Current Research

• Thin films growth, epitaxy, and nanostructures
• Complex oxides and electrical-magnetic-optical functional properties
• Electronic and band structure engineering

Interested Topics

• 2D materials epitaxy and optoelectronic applications
• Solar cell and PEC water splitting
• Transparent conductor and transistor applicaitons

Honors

• 2016   UoM Dean’s Scholarship Award        
• 2016   Royal Society Research Grand           
• 2015   EPSRC DTP Scholarship Award        
• 2015   UoM EPS Research Starting Grant    
• 2014   JSPS Fellowship
• 2011   Research Fellow Scholarship, ORNL
• 2010   Excellent BHU Ph.D. Thesis Award
• 2010   BES Projects, US Dept. of Energy     
• 2009   Research Fellow Scholarship, PNNL
• 2008   Competitive Innovation Foundation BHU Research Grant   

International Collaborations

• Prof. Sean Li (University of New South Wales) – Functional Materials and nanostructures
• Dr. Scott Chambers (Pacific Northwest National Laboratory) – Film epitaxy and photoemission
• Prof. David Singh (University of Missouri) – Density functional theory
• Prof. Aimin Song (University of Manchester) – Transistor and electronic devices

Editorships

• Editorial board member of Scientific Reports (2016-p)
• Editorial board member of Frontiers in Materials (2014-p)
• Editorial board member of Journal of Materials Science and Engineering A & B (2015-p)
• Previously Specialist Editor of Advances in Condensed Matter Physics (2013)

Publications as an Author and Co-author
 

1. A. Tselev, R. K. Vasudevan, A. G. Gianfranceso, L. Qiao, T. L. Meyer, H. N. Lee, M. D. Biegalski,  et al., “Growth Mode Transition in Complex Oxide Heteroepitaxy: Atomically Resolved Studies,”  Crystal Growth & Design (2016).
2. C. Y. Lu, K. Jin, L. K. Beland, F. F. Zhang, T. N. Yang, L. Qiao, Y. Zhang, H. B. Bei, et al., “Direct Observation of Defect Range and Evolution in Ion-Irradiated Single Crystalline Ni and Ni Binary Alloys,”  Scientific Reports 6, 19994 (2016).
3. L. Qiao, J. H. Jang, D. J. Singh, Z. Gai, H. Y. Xiao, A. Mehta, Z. X. Feng, H. Zhou, S. Li, A. Borisevich, and M. D. Biegalski, “Dimensionality Control of Octahedral Symmetry-Mismatch and Magnetic Functionality In Epitaxial Correlated Cobaltite Heterostructures,” Nano Letters 15, 4677 ( 2015). ANL/APS research highlight
4. Z. X. Feng, X. Chen, L. Qiao, A. L. Lipson, T. T. Fister, L. Zeng, C. J. Kim, T. H. Yi, N. Sa, D. L. Proffit, A. K. Burrell, J. Cabana, B. J. Ingram, M. D. Biegalski, M. J. Bedzyk, and P. Fenter, “Phase-Controlled Electrochemical Activity of Epitaxial Mg-Spinel Thin Films,” ACS Applied Materials & Interfaces 7, 28438 (2015).
5. A. Tselev, R. K. Vasudevan, A. G. Gianfranceso, L. Qiao, P. Ganesh, T. L. Meyer, H. N. Lee, et al., “Surface Control of Epitaxial Manganite Films via Oxygen Pressure,”  ACS Nano 9, 4316 (2015). *ORNL research highlight
6. Q. He, R. Ishikawa, A. R. Lupini, L. Qiao, E. J. Moon, O. Ovchinnikov, S. J. May, et al., “Towards 3D Mapping of BO6 Octahedron Rotations at Perovskite Heterointerfaces, Unit Cell by Unit Cell,”  ACS Nano 9, 8412 (2015).
7. M. D. Biegalski, L. Qiao, Y. J. Gu, A. Mehta, Q. He, Y. Takamura, A. Borisevich, and L. Q. Chen “Impact of Symmetry on the Ferroelectric Properties of CaTiO3 Thin Films,” Applied Physics Letters 106, 162904 (2015).
8. G. X. Cao, D. J. Singh, X.-G. Zhang, G. Samolyuk, L. Qiao, C. Parish, K. Jin, Y. W. Zhang, H. W. Guo, et al., “Ferromagnetism and Nonmetallic Transport of Thin-Film α-FeSi2: A Stabilized Metastable Material,” Physical Review Letters 114, 147202 (2015).  *ORNL/CNMS research highlight
9. K H L Zhang, Y Du, P V Sushko, M E Bowden, V Shutthanandan, L Qiao, G X Cao, Z Gai, S Sallis, et al., “Electronic and magnetic properties of epitaxial perovskite SrCrO3(001),”  Journal of Physics: Condensed Matter 27, 245605(2015).
10. L. Qiao, H. Y. Xiao, W. J. Weber, and M. D. Biegalski, “Coexistence of epitaxial lattice rotation and twinning tilt induced by surface symmetry mismatch,” Applied Physics Letters 104, 221602 (2014).
11. L. Qiao, W. Li, H. Y. Xiao, H. M. Meyer, X. L. Liang, N. V. Nguyen, et al., “Electronic Structure and Band Alignment at Epitaxial Spinel/Perovskite Heterojunction,” ACS Applied Materials & Interfaces 6, 14338 (2014).
12. X. Xiang,* L. Qiao,* H.Y. Xiao, F. Gao, S. Li,* X.T. Zu, W. L. Zhou, “Effects of surface defects on two-dimensional electron gas at NdAlO3/SrTiO3 interface,” Scientific Reports, 4, 5477 (2014).
13. K. A. Stoerzinger, L. Qiao, M. D. Biegalski, and Y. Shao-Horna, “Orientation-Dependent Oxygen Evolution Activities of Rutile IrO2 and RuO2,” Journal of Physical Chemistry Letters 5, 1636 (2014).
14. L. Qiao, H. Y. Xiao, H. M. Meyer, J. N. Sun, C. M. Rouleau, A. A. Puretzky, D. B. Geohegan, I. Ivanov, M. Yoon, W.J. Weber, and M. D. Biegalski, “Nature of The Band Gap and Origin of The  Electro- / Photo- Activity of Co3O4,” Journal of Materials Chemistry C 1, 4628 (2013). *Journal Front Cover and CNMS research highlight
15. L. Qiao, K. H. L. Zhang, M. E. Bowden, T. Varga, V. Shutthanandan, R. Colby, Y. Du, B. Kabius, P. V. Sushko, et al., “The Impacts of Cation Stoichiometry and Substrate Surface Quality on Nucleation, Structure, Defect Formation, and Intermixing in Complex Oxide Heteroepitaxy – LaCrO3 on SrTiO3(001),” Advanced Functional Materials 23, 2953 (2013).
16. L. Qiao, H. Y. Xiao, S. M. Heald, M. E. Bowden, T. Varga, G. J. Exarhos, M. D. Biegalski, I. N. Ivanov, W. J. Weber, T. C. Droubay, and S. A. Chambers, “The Impact of Crystal Symmetry on the Electronic Structure and Functional Properties of Complex Lanthanum Chromium Oxides,” Journal of Materials Chemistry C 1, 4527 (2013). *Invited paper
17. P. V. Sushko, L. Qiao, M. Bowden, T. Varga, G. Exarhos, and S. A. Chambers, “Multiband Optical Absorption in Thin Film LaCrO3 Controlled by Lattice Strain,” Physical Review Letters 110, 077401 (2013). *PNNL research highlight
18. R. Colby, L. Qiao, K.H.L. Zhang, V. Shutthanandan, J. Ciston, B. Kabius, S.A. Chambers, “Cation intermixing and electronic deviations at the insulating LaCrO3/SrTiO3(001) interface,” Physical Review B 88, 155325 (2013).
19. A. Tselev, P. Ganesh, L. Qiao, W. Siemons, Z. Gai, M. D. Biegalski, A. P. Baddorf, and S. V. Kalinin, “Oxygen Control of Atomic Structure and Physical Properties of SrRuO3 surfaces,” ACS Nano  7, 4403 (2013). *ORNL research highlight
20. L. Qiao, T. C. Droubay, T. Varga, M. E. Bowden, V. Shutthanandan, Z. Zhu, et al., “Epitaxial Growth, Structure and Intermixing at the LaAlO3/SrTiO3 Interface as the Film Stoichiometry is Varied,” Physical Review B 83, 085408 (2011).
21. S. A. Chambers, L. Qiao, T. C. Droubay, et al. , “Band Alignment, Build-in Potentials and the Absence of Conductivity at the LaCrO3/SrTiO3 Heterojunction,” Physical Review Letters 107, 206802 (2011). *PNNL research highlight
22. L. Qiao, T. C. Droubay, M. E. Bowden, V. Shutthanandan, T. C. Kaspar, S. A. Chambers, “LaCrO3 Heteroepitaxy on SrTiO3 (001) by Molecular Beam Epitaxy,” Applied Physics Letters 99, 061904 (2011).
23. L. Qiao, T. C. Droubay, T. C. Kaspar, et al. , “Cation Mixing, Band Offsets and Electrical Fields at LaAlO3/SrTiO3 (001) Heterojunction with variable La:Al atom ratio,” Surface Science 605, 1381 (2011). *PNNL/EMSL research highlight
24. L. Qiao and X. F. Bi, “Dielectric Phase Transition and Relaxor Behavior in BaTiO3/LaNiO3 Superlattice,” CrystEngComm 13, 1693 (2011) *Royal Society of Chemistry Hot Article
25. L. Qiao and X. F. Bi, “Enhanced Ferroelectricity of BaTiO3 Film by Optimizing its Conducting Electrode Layer,” Journal of Materials Chemistry 21, 6280 (2011). *Journal Back Cover
26. L. Qiao and X. F. Bi, “Direct Observation of Ni3+ and Ni2+ in Correlated LaNiO3-δ Films,” Europhysics Letters 93, 57002 (2011).
27. L. Qiao and X. F. Bi, “Direct Observation of Oxygen Vacancy and Its Effect on the Microstructure, Electronic and Transport Properties of Sputtered LaNiO3-δ Films on Si Substrates,” Thin Solid Films 519, 943 (2010).
28. L. Qiao, T. C. Droubay, V. Shutthanandan, et al. , “Thermodynamic Instability at the Stoichihometric LaAlO3/SrTiO3(001) Interface,”  Journal of Physics: Condensed Matter 22, 312201 (2010). *Institute of Physics 2010 Highlights
29. T. C. Droubay, L. Qiao, T. C. Kaspar, M. H. Engelhard, V, Shutthanandan, S. A. Chambers, “Nonstoichiometric Material Transfer in the Pulsed Laser Deposition of LaAlO3,,” Applied Physics Letters 97, 124105 (2010).
30. L. Qiao and X. F. Bi, “Origin of Compressive Strain and Phase Transition Characteristics of Thin BaTiO3 Film Grown on LaNiO3/Si Substrate,” Physics Status Solidi A 207, 2511 (2010). *Journal Inside Cover
31. S. A. Chambers, M. H. Engelhard, V. Shutthanandan, Z. Zhu, T. C. Droubay, L. Qiao, P. V. Sushko, T. Feng, H. D. Lee, T. Gustafsson, E. Garfunkel, A. Shah, J.-M. Zuo, Q. M. Ramasse, “Intermixing, Instability and Electronic Structure at the Epitaxial LaAlO3/SrTiO3(001) Heterojunction,” Surface Science Reports 65, 317 (2010). *Invited review article
32. L. Qiao and X. F. Bi, “Dielectric Behavior of BaTiO3-Ni Composite Ferroic Films,” Applied Physics A 95, 733 (2009).
33. L. Qiao and X. F. Bi, “Effect of Different Buffer Layers on the Microstructure and Dielectric Properties of Different Buffer Layers on the Microstructure and Dielectric Properties of BaTiO3 Thin Films Grown on Si Substrates, Journal of Alloys and Compounds 477, 560 (2009).
34. L. Qiao and X. F. Bi, “Effect of LaNiO3 Buffer Layer Thickness on the Microstructure and Electrical Properties of (100)-Oriented BaTiO3 Thin Films on Si Substrate,” Thin Solid Films 317, 3784 (2009).
35. L. Qiao and X. F. Bi, “Microstructural Orientation, Strain State and Diffusive Phase Transition of Pure Argon Sputtered BaTiO3 Film,” Journal of Physics D: Applied Physics 42, 175508 (2009).
36. L. Qiao and X. F. Bi, “Microstructure and Grain Size Dependence of Ferroelectric Properties of BaTiO3 Thin Films on LaNiO3 Buffered Si,” Journal of European Ceramic Society 29, 1995 (2009).
37. L. Qiao and X. F. Bi, “Nanostructure and Performance of Pt-LaNiO3 Composite Film for Ferroelectric Film Devices, Acta Materialia 57, 4109 (2009).
38. L. Qiao and X. F. Bi, “Dielectric Response and Structure of In-Plane Tensile Strained BaTiO3 Thin Films Grown on the LaNiO3 Buffered Si Substrate,” Applied Physics Letters 92, 062912 (2008).
39. L. Qiao and X. F. Bi, “Domain Configuration and Phase Transition for BaTiO3 Thin Films on Tensile Si Substrates,” Journal of Crystal Growth 310, 5327 (2008).
40. L. Qiao and X. F. Bi, “Effect of Substrate Temperature on the Microstructure and Transport Properties of Highly (100)-Oriented LaNiO3-delta Films by Pure Argon Sputtering,” Journal of Crystal Growth 310, 3653 (2008).
41. L. Qiao and X. F. Bi, “Evaluation of Magnetoelectric Coupling in a BaTiO3-Ni Composite Ferroic Film by Impedance Spectroscopy,” Applied Physics Letters 92, 214101 (2008).
42. L. Qiao and X. F. Bi, “Microstructure and Electrical Properties of the Conductive Pt-LaNiO3 Composite Films Deposited with Co-Sputtering,” Applied Surface Science 255, 3170 (2008).
43. L. Qiao and X. F. Bi, “Microstructure and Ferroelectric Properties of BaTiO3 Films on LaNiO3 Buffer Layers by RF Sputtering,” Journal of Crystal Growth 310, 2780 (2008).
44. L. Qiao and X. F. Bi, “Strain State, Microstructure and Electrical Transport Properties of LaNiO3 Films Grown on Si Substrates,” Journal of Physics D: Applied Physics 41, 195407 (2008).
45. L. Qiao and X. F. Bi, “Crystallographic Texture of MgO and its effect on the growth of BaTiO3 thin films by RF sputtering,” Materials Science Forum 546-549, 2175(2007).
46. X. H Cheng, L. Qiao, X. F. Bi, “Preparation and Microstructure of Highly-Oriented LaNiO3 Thin Films by RF Sputtering Method,” Chinese Journal of Aeronautics 19, S142 (2006).
47. F. S. Lu, L. Qiao, X. F. Bi, “Magnetic and Mechanical Properties of FeSi Alloys with High Si Content,” Transactions of Nonferrous Metals Society of China 16, S81 (2006).