Hui Zhao Research Group

Frank Ceballos

Primary office:

  • From USA
  • Joined KU on Fall 2012
  • Graduated on Spring 2017 (Ph.D. with honors)
  • Postdoc at Medical College of Wisconsin

Selected Publications

18. Frank Ceballos, Peymon Zereshki, and Hui Zhao*, Separating Electrons and Holes by Monolayer Increments in van der Waals HeterostructuresPhysical Review Materials 1, 044001 (2017).

17. 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). 
Altmetric: 75 (96%). News: NSF News From the Field (Frontpage image)ZAPECNHealth Madicine NetworkScience AlertNano WerkEurek AlertPhys.orgKU News Release

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

15. Frank Ceballos, Qiannan Cui, Matthew Z. Bellus, and Hui Zhao*, Exciton Formation in Monolayer Transition Metal DichalcogenidesNanoscale 8, 11681-11688 (2016). 

14. 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). 

13. 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).

12. Peymon Zereshki, Yaqing Wei, Frank Ceballos, Matthew Z. Bellus, Samuel D. Lane, Shudi Pan, Run Long*, and Hui Zhao*, Photocarrier Dynamics in Monolayer Phosphorene and Bulk Black PhosphorusNanoscale 10, 11307-11313. 

11. Yuanyuan Li, Qiannan Cui, Frank Ceballos, Samuel D. Lane, Zeming Qi*, and Hui Zhao*, Ultrafast Interlayer Electron Transfer in Incommensurate Transition Metal Dichalcogenide Homo-bilayersNano Letters 17, 6661.

10. 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). 

9. Shudi Pan, Frank Ceballos, Matthew Z. Bellus, Peymon Zereshki, and Hui Zhao*, Ultrafast Charge Transfer Between MoTe2 and MoS2 Monolayers2D Materials 4, 015033 (2017).

8. 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). 
Altmetic: 61 (96%); News: I4U NewsPhotonics.comLab ManagerPhys.orgControlled EnviromentNano WerkNews WiseKU News Release.

7. 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). 

6. Matthew Z. Bellus, Frank Ceballos, Hsin-Ying Chiu*, and Hui Zhao*, Tightly Bound Trions in Transition Metal Dichalcogenide HeterostructuresACS Nano 9, 6459-6464 (2015).

5. 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).

4. Qiannan Cui, Frank Ceballos, Nardeep Kumar, and Hui Zhao*, Transient Absorption Microscopy of Monolayer and Bulk WSe2ACS Nano 8, 2970-2976 (2014).
Altmetric: 14 (91%); News: Phys.orgNano WerkKU News Release.

3. Nardeep Kumar, Qiannan Cui, Frank Ceballos, Dawei He, Yongsheng Wang* and Hui Zhao*, Exciton Diffusion in Monolayer and Bulk MoSe2Nanoscale 6, 4915-4949 (2014). 

2. Nardeep Kumar, Qiannan Cui, Frank Ceballos, Dawei He, Yongsheng Wang*, Hui Zhao*, Exciton-Exciton Annihilation in MoSe2 Monolayers, Physical Review B 89, 125427 (2014).
ESI Highly Cited Paper (Top 1%).

1. 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). [Rapid Communication] [Editor's Suggestion]
ESI Highly Cited Paper (Top 1%).