Alp Sehirlioglu

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: 406 White Email: alp.sehirlioglu@case.edu

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, Glennan Fellowship, University Center for Innovation in Teaching and Education
2017, Nord Grant, University Center for Innovation in Teaching and Education
2017, Research Award, Case School of Engineering
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 the control of interfaces in electronic ceramics, particularly oxides. This work spans multiple material forms and applications:
1. Bulk Materials: Ferroelectrics: We concentrate on the manipulation and control of domain walls to optimize material properties. Thermoelectrics: Our research aims to enhance performance through precise interfacial control.
2. Supported Thin Films: Heterostructures: We investigate how heterointerfaces and surfaces can induce novel two-dimensional phenomena or modulate the properties of thin films. This includes work on ionic conductors and battery materials.
3. Free-Standing Thin Films: 2D Nanosheets: By employing top-down chemical exfoliation techniques, we create two-dimensional nanosheets from powders with layered structures. These nanosheets are primarily used to manipulate electronic behavior and for catalytic applications.

In addition to experimental research, we apply data science tools to develop data-driven models, enhancing our understanding and prediction capabilities. A notable project in our lab is the creation of a new data engine for unpublished X-Ray Diffraction Data (CRUX).
For more information about our group and our work, please visit [Electro-Ceramics Research Group](https://engineering.case.edu/research/labs/electro-ceramics).

Teaching Interests

Fall Semester Courses: 1) Mesoscale Structural Control of Functional Materials (EMSE 328/428): This course delves into the mesoscale structures of materials and their effects on electrical properties. We explore structures ranging from the electronic scale to the microstructure, examining how they influence and enable various functions. Students learn to understand the interrelationships between structures at different scales and how to tailor them for specific outcomes. The course integrates fundamental science with practical applications, demonstrating how structural control can modify and enhance material properties. In this class we integrate HoloLens to teach 3D symmetry in 3D. 2) Role of Materials in Energy and Sustainability (EMSE 349/449) This course is divided into two parts; (i) Engineered Materials as Consumers of Resources: We investigate the resource demands (raw materials, energy) associated with materials production, fabrication, and recycling. Topics include global energy usage, the availability of raw materials (including strategic materials), and factors influencing global reserves and annual production. (ii) Engineered Materials in Energy Efficiency and Sustainable Technologies: We explore the role of materials in energy-efficient technologies such as photovoltaics, solar thermal systems, fuel cells, wind turbines, batteries, and capacitors. Additionally, we cover materials used in energy-efficient lighting and discuss the concept of energy return on energy invested. The course emphasizes design strategies and the importance of incorporating environmental impacts into design criteria.
Spring Semester Course: Chemistry of Materials (ENGR 145): A core engineering course, this class focuses on applying fundamental chemistry principles to understand materials. Emphasis is placed on the relationship between bonding, structure, and properties in metals, ceramics, polymers, and electronic materials. Students gain a deep understanding of how to synthesize materials by applying chemistry principles, with a focus on the connections between bonding and material properties.

Patents Received

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., Berger, M., Lambrecht, W., & 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.
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.
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.
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., Pantelides, S., & 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., Wei, P., Sehirlioglu, A., & 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., Gao, X., Berger, P., Fongkaew, I., Lambrecht, W., & 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).
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.
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 .
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.
Faber, K., Asefa, T., Backhaus-Ricoult, M., Brow, R., Chan, J., Dillon, S., Fahrenholtz, W., Finnis, M., Garay, J., García, R., Gogotsi, Y., Haile, S., Halloran, J., Hu, J., Huang, L., Jacobsen, S., Lara-Curzio, E., LeBeau, J., Lee, W., Levi, C., Levin, I., Lewis, J., Lipkin, D., Lu, K., Luo, J., Maria, J., Martin, L., Martin, S., Messing, G., Navrotsky, A., Padture, N., Randall, C., Rohrer, G., Rosenflanz, A., Schaedler, T., Schlom, D., Sehirlioglu, A., Stevenson, A., Tani, T., Tikare, V., Trolier-McKinstry, S., Wang, H., & 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.
Kowalski, B., & Sehirlioglu, A. (2017). High temperature limitation due to onset of depoling in BiScO3–PbTiO3. J. Appl. Phys., 121 , 064106.
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.
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., Voevodin, A., & Eom, C. (2016). Scanning tunneling microscopy of an interfacial two-dimensional electron gas in oxide heterostructures. Physical Review B [10980121], 93 (11).
Zaid, H., Berger, M., Jalabert, D., Walls, M., Akrobetu, R., Fongkaew, I., Lambrecht, W., Goble, N., Gao, X., Berger, P., & Sehirlioglu, A. (2016). Atomic-resolved depth profile of strain and cation intermixing around LaAlO3/SrTiO3 interfaces. Scientific Reports [20452322], 6
Duran, C., Yildiz, A., Dursun, S., Mackey, J., & Sehirlioglu, A. (2016). Thermoelectric Characteristics of Textured KSr2Nb5O15 Ceramics. Scripta Materialia, 112 , 114.
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.
Mackey, J., Dynys, F., & Sehirlioglu, A. (2015). Analytic thermoelectric couple optimization introducing device design factor and fin factor. Appl. Energ. , 134 , 374.
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.
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.
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.