Hui Zhao Research Group

Frank Ceballos

Ph.D.
Primary office:


  • Joined KU on Fall 2012
  • Graduated on Spring 2017 (Ph.D. with honors)

Selected Publications

  1.  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 DOI: 10.1021/acs.nanolett.6b04815 ​(2017). [Full text, copyright ACS]
  2. Frank Ceballos and Hui Zhao, Ultrafast Laser Spectroscopy of Two-Dimensional Materials Beyond Graphene (Feature Article)Advanced Functional Materials, DOI: 10.1002/adfm.201604509 (2016). [Full Text, copyright John Wiley & Sons
  3. 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]
  4. Frank Ceballos, Matthew Z. Bellus, Hsin-Ying Chiu, and Hui Zhao, Probing Charge Transfer Excitons in MoSe2-WS2 van der Waals HeterostructureNanoscale 7, 17523-17528 (2015). [Full text, copyright RSC]
  5. Frank Ceballos, Matthew Z. BellusHsin-Ying Chiu, and Hui Zhao, Ultrafast Charge Separation and Indirect Exciton Formation in a MoS2-MoSe2 van der Waals HeterostructureACS Nano 8, 12717-12724 (2014). [Full text, copyright 
  6. Shudi Pan, Frank Ceballos, Matthew Z. Bellus, Peymon Zereshki, and Hui Zhao, Ultrafast Charge Transfer Between MoTe2 and MoS2 Monolayers2D Materials 4, 015033 (2016). [Full text, copyright IOP]
  7. 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 MonolayersNanoscale Horizons, 2, 31-36 (2017). [Full text, copyright RSC]
  8. 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 MoSe2Ad​vanced Functional Material (DOI: 10.1002/adfm.201603850 (2016). [Full Text, copyright John Wiley & Sons
  9. 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 SpectroscopyACS Nano 10, 6612-6622 (2016). [Full text, copyright 
  10. 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]
  11. 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]
  12. Qiannan Cui, Frank Ceballos, Nardeep Kumar, and Hui Zhao, Transient Absorption Microscopy of Monolayer and Bulk WSe2ACS Nano 8, 2970-2976 (2014). [Full text, copyright ACS]
  13. Nardeep Kumar, Qiannan Cui, Frank Ceballos, Dawei He, Yongsheng Wang and Hui Zhao, Exciton diffusion in monolayer and bulk MoSe2Nanoscale 6, 4915-4949 (2014). [Full text, copyright RSC]
  14. 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]
  15. Nardeep Kumar, Sina Najmaei, Qiannan Cui, Frank Ceballos, Pulickel M. Ajayan, Jun Lou, and Hui Zhao, Second harmonic microscopy of monolayer MoS2Physical Review B 87, 161403(R) (2013). [Full Text, copyright APS] [Rapid Communication] [Editor's Suggestion]