Hui Zhao Research Group



60. Xinwu Zhang, Dawei He, Lixin Yi, Siqi Zhao, Jiaqi He, Yongsheng Wang, and Hui Zhao, Electron Dynamics in MoS2-Graphite Heterostructures, Nanoscale, 10.1039/C7NR04763K (2017). [Full text, copyright RSC]

59. Frank Ceballos, Peymon Zereshki, and Hui Zhao, Separating Electrons and Holes by Monolayer Increments in van der Waals Heterostructures, Physical Review Materials 1, 044001 (2017). [Full text, copyright APS].

58. Erica E. Hroblak, Alessandro Principi, Hui Zhao, and Giovanni Vignale, Electrically Induced Charge-Density Waves in a Two-Dimensional Electron Liquid: Effects of Negative Electronic Compressibility, Physical Review B 96, 075422 (2017). [Full text, copyright APS]​

57. Qiannan Cui, Rodrigo A. Muniz, John E. Sipe, and Hui Zhao, Strong and Anisotropy Third Harmonic Generation in Monolayer ReS2, Physical Review B 95, 165406 (2017). [Full text, copyright APS]

56. Matthew Z. Bellus, Zhibin Yang, Jianhua Hao, Shu Ping Lau, and Hui Zhao, Amorphous Two-Dimensional Black Phosphorus with Exceptional Photocarrier Transport Properties, 2D Materials 4, 025063 (2017). [Full text, copyright IOP]

55. Frank Ceballos, Ming-Gang Ju, Samuel D. Lane, Xiao Cheng Zeng, and Hui Zhao, Highly Efficient and Anomalous Charge Transfer in van der Waals Trilayer Semiconductors​, Nano Letters 17, 1623-1628 (2017). [Full text, copyright ACS]

54. Jiaqi He, Dawei He, Yongsheng Wang, and Hui Zhao, Probing Effect of Electric Field on Photocarrier Transfer in Graphene-WS2 van der Waals Heterostructures​, Optics Express 25, 1949-1957 (2017). [Full text, copyright OSA]

53. Frank Ceballos and Hui Zhao, Ultrafast Laser Spectroscopy of Two-Dimensional Materials Beyond Graphene (Feature Article)Advanced Functional Materials 27, 604509 (2017). [Full Text, copyright John Wiley & Sons

52. Xufan Li, Alexander A. Puretzky, Xiahan Sang, Santosh KC, Mengkun Tian, Frank Ceballos, Masoud Mahjouri-Samani, Kai Wang, Raymond R. Unocic, Hui Zhao, Christopher M. Rouleau, David B. Geohegan, Kai Xiao, Suppression of Defects and Deep Levels Using Isoelectronic Tungsten Alloying in Monolayer MoSe2 (Cover Story)Ad​vanced Functional Material 27, 1603805 (2017). [Full Text, copyright John Wiley & Sons] ​


51. Shudi Pan, Frank Ceballos, Matthew Z. Bellus, Peymon Zereshki, and Hui Zhao, Ultrafast Charge Transfer Between MoTe2 and MoS2 Monolayers, 2D Materials 4, 015033 (2016). [Full text, copyright IOP]

50. Zhong Lin, Amber McCreary, Natalie Briggs, Shruti Subramanian, Kehao Zhang,Yifan Sun, Xufan Li, Nicholas J. Borys, Hongtao Yuan, Susan K. Fullerton-Shirey, Alexey Chernikov, Hui Zhao, Stephen McDonnel, Aaron M Lindenberg, Kai Xiao, Brian J LeRoy, Marija Drndić, James C. M. Hwang, Jiwoong Park, Manish Chhowalla, Raymond E. Schaak, Ali Javey, Mark C Hersam, Joshua Robinson, Mauricio Terrones, 2D Materials Advances: From Large Scale Synthesis and Controlled Heterostructures to Improved Characterization Techniques, Defects and Applications, 2D Materials 3, 042001 (2016)[Full text, copyright IOP]

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

48. Matthew Z. Bellus, Ming Li, Samuel D. lane, Frank Ceballos, Qiannan Cui, Xiao Cheng Zeng, and Hui Zhao, Type-I van der Waals heterostructure Formed by MoS2 and ReS2 Monolayers (Cover Story), Nanoscale Horizons, 2, 31-36 (2017). [Full text, copyright RSC]

47. Qiannan Cui, Alexey Lipatov, Jamie Wilt, Matthew Z. Bellus, Xiao-Cheng Zeng, Judy Wu, Alexander Sinitskii, and Hui Zhao, Time-Resolved Measurements of Photocarrier Dynamics in TiS3 Nanoribbons, ACS Applied Materials & Interfaces 8, 18334 (2016) [Full text, copyright ACS].

46. Kai Wang, Bing Huang, Mengkun Tian, Frank Ceballos, Ming-Wei Lin Masoud Mahjouri-Samani, Abdelaziz Boulesbaa, Alexander Puretzky, Christopher Rouleau, Mina Yoon, Hui Zhao, Kai Xiao, Gerd Duscher, and David Geohegan, Interlayer Coupling in Twisted WSe2/WS2 Bilayer Heterostructures Revealed by Optical Spectroscopy, ACS Nano 10, 6612-6622 (2016). [Full text, copyright ACS]

45. Frank Ceballos, Qiannan Cui, Matthew Z. Bellus, and Hui Zhao, Exciton Formation in Monolayer Transition Metal DichalcogenidesNanoscale 8, 11681-11688 (2016). [Full text, copyright RSC]


44. Jiaqi He, Dawei He, Yongsheng Wang, and Hui Zhao, Photocarrier Dynamics in Transition Metal Dichalcogenide Alloy Mo0.5W0.5S2, Optics Express 23, 33370-33377 (2015). [Full text, copyright OSA]

43. Frank CeballosMatthew Z. Bellus, Hsin-Ying Chiu, and Hui Zhao, Probing Charge Transfer Excitons in a MoSe2-WS2 van der Waals HeterostructureNanoscale 7, 17523-17528 (2015). [Full text, copyright RSC]

42. Qiannan Cui, Jiaqi He, Matthew Z. Bellus, Mirzojamhed Mirzokarimov, Tino Hofmann, Hsin-Ying Chiu, Matthew Antonik, Dawei He, Yongsheng Wang, and Hui Zhao,Transient Absorption Measurements on Anisotropic Monolayer ReS2Small 11, 5565-5571 (2015). [Full Text, copyright John Wiley & Sons]

41. Matthew Z. Bellus, Frank Ceballos, Hsin-Ying Chiu, and Hui Zhao, Tightly Bound Trions in Transition Metal Dichalcogenide HeterostructuresACS Nano 9, 6459-6464 (2015). [Full text, copyright ACS]

40. Jiaqi He, Dawei He, Yongsheng Wang, Qiannan Cui, Matthew Z. Bellus,  Hsin-Ying Chiu, and Hui Zhao, Exceptional and Anisotropic Transport Properties of Photocarriers in Black Phosphorus,  ACS Nano 9, 6436-6442 (2015). [Full text, copyright ACS]

39. Jiaqi He, Dawei He, Yongsheng Wang, Qiannan Cui, Frank Ceballos, and Hui Zhao, Spatiotemporal Dynamics of Excitons in Monolayer and Bulk WS2Nanoscale 7, 9526-9531 (2015). [Full Text, copyright RSC]

38. Maogang Gong, Tejas A. Shastry, Qiannan Cui, Ryan R. Kohlmeyer, Kyle A. Luck, Andrew Rowberg, Tobin J. Mark, Michael F. Durstock, Hui Zhao, Mark C. Hersam, and Shenqiang Ren, Understanding Charge Transfer in Carbon Nanotube-Fullerene Bulk Heterojunctions, ACS Applied Materials & Interfaces 7, 7428-7435 (2015). [Full Text, copyright ACS]

37. Qiannan Cui and Hui Zhao, Coherent Control of Nanoscale Ballistic Currents in Transition Metal Dichalcogenide ReS2ACS Nano 9, 3935-3941 (2015). [Full text, copyright ACS]


36. Jiaqi He, Nardeep Kumar, Matthew Z. Bellus, Hsin-Ying Chiu, Dawei He, Yongsheng Wang, and Hui Zhao, Electron Transfer and Coupling in Graphene-Tungsten Disulfide van der Waals Heterostructures, Nature Communications 5, 5622 (2014).  [Full text, copyright NPG]

35. Frank Ceballos, Matthew Z. Bellus, Hsin-Ying Chiu, and Hui Zhao, Ultrafast Charge Separation and Indirect Exciton Formation in a MoS2-MoSe2 van der Waals Heterostructure, ACS Nano 8, 12717-12724 (2014). [Full text, copyright ACS]

34. Nardeep Kumar, Jiaqi He, Dawei He, Yongsheng Wang, and Hui Zhao, Valley and Spin Dynamics in MoSe2 Two-Dimensional Crystals, Nanoscale 6, 12690 (2014). [Full text, copyright RSC]

33. Keliang He, Nardeep Kumar, Liang Zhao, Zefang Wang, Kin Fai Mak, Hui Zhao, and Jie Shan, Tightly Bound Excitons in Monolayer WSe2, Physical Review Letters 113, 026803 (2014). [Full text, copyright APS]

32. Qiannan Cui, Frank Ceballos, Nardeep Kumar, and Hui Zhao, Transient Absorption Microscopy of Monolayer and Bulk WSe2, ACS Nano 8, 2970-2976 (2014). [Full text, copyright ACS]

31. Nardeep Kumar, Qiannan Cui, Frank Ceballos, Dawei He, Yongsheng Wang and Hui Zhao, Exciton Diffusion in Monolayer and Bulk MoSe2, Nanoscale 6, 4915-4949 (2014). [Full text, copyright RSC]

30. Nardeep Kumar, Qiannan Cui, Frank Ceballos, Dawei He, Yongsheng Wang, Hui Zhao, Exciton-Exciton Annihilation in MoSe2 Monolayers, Physical Review B 89, 125427 (2014). [Full text, copyright APS]

29. Hui Zhao, Second Harmonic Microscopy Allows the Detection of Single Atomic Layers,  SPIE Newsroom, DOI: 10.1117/2.1201401.005262 (2014). [Full Text, copyright SPIE]​

28. Rui Wang,Hui-Chun Chien, Jatinder Kumar, Nardeep Kumar, Hsin-Ying Chiu, and Hui Zhao, Third-Harmonic Generation in Ultrathin Films of MoS2ACS Applied Materials & Interfaces 6, 314-318 (2014). [Full Text, copyright ACS]


27. Rui Wang, Paul Jacobs, Hui Zhao, and Arthur 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). [Full Text, copyright APS]

26. Caitlin Rochford, Nardeep Kumar, Jianwei Liu, Hui Zhao, and Judy Wu, All-optical Technique to Correlate Defect Structure and Carrier Transport in Transferred Graphene Films, ACS Applied Materials & Interfaces 5, 7176-7180 (2013). [Full Text, copyright ACS]

25. Maogang Gong, Alec Kirkeminde, Nardeep Kumar, Hui Zhao, and Shenqiang Ren, Ionic-Passivated FeS2 Photocapacitors for Energy Conversion and Storage, Chemical Communications 49, 9260-9262 (2013). [Full Text, copyright RSC]

24. Nardeep Kumar, Sina Najmaei, Qiannan Cui, Frank Ceballos, Pulickel M. Ajayan, Jun Lou, and Hui Zhao, Second Harmonic Microscopy of Monolayer MoS2, Physical Review B 87, 161403(R) (2013). [Full Text, copyright APS] [Rapid Communication] [Editor's Suggestion]

23. Nardeep Kumar, Jatinder Kumar, Chris Gerstenkorn, Rui Wang, Hsin-Ying Chiu, Arthur L. Smirl, and Hui Zhao, Third Harmonic Generation in Graphene and Graphite Thin Films, Physical Review B 87, 121406(R) (2013). [Full Text, copyright APS] [Rapid Communication]

22. Nardeep Kumar, Jiaqi He, Dawei He, Yongsheng Wang, and Hui Zhao, Charge Carrier Dynamics in Bulk MoS2 Crystal Studied by Transient Absorption Microscopy, Journal of Applied Physics 113, 133702 (2013). [Full Text, copyright AIP]


21. Brian A. Ruzicka, Rui Wang, Jessica Lohrman, Shenqiang Ren, and Hui Zhao, Exciton Diffusion in Semiconducting Single-Walled Carbon Nanotubes Studied by Transient Absorption Microscopy, Physical Review B 86, 205417 (2012). [Full Text, copyright APS]

20. Rui Wang, Brian A. Ruzicka, Nardeep Kumar, Matthew Z. Bellus, Hsin-Ying Chiu, and Hui Zhao, Ultrafast and Spatially Resolved Studies of Charge Carriers in Atomically-Thin Molybdenum Disulfide, Physical Review B 86, 045406 (2012). [Full Text, copyright APS]

19. Brian A. Ruzicka, Shuai Wang, Jianwei Liu, Kian-Ping Loh, Judy Z. Wu, and Hui Zhao,Spatially Resolved Pump-Probe Study of Single-Layer Graphene Produced by Chemical Vapor Deposition [Invited], Optics Materials Express 2, 708 (2012). [Full Text, copyright OSA]

18. Brian A. Ruzicka, Lalani K. Werake, Guowei Xu, Jacob B. Khurgin, E. Ya. Sherman, Judy Z. Wu, and Hui Zhao, Second-Harmonic Generation induced by Electric Currents in GaAs, Physical Review Letters 108, 077403 (2012). [Full Text, copyright APS]
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.

17. Alec Kirkeminde, Brian A. Ruzicka, Rui Wang, Sarah Puna, Hui Zhao, and Shenqiang Ren, Synthesis and Optoelectronic Properties of Two-Dimensional FeS2 Nanoplates, ACS Applied Materials & Interfaces 4, 1174 (2012). [Full Text, copyright ACS]

16. Brian A. Ruzicka and Hui Zhao, Optical Studies of Ballistic Currents in Semiconductors [Invited], Journal of the Optical Society of America B 29, A43 (2012). [Full Text, copyright OSA]


15. Nardeep Kumar, Brian A. Ruzicka, Nicholas P. Butch, P. Syers, K. Kirshenbaum, Johnpierre Paglione,and Hui Zhao, Spatially Resolved Femtosecond Pump-Probe Study of Topological Insulator Bi2Se3, Physical Review B 83, 235306 (2011). [Full Text, copyright APS]
Selected as Editor's Suggestions.

14. Brian A. Ruzicka, Nardeep Kumar, Shuai Wang, Kian-Ping Loh, and Hui Zhao, Two-Probe Study of Hot Carriers in Reduced Graphene Oxide, Journal of Applied Physics 109, 084322 (2011). [Full Text, copyright AIP]

13. Lalani K. Werake, Brian A. Ruzicka,and Hui Zhao, Observation of Intrinsic Inverse Spin Hall Effect, Physical Review Letters,106, 107205 (2011). [Full Text, copyright APS]
Featured in Physical Review Focus (Electrons Curve without Help,02/25/2011) and MRS News.


12. Brian A. Ruzicka, Lalani K. Werake, Hassama Samassekou, and Hui Zhao, Ambipolar Diffusion of Photoexcited Carriers in Bulk GaAs, Applied Physics Letters 97, 262119 (2010). [Full Text, copyright AIP]

11. Hui Zhao and Arthur L. Smirl, Injection and Detection of Ballistic Electrical Currents in Silicon, Applied Physics Letters 97, 212106 (2010). [Full Text, copyright AIP]

10. Brian A. Ruzicka, Shuai Wang, Lalani K. Werake, Ben Weintrub, Kian-Ping Loh, and Hui Zhao, Hot Carrier Diffusion in Graphene, Physical Review B 82, 195414 (2010). [Full Text, copyright APS]

9. Eric J. Loren, Hui Zhao, and Arthur L. Smirl, All-Optical Injection and Detection of Ballistic Charge Currents in Germanium, Journal of Applied Physics 108, 083111 (2010). [Full Text, copyright AIP]

8. Lalani K. Werake and Hui Zhao, Observation of Second-Harmonic Generation Induced by Pure Spin Currents, Nature Physics 6, 875 2010. [Full Text]
Featured in NSF News From the Field.

7. Brian A. Ruzicka, Lalani K. Werake, Hui Zhao, Shuai Wang, and Kian-Ping Loh, Femtosecond Pump-Probe Studies of Reduced Graphene Oxide Thin Films, Applied Physics Letters 96, 173106 (2010).[Full Text, copyright AIP]


6. Eric J. Loren, Brian A. Ruzicka, Lalani K. Werake, Hui Zhao, Henry M. van Driel, and Arthur L.Smirl, Optical Injection and Detection of Ballistic Pure Spin Currents in Ge, Applied Physics Letters 95, 092107 (2009).[full text, copyright AIP]

5. Brian A. Ruzicka and Hui Zhao, Power Dependence of Pure Spin Current Injection by Quantum Interference. Physical Review B 79, 155204 (2009).[full text, copyright APS]

4. Hui Zhao, Matthew Mower, and Giovanni Vignale, Ambipolar Spin Diffusion and D'yakonov-Perel' Spin Relaxation in GaAs Quantum Wells. Physical Review B 79, 115321 (2009).[full text, copyright APS]


3. Brian A. Ruzicka, Karl Higley, Lalani K. Werake, and Hui Zhao, All-Optical Generation and Detection of Subpicosecond AC Spin-Current Pulses in GaAs, Physical Review B 78, 045314 (2008).[full text, copyright APS]
Selected as Editor's Suggestions.

2. Hui Zhao, Temperature Dependence of Ambipolar Diffusion in Silicon-On-Insulator, Applied Physics Letters 92, 112104 (2008).[full text, copyright AIP]

1. Hui Zhao, Eric J. Loren, Arthur L. Smirl, and Henry M. van Driel, Dynamics of Charge Current Injected in GaAs by Quantum Interference, Journal of Applied Physics 103, 053510 (2008). [full text, copyright APS]