna, J.-H. Park, J. Kong, and H. Zhao*, Observation of charge transfer in mixed-dimensional heterostructures formed by transition metal  dichalcogenide monolayers and PbS quantum dotsPhysical Review B 100, 235411 (2019). 

79. S. Hao, D. He, Q. Miao, X. Han, S. Liu, Y. Wang*, and H. Zhao*, Upconversion Photoluminescence by Charge Transfer in a van der Waals TrilayerApplied Physics Letters 115, 173102 (2019). [Featured Article]

78. Y. Fu, D. He, J. He, A. Bian, L. Zhang, S. Liu, Y. Wang*, and H. Zhao*, Effect of Dielectric Environment on Excitonic Dynamics in Monolayer WS2Advanced Materials Interfaces 6, 190137 (2019).

77. T. R. Kaflem, B. Kattel, P. Yao, P. Zereshki, H. Zhao, and W.-L. Chan*, Effect of the Interfacial Energy Landscape on Photo-induced Charge Generation at the ZnPc-MoS2 InterfaceJournal of the American Chemical Society 141, 11328-11336 (2019).

76. L. Zhang, D. He, J. He*, Y. Fu, A. Bian, X. Han, S. Liu, Y. Wang*, and H. Zhao, Ultrafast charge transfer in a type-II MoS2-ReSe2 van der Waals heterostructureOptics Express 27, 17851-17858 (2019).

75. P. Zereshki, P. Yao, D. He, Y. Wang*, and H. Zhao*, Interlayer charge transfer in ReS2/WS2 van der Waals heterostructuresPhysical Review B 99, 195438 (2019).

74. X. Li, J. Zhang, A. Puretzky, A. Yoshimura, X. Sang, Q. Cui, Y. Li, L. Liang, A. Ghosh, H. Zhao, R. Unocic, V. Meunier, C. Rouleau, B. Sumpter, D. Geohegan, and K. Xiao*, Isotope-engineering the thermal conductivity of two-dimensional MoS2, ACS Nano 13, 2481-2489 (2019).

73. M. Z. Bellus, Z. Yang, P. Zereshki, J. Hao, S. P. Lau, and H. Zhao*, Efficient Hole Transfer from Monolayer WS2 to Ultrathin Amorphous Black PhosphorusNanoscale Horizons 4, 236-242 (2019). 

72. S. Pan, W. Kong, J. Liu, X. Ge, P. Zereshki, S. Hao, D. He, Y. Wang, H. Zhao*, Understanding Spatiotemporal Photocarrier Dynamics in Monolayer and Bulk MoTe2 for Optimized Optoelectronic DevicesACS Applied Nano Materials 2, 459-464 (2019).

71. Q. Cui*, Y. Li, J. Chang, H. Zhao, and C. Xu*, Temporally Resolving Synchronous Degenerate and Nondegenerate Two-Photon Absorption in 2D Semiconducting Monolayers (Cover Story)Laser & Photonics Reviews 13, 1800225 (2019). [Cover Story]


70. P. Zereshki, Y. Wei, R. Long*, and H. Zhao*, Layer-Coupled States Facilitate Ultrafast Charge Transfer in a Transition Metal Dichalcogenide Trilayer HeterostructureThe Journal of Physical Chemistry Letters 9, 5970-5978 (2018).

69. J. He, T. Li, L. Zhang, D. He*, Y. Wang, H. Ding*, N. Pan, and H. Zhao, Efficient Energy Transfer in In2Se3-MoSe2 van der Waals Heterostructures, ACS Omega 3, 11930-11936 (2018). 

68. J. He, L. Zhang, D. He*, Y. Wang*, Z. He, and H. Zhao, Ultrafast Transient Absorption Measurements of Photocarrier Dynamics in Monolayer and Bulk ReSe2Optics Express 26, 21501-21509 (2018).

67. S. D. Lane and H. Zhao*, Unipolar Optical Doping and Extended Photocarrier Lifetime in Graphene by Band Aliognment EngineeringNano Futures 2, 035003 (2018). Altmetric: 45 (94%); News: Materials TodayPV MagezineScience DailyNano WerkEurek AlertSpace DailyKU News Release.

66. M. Z. Bellus, M. Mahjouri-Samani, S. D. Lane, A. D. Oyedele, X. Li, A. A. Puretzky, D. Geohegan, K. Xiao, and H. Zhao*, Photocarrier Transfer Across Monolayer MoS2-MoSe2 Lateral HeterojunctionsACS Nano 12, 7068-7092 (2018). 

65. P. Zereshki, Y. Wei, F. Ceballos, M. Z. Bellus, S. D. Lane, S. Pan, R. Long*, and H. Zhao*, Photocarrier Dynamics in Monolayer Phosphorene and Bulk Black PhosphorusNanoscale 10, 11307-11313.

64. M. Li, M. Z. Bellus, J. Dai, L. Ma, X. Li, H. Zhao*, and X. C. Zeng*, A Type-I van der Waals Heterobilayer of WSe2/MoTe2Nanotechnology 29, 335203 (2018). 

63. S. Zhao, D. He, J. He, X. Zhang, L. Yi, Y. Wang*, and H. Zhao*, Probing Excitons in Transition Metal Dichalcogenidesby Drude-Like Exciton Intraband Absorption​, Nanoscale 10, 9538-9546 (2018).


62. Y. Li, Q. Liu, Q. Cui, Z. Qi*, J. Z. Wu, and H. Zhao*, Effect of Rhenium Dopants on Photocarrier Dynamics and Optical Properties of Monolayer, Few-Layer, and Bulk MoS2Nanoscale 9, 19360-19366 (2017). 

61. Y. Li, Q. Cui, F. Ceballos, S. D. Lane, Z. Qi*, and H. Zhao*, Ultrafast Interlayer Electron Transfer in Incommensurate Transition Metal Dichalcogenide Homo-bilayersNano Letters 17, 6661. 

60. T. R. Kafle, B. Kattel, S. D. Lane, T. Wang, H. Zhao, and W.-L. Chan*, Charge Transfer Exciton and Spin Flipping at Organic-Transition Metal Dichalcogenide InterfacesACS Nano 11, 10184-10192 (2017).

59. X. Zhang, D. He, L. Yi*, S. Zhao, J. He, Y. Wang*, and H. Zhao, Electron Dynamics in MoS2-Graphite HeterostructuresNanoscale 9, 14533 (2017). 

58. F. Ceballos, P. Zereshki, and H. Zhao*, Separating Electrons and Holes by Monolayer Increments in van der Waals HeterostructuresPhysical Review Materials 1, 044001 (2017).

57. E. E. Hroblak, A. Principi, H. Zhao, and G. Vignale*, Electrically Induced Charge-Density Waves in a Two-Dimensional Electron Liquid: Effects of Negative Electronic CompressibilityPhysical Review B 96, 075422 (2017). 

56. Q. Cui, R. A. Muniz, J. E. Sipe, and H. Zhao*, Strong and Anisotropy Third Harmonic Generation in Monolayer ReS2Physical Review B 95, 165406 (2017). 

55. M. Z. Bellus, Z. Yang, J. Hao, S. P. Lau*, and H. Zhao*, Amorphous Two-Dimensional Black Phosphorus with Exceptional Photocarrier Transport Properties2D Materials 4, 025063 (2017).

54. F. Ceballos, M.-G. Ju, S. D. Lane, X. C. Zeng*, and H. Zhao*, Highly Efficient and Anomalous Charge Transfer in van der Waals Trilayer Semiconductors​, Nano Letters 17, 1623-1628 (2017). Altmetric: 75 (96%). News: NSF News From the Field (Frontpage image)ZAPECNHealth Madicine NetworkScience AlertNano WerkEurek AlertPhys.orgKU News Release

53. J. He, D. He, Y. Wang*, and H. Zhao*, Probing Effect of Electric Field on Photocarrier Transfer in Graphene-WS2 van der Waals Heterostructures​, Optics Express 25, 1949-1957 (2017). 

52. F. Ceballos and H. Zhao*, Ultrafast Laser Spectroscopy of Two-Dimensional Materials Beyond Graphene (Feature Article)Advanced Functional Materials 27, 1604509 (2017). 

51. X. Li, A. A. Puretzky, X. Sang, S. KC, M. Tian, F. Ceballos, M. Mahjouri-Samani, K. Wang, R. R. Unocic, H. Zhao, C. M. Rouleau, D. B. Geohegan, K. Xiao*, Suppression of Defects and Deep Levels Using Isoelectronic Tungsten Alloying in Monolayer MoSe2 (Cover Story)Ad​vanced Functional Material 27, 1603805 (2017).

50. S. Pan, F. Ceballos, M. Z. Bellus, P. Zereshki, and H. Zhao*, Ultrafast Charge Transfer Between MoTe2 and MoS2 Monolayers2D Materials 4, 015033 (2017). 

49. M. Z. Bellus, M. Li, S. D. Lane, F. Ceballos, Q. Cui, X. C. Zeng*, and Hui Zhao*, Type-I van der Waals heterostructure Formed by MoS2 and ReS2 Monolayers (Cover Story)Nanoscale Horizons, 2, 31-36 (2017).
Altmetic: 61 (96%); News: I4U NewsPhotonics.comLab ManagerPhys.orgControlled EnviromentNano WerkNews WiseKU News Release.


48. Z. Lin, A. McCreary, N. Briggs, S. Subramanian, K. Zhang,Y. Sun, X. Li, Nicholas J. Borys, H. Yuan, S. K. Fullerton-Shirey, A. Chernikov, H. Zhao, S. McDonnel, A. M Lindenberg, K. Xiao, B. J. LeRoy, M. Drndić, J. C. M. Hwang, J. Park, M. Chhowalla, R. E. Schaak, A. Javey, M. C. Hersam, J. Robinson, M. Terrones*, 2D Materials Advances: From Large Scale Synthesis and Controlled Heterostructures to Improved Characterization Techniques, Defects and Applications2D Materials 3, 042001 (2016). 

47. H. Zhao, Nonlinear Optical Experiments on Graphene, Chapter 6 of Optical Properties of Graphene, Edited by Rolf Binder, World Scientific (2016).

46. Q. Cui, A. Lipatov, J. Wilt, M. Z. Bellus, X.-C. Zeng, J. Wu, A. Sinitskii*, and H. Zhao*, Time-Resolved Measurements of Photocarrier Dynamics in TiS3 NanoribbonsACS Applied Materials & Interfaces 8, 18334 (2016).

45. K. Wang*, B. Huang, M. Tian, F. Ceballos, M.-W. Lin, M. Mahjouri-Samani, A. Boulesbaa, A. Puretzky, C. Rouleau, M. Yoon, H. Zhao, K. Xiao, G. Duscher, and D. Geohegan*, Interlayer Coupling in Twisted WSe2/WS2 Bilayer Heterostructures Revealed by Optical SpectroscopyACS Nano 10, 6612-6622 (2016). 

44. F. Ceballos, Q. Cui, M. Z. Bellus, and H. Zhao*, Exciton Formation in Monolayer Transition Metal DichalcogenidesNanoscale 8, 11681-11688 (2016). 


43. J. He, D. He, Y. Wang*, and H. Zhao*, Photocarrier Dynamics in Transition Metal Dichalcogenide Alloy Mo0.5W0.5S2Optics Express 23, 33370-33377 (2015). 

42. F. Ceballos, M. Z. Bellus, H.-Y. Chiu, and H. Zhao*, Probing Charge Transfer Excitons in a MoSe2-WS2 van der Waals HeterostructureNanoscale 7, 17523-17528 (2015). 

41. Q. Cui, J. He, M. Z. Bellus, M. Mirzokarimov, T. Hofmann, H.-Y. Chiu, M. Antonik, D. He, Y. Wang*, and H. Zhao*,Transient Absorption Measurements on Anisotropic Monolayer ReS2Small 11, 5565-5571 (2015). 

40. M. Z. Bellus, F. Ceballos, H.-Y. Chiu*, and H. Zhao*, Tightly Bound Trions in Transition Metal Dichalcogenide Heterostructures, ACS Nano 9, 6459-6464 (2015). 

39. J. He, D. He, Y. Wang*, Q. Cui, M. Z. Bellus,  H.-Y. Chiu, and H. Zhao*, Exceptional and Anisotropic Transport Properties of Photocarriers in Black Phosphorus,  ACS Nano 9, 6436-6442 (2015). 

38. J. He, D. He, Y. Wang*, Q. Cui, F. Ceballos, and H. Zhao*, Spatiotemporal Dynamics of Excitons in Monolayer and Bulk WS2Nanoscale 7, 9526-9531 (2015). 

37. M. Gong, T. A. Shastry, Q. Cui, R. R. Kohlmeyer, K. A. Luck, A. Rowberg, T. J. Mark, M. F. Durstock, H. Zhao, M. C. Hersam, and S. Ren*, Understanding Charge Transfer in Carbon Nanotube-Fullerene Bulk Heterojunctions, ACS Applied Materials & Interfaces 7, 7428-7435 (2015). 

36. Q. Cui and H. Zhao*, Coherent Control of Nanoscale Ballistic Currents in Transition Metal Dichalcogenide ReS2ACS Nano 9, 3935-3941 (2015). 


35. J. He, N. Kumar, M. Z. Bellus, H.-Y. Chiu, D. He, Y. Wang*, and H. Zhao*, Electron Transfer and Coupling in Graphene-Tungsten Disulfide van der Waals Heterostructures, Nature Communications 5, 5622 (2014). Altmetric: 79 (98%); News: NSF News from the Field (Frontpage Image)Controlled EnviromentR&D MagezineScience DailyPhys.orgEurek AlertNanotechnology NowKU News Release.

34. F. Ceballos, M. Z. Bellus, H.-Y. Chiu*, and H. Zhao*, Ultrafast Charge Separation and Indirect Exciton Formation in a MoS2-MoSe2 van der Waals Heterostructure, ACS Nano 8, 12717-12724 (2014).

33. N. Kumar, J. He, D. He, Y. Wang*, and H. Zhao*, Valley and Spin Dynamics in MoSe2 Two-Dimensional Crystals, Nanoscale 6, 12690 (2014).

32. K. He, N. Kumar, L. Zhao, Z. Wang, K. F. Mak, H. Zhao, and J. Shan, Tightly Bound Excitons in Monolayer WSe2Physical Review Letters 113, 026803 (2014). ESI Hot Paper (Top 0.1%).

31. Q. Cui, F. Ceballos, N. Kumar, and H. Zhao*, Transient Absorption Microscopy of Monolayer and Bulk WSe2ACS Nano 8, 2970-2976 (2014). Altmetric: 14 (91%); News: Phys.orgNano WerkKU News Release.

30. N. Kumar, Q. Cui, F. Ceballos, D. He, Y. Wang* and H. Zhao*, Exciton Diffusion in Monolayer and Bulk MoSe2Nanoscale 6, 4915-4949 (2014).

29. N. Kumar, Q. Cui, F. Ceballos, D. He, Y. Wang*, H. Zhao*, Exciton-Exciton Annihilation in MoSe2 Monolayers, Physical Review B 89, 125427 (2014). ESI Highly Cited Paper (Top 1%).

28. H. Zhao, Second Harmonic Microscopy Allows the Detection of Single Atomic Layers,  SPIE Newsroom, DOI: 10.1117/2.1201401.005262 (2014).

27. R. Wang, H.-C. Chien, J. Kumar, N. Kumar, H.-Y. Chiu*, and H. Zhao*, Third-Harmonic Generation in Ultrathin Films of MoS2ACS Applied Materials & Interfaces 6, 314-318 (2014).


26. R. Wang, P. Jacobs, H. Zhao, and A. L. Smirl*, Quantum Interference and Control of the Dynamic Franz-Keldysh Effect: Generation and Detection of Terahertz Space-Charge, Applied Physics Letters 102, 251110 (2013).

25. C. Rochford, N. Kumar, J. Liu, H. Zhao, and J. Wu*, All-optical Technique to Correlate Defect Structure and Carrier Transport in Transferred Graphene Films, ACS Applied Materials & Interfaces 5, 7176-7180 (2013). 

24. M. Gong, A. Kirkeminde, N. Kumar, H. Zhao, and S. Ren*, Ionic-Passivated FeS2 Photocapacitors for Energy Conversion and Storage, Chemical Communications 49, 9260-9262 (2013).

23. N. Kumar, S. Najmaei, Q. Cui, F. Ceballos, P. M. Ajayan, J. Lou, and H. Zhao*, Second Harmonic Microscopy of Monolayer MoS2Physical Review B 87, 161403(R) (2013). [Rapid Communication] [Editor's Suggestion], ESI Highly Cited Paper (Top 1%).

22. N. Kumar, J. Kumar, C. Gerstenkorn, R. Wang, H.-Y. Chiu, A. L. Smirl, and H. Zhao*, Third Harmonic Generation in Graphene and Graphite Thin Films, Physical Review B 87, 121406(R) (2013). [Rapid Communication]

21. N. Kumar, J. He, D. He, Y. Wang*, and H. Zhao*, Charge Carrier Dynamics in Bulk MoS2 Crystal Studied by Transient Absorption Microscopy, Journal of Applied Physics 113, 133702 (2013). 


20. B. A. Ruzicka, R. Wang, J. Lohrman, S. Ren*, and H. Zhao*, Exciton Diffusion in Semiconducting Single-Walled Carbon Nanotubes Studied by Transient Absorption Microscopy, Physical Review B 86, 205417 (2012). 

19. R. Wang, B. A. Ruzicka, N. Kumar, M. Z. Bellus, H.-Y. Chiu*, and H. Zhao*, Ultrafast and Spatially Resolved Studies of Charge Carriers in Atomically-Thin Molybdenum Disulfide, Physical Review B 86, 045406 (2012). 

18. B. A. Ruzicka, S. Wang, J. Liu, K.-P. Loh, J. Z. Wu, and H. Zhao*, Spatially Resolved Pump-Probe Study of Single-Layer Graphene Produced by Chemical Vapor Deposition [Invited], Optics Materials Express 2, 708 (2012).

17. B. A. Ruzicka, L. K. Werake, G. Xu, J. B. Khurgin, E. Y. Sherman, J. Z. Wu, and H. Zhao*, Second-Harmonic Generation induced by Electric Currents in GaAs, Physical Review Letters 108, 077403 (2012). Featured in Physics Today (Frequency-Doubled Photons can Measure Current Density, March of 2012); Featured in Physics-Uspekhi (Vol. 55, Issue 4) as Physics News: Detection of Electric Currents in GaAs Based on Second-Harmonic Generation).

16. A. Kirkeminde, B. A. Ruzicka, R. Wang, S. Puna, H. Zhao, and S. Ren*, Synthesis and Optoelectronic Properties of Two-Dimensional FeS2 Nanoplates, ACS Applied Materials & Interfaces 4, 1174 (2012). 

15. B. A. Ruzicka and H. Zhao*, Optical Studies of Ballistic Currents in Semiconductors [Invited], Journal of the Optical Society of America B 29, A43 (2012).


14. N. Kumar, B. A. Ruzicka, N. P. Butch, P. Syers, K. Kirshenbaum, J. Paglione,and H. Zhao*, Spatially Resolved Femtosecond Pump-Probe Study of Topological Insulator Bi2Se3Physical Review B 83, 235306 (2011). Selected as Editor's Suggestions

13. B. A. Ruzicka, N. Kumar, S. Wang, K.-P. Loh, and H. Zhao*, Two-Probe Study of Hot Carriers in Reduced Graphene Oxide, Journal of Applied Physics 109, 084322 (2011). 

12. L. K. Werake, B. A. Ruzicka,and H. Zhao*, Observation of Intrinsic Inverse Spin Hall Effect, Physical Review Letters,106, 107205 (2011). Featured in Physical Review Focus (Electrons Curve without Help,02/25/2011) and MRS News.


11. B. A. Ruzicka, L. K. Werake, H. Samassekou, and H. Zhao*, Ambipolar Diffusion of Photoexcited Carriers in Bulk GaAs, Applied Physics Letters 97, 262119 (2010). 

10. H. Zhao and A. L. Smirl*, Injection and Detection of Ballistic Electrical Currents in SiliconApplied Physics Letters 97, 212106 (2010). 

9. B. A. Ruzicka, S. Wang, L. K. Werake, B. Weintrub, K.-P. Loh, and H. Zhao*, Hot Carrier Diffusion in GraphenePhysical Review B 82, 195414 (2010).

8. E. J. Loren, H. Zhao, and A. L. Smirl*, All-Optical Injection and Detection of Ballistic Charge Currents in Germanium, Journal of Applied Physics 108, 083111 (2010). 

7. L. K. Werake and H. Zhao*, Observation of Second-Harmonic Generation Induced by Pure Spin Currents, Nature Physics 6, 875 (2010). Featured in NSF News From the Field.

6. B. A. Ruzicka, L. K. Werake, H. Zhao*, S. Wang, and K.-P. Loh, Femtosecond Pump-Probe Studies of Reduced Graphene Oxide Thin Films, Applied Physics Letters 96, 173106 (2010).


5. E. J. Loren, B. A. Ruzicka, L. K. Werake, H. Zhao, H. M. van Driel, and A. L.Smirl*, Optical Injection and Detection of Ballistic Pure Spin Currents in Ge, Applied Physics Letters 95, 092107 (2009).

4. B. A. Ruzicka and H. Zhao*, Power Dependence of Pure Spin Current Injection by Quantum InterferencePhysical Review B 79, 155204 (2009).

3. H. Zhao, M. Mower, and G. Vignale, Ambipolar Spin Diffusion and D'yakonov-Perel' Spin Relaxation in GaAs Quantum WellsPhysical Review B 79, 115321 (2009).


2. B. A. Ruzicka, K. Higley, L. K. Werake, and H. Zhao*, All-Optical Generation and Detection of Subpicosecond AC Spin-Current Pulses in GaAsPhysical Review B 78, 045314 (2008).
Selected as Editor's Suggestions.

1. H. Zhao, Temperature Dependence of Ambipolar Diffusion in Silicon-On-InsulatorApplied Physics Letters 92, 112104 (2008).