Profile Photo

Alp Sehirlioglu

Associate Professor, Materials Science and Engineering
Develops new materials through exploitation of interfaces to control functionality and exploration of multi-functionality for energy-related applications
Office: 302 White

Education

Ph.D., Materials Science and Engineering, University of Illinois at Urbana Champaign, 2005
M.S., Ceramic Engineering, Alfred University, 2000
B.S., Materials Science and Metallurgical Engineering, Middle East Technical University, 1997

Awards and Recognitions

2018, NSF CAREER Award, NSF
2017, Nord Grant, University Center for Innovation in Teaching and Education
2017, Research Award, Case School of Engineering
2017, Glennan Fellowship, University Center for Innovation in Teaching and Education
2016, Young Alumnus Award, University of Illinois at Urbana Champaign
2015, Elected Senior Member, IEEE
2012, Special Team Achievement Award: Thermoelectrics Team, NASA
2011, Special Team Achievement Award: PPU Capacitor Failure Investigation Team, NASA
2011, Young Investigator Program Award, AFOSR
2009, Charles F. Lucks Award, ITCC

Research Interests

My research focuses on processing-structure-property relationships in electronic ceramics. There are two foci to my work: (1) Energy conversion and storage materials and (2) 2D behavior. All of my research topics are united under the creation and control of interfaces and elucidating their effects on the electrical and thermal properties of materials. The first focus includes research on high temperature piezoelectrics, high temperature thermoelectrics and solid-state batteries with an objective to achieve structural batteries. The second focus examines oxide based heterointerfaces and 2D oxides. I already have established research on piezoelectrics, thermoelectrics and oxide based heterointerfaces and I was able build facilities with broad range of capabilities. Currently my focus has been to establish research topics under solid state batteries and 2D oxides. These topics are designed in a way that they naturally align with each other. For example, moving forward the type of oxide hetero interfaces I will be processing include electrolyte films, and the 2D materials which I will be exfoliating include cathode materials in Li-ion batteries overlapping with my interest in solid state batteries. The ability to process both heterointerfaces which are supported 2D nano-sheets and exfoliated free-standing 2D nano-sheets will allow investigation of fundamental effects of interfacial and surface characteristics on variation in properties, their applicability and functionalization.

Teaching Interests

I have been teaching three distinct classes, two of which I started from scratch (EMSE 328/428 and EMSE 405). The third one is a laboratory class (EMSE 330) with two sections. The experiments we cover in the laboratory class include the heat treatment of steels, precipitation hardening in Al-alloys and the mechanical properties of glass. EMSE 405 is a graduate course I teach which covers thermodynamic relationships between properties in the presence of electric work, the critical boundary conditions for characterization, how bonding and quantum mechanical treatment of electron motion lead to band gaps,<br>the anisotropy of properties ranging from 1st to 4th rank, how microscopic and macroscopic properties are<br>related in dielectric materials and how they affect the behavior as a function of frequency including relaxation mechanisms and impedance spectroscopy, effects of point defects including Kroger Vink Diagrams and the piezoelectric/ferroelectric/electrostrictive materials. EMSE 328/428 uses different applications which introduce a fundamental understanding of structure-property relationships in a range of scales including electronic-, ionic-, crystallographic-, domain- and micro-structure. The applications covered include rectifiers, transistors, light emitting diodes, solid oxide fuel cells, capacitors, actuators, pressure sensors, thermal cameras, PTCRs, and varistors. Also covered are the fundamentals of sintering and colloidal science. In the near future, I am working on introducing the HoloLens into my classroom.

Patents Received

2013, "High Temperature Piezoelectric Ceramics," 8,518,291 B2, Alp Sehirlioglu, Frederick Dynys.

Publications

Abbasi, K., Smith, H., Hoffman, M., Farghadany, E., Bruckman, L., & Sehirlioglu, A. (2021). Dimensional Stacking for Machine Learning in ToF-SIMS Analysis of Heterostructures. ADVANCED MATERIALS INTERFACES, 8 (3).
Crowley, K., Pachuta, K., Radha, S., Volkova, H., Sehirlioglu, A., Pentzer, E., ... Gao, X. (2020). Electrical Characterization and Charge Transport in Chemically Exfoliated 2D Li x CoO 2 Nanoflakes. Journal of Physical Chemistry C, 124 (38), 20693-20700.
Williams, R., Bagues, N., Farghadany, E., Sehirlioglu, A., & McComb, D. (2020). Characterization of Nano-Scale Defects in Pulsed Laser Deposited (PLD) Thin Films of Li 3x Nd (2/3-x)(1/3-2x) TiO3 (NLTO) by Aberration Corrected HR-STEM Imaging and Dual-EELS. Microscopy and Microanalysis, 26 (S2), 3166-3167.
Huddleston, W., Dynys, F., & Sehirlioglu, A. (2020). Nickel percolation and coarsening in sintered Li 4 Ti 5 O 12 anode composite. Journal of the American Ceramic Society, 103 (8), 4178-4188.
Collins, L., Vasudevan, R., & Sehirlioglu, A. (2020). Visualizing Charge Transport and Nanoscale Electrochemistry by Hyperspectral Kelvin Probe Force Microscopy. ACS Applied Materials & Interfaces, 12 (29), 33361-33369.
Huddleston, W., Dynys, F., & Sehirlioglu, A. (2020). Effects of microstructure on fracture strength and conductivity of sintered NMC333. Journal of the American Ceramic Society, 103 (3), 1527-1535.
Pachuta, K., Pentzer, E., & Sehirlioglu, A. (2020). Evaluating the chemical exfoliation of lithium cobalt oxide using UV-Vis spectroscopy. Nanoscale Advances, 2 (11), 5362-5374.
Hudak, B., Sun, W., Mackey, J., Ullah, A., Sehirlioglu, A., Dynys, F., ... Guiton, B. (2019). Observation of Square-Planar Distortion in Lanthanide-Doped Skutterudite Crystals. Journal of Physical Chemistry C, 123 (23), 14632-14638.
Edgehouse, K., Escamilla, M., Wang, L., Dent, R., Pachuta, K., Kendall, L., ... Pentzer, E. (2019). Stabilization of oil-in-water emulsions with graphene oxide and cobalt oxide nanosheets and preparation of armored polymer particles. Journal of Colloid and Interface Science, 541 (), 269-278.
Pachuta, K., Pentzer, E., & Sehirlioglu, A. (2019). Cation Deficiency Associated with the Chemical Exfoliation of Lithium Cobalt Oxide. Journal of the American Ceramic Society, ().
Balachandran, P., Kowalski, B., Sehirlioglu, A., & Lookman, T. (2018). Experimental search for high-temperature ferroelectric perovskites guided by two-step machine learning. Nature Communications, 9 (1).
Jalabert, D., Zaid, H., Berger, M., Fongkaew, I., Lambrecht, W., & Sehirlioglu, A. (2018). Ion blocking dip shape analysis around a LaAlO 3 /SrTiO 3 interface. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 423 (), 67-71.
Zaid, H., Berger, M., Jalabert, D., Walls, M., Akrobetu, R., Goble, N., ... Sehirlioglu, A. (2018). Role of the different defects, their population and distribution in the LaAlO 3 /SrTiO 3 heterostructure's behavior. Journal of Applied Physics, 123 (15).
Goble, N., Akrobetu, R., Zaid, H., Sucharitakul, S., Berger, M., Sehirlioglu, A., ... Gao, X. (2017). Anisotropic electrical resistance in mesoscopic LaAlO3/SrTiO3 devices with individual domain walls. Scientific Reports, 7 (), 44361.
Fongkaew, I., Akrobetu, R., Sehirlioglu, A., Voevodin, A., Limpijumnong, S., & Lambrecht, W. (2017). Core-level binding energy shifts as a tool to study surface processes on LaAlO 3 /SrTiO 3. Journal of Electron Spectroscopy and Related Phenomena, 218 (), 21-29.
Kowalski, B., & Sehirlioglu, A. (2017). High temperature limitation due to onset of depoling in BiScO 3 –PbTiO 3. Journal of Applied Physics, 121 (6), 064106.
Faber, K., Asefa, T., Backhaus-Ricoult, M., Brow, R., Chan, J., Dillon, S., ... Yildiz, B. (2017). The role of ceramic and glass science research in meeting societal challenges: Report from an NSF-sponsored workshop. Journal of the American Ceramic Society, ().
Goble, N., Akrobetu, R., Zaid, H., Sucharitakul, S., Berger, M., Sehirlioglu, A., ... Gao, X. (2017). Anisotropic electrical resistance in mesoscopic LaAlO3/SrTiO3 devices with individual domain walls. Scientific Reports, 7 (), 44361 .
Kowalski, B., & Sehirlioglu, A. (2017). High temperature limitation due to onset of depoling in BiScO3–PbTiO3. J. Appl. Phys., 121 (), 064106.
Kowalski, B., Sayir, A., & Sehirlioglu, A. (2016). Aliovalent MnTi and GaTi substitution in high temperature piezoelectric (x)Bi(Zn0.5Zr0.5)O3 – (y)BiScO3 – (100-x-y)PbTiO3,. J. Mater. Sci., 51 (14), 6761.
Zaid, H., Berger, M., Jalabert, D., Walls, M., Akrobetu, R., Fongkaew, I., ... Sehirlioglu, A. (2016). Atomic-resolved depth profile of strain and cation intermixing around LaAlO3/SrTiO3 interfaces. Scientific Reports [20452322], 6 ().
Mackey, J., Dynys, F., Hudak, B., Guiton, B., & Sehirlioglu, A. (2016). CoxNi4−xSb12−ySny skutterudites: processing and thermoelectric properties. J. Mater. Sci., 51 (13), 6117.
Altfeder, I., Lee, H., Hu, J., Naguy, R., Sehirlioglu, A., Reed, A., ... Eom, C. (2016). Scanning tunneling microscopy of an interfacial two-dimensional electron gas in oxide heterostructures. Physical Review B [10980121], 93 (11).
Duran, C., Yildiz, A., Dursun, S., Mackey, J., & Sehirlioglu, A. (2016). Thermoelectric Characteristics of Textured KSr2Nb5O15 Ceramics. Scripta Materialia, 112 (), 114.
Mackey, J., Dynys, F., & Sehirlioglu, A. (2015). Analytic thermoelectric couple optimization introducing device design factor and fin factor. Appl. Energ. , 134 (), 374.
McGrail, B., Sehirlioglu, A., & Pentzer, E. (2015). Polymer Composites for Thermoelectric Applications. Angew. Chem. Int. Ed. , 54 (6), 1710.
Mackey, J., Dynys, F., & Sehirlioglu, A. (2015). Si/Ge-WSi2 composites: Processing and thermoelectric properties. ACTA MATERIALIA, 98 (), 263-274.
Ghoniem, N., Sehirlioglu, A., Neff, A., Allain, J., Williams, B., & Sharghi-Moshtaghin, R. (2015). Sputtering of molybdenum and tungsten nano rods and nodules irradiated with 150 eV argon ions. APPLIED SURFACE SCIENCE, 331 (), 299-308.
Mackey, J., Dynys, F., & Sehirlioglu, A. (2014). Uncertainty analysis for common Seebeck and electrical resistivity measurement systems. Rev. Sci. Inst. , 85 (08), 085119.
Kowalski, B., & Sehirlioglu, A. (2014). Characterization of the High-Temperature Ferroelectric (100−x−y)BiScO3–(x)Bi(Zr0.5Zn0.5)O3–(y)PbTiO3 Perovskite Ternary Solid Solution. J. Amer. Ceram. Soc., 97 (2), 490.
Dynys, F., Sayir, A., Mackey, J., & Sehirlioglu, A. (2014). Thermoelectric Properties of WSi2 – SixGe(1-x) Composites. . Alloys and Compounds , 604 (), 196.