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Kenan Gundogdu

Associate Professor

NC State University, Department of Physics
851 Main Campus Dr., Raleigh NC 27606.

About

Professor Gundogdu received his PhD in 2004 from the University of Iowa. Then he continued his postdoctoral studies at the University of Iowa between 2004-06 and at the Massachusetts Institute of Technology between 2006-08. He recently joined the physics faculty at North Carolina State University.

During his PhD work, he used ultrafast spectroscopic techniques to study electron and hole spin dynamics in quantum dots and narrow band gap semiconductor heterostructures with the motivation of developing spin based electronic devices. In his postdoctoral studies, he developed novel spatio-temporal pulse shaping methods for IR and optical 2D Fourier transform spectroscopy, the optical analogue of multi-dimensional NMR experiments. He performed these experiments to study electron dynamics in condensed matter systems and vibrational dynamics in biomolecules and hydrogen bonding complexes.

Research interests

Prof. Gundogdu’s research at NC State involves developing novel ultrafast spectroscopic methods to address problems in condensed matter physics and nanoscience. His program especially focuses on the investigation and characterization of coherent and incoherent exciton dynamics that play a critical role in determining the energy conversion efficiency in photovoltaic devices. His ultimate goal is to provide clear understanding of photon absorption, exciton transport, and charge separation dynamics in novel nanostructures to help engineering high efficiency solar energy conversion devices.

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Select Publications | Complete List Of Publications

Z. Zheng, O.M Awartani, B. Gautam, D. Liu, Y. Qin, W. Li, A. Bataller, K. Gundogdu, H. Ade, J. Hou, Efficient Charge Transfer and Fine‐Tuned Energy Level Alignment in a THF‐Processed Fullerene‐Free Organic Solar Cell with 11.3% Efficiency, Adv. Mater29,  1604241  (2017). link

R. Younts, H.S. Duan, B. Gautam, B. Saparov, J. Liu, C. Mongin, F.N. Castellano, D.B. Mitzi, K. Gundogdu, Efficient Generation of Long-Lived Triplet Excitons in 2D Hybrid Perovskite, Adv. Mater. 29,  1604278  (2017). link

Y. Yu, Y. Yu, C. Xu, A. Barrette, K. Gundogdu, L. Cao, Fundamental limits of exciton-exciton annihilation for light emission in transition metal dichalcogenide monolayers, Physical Review B,   93,  201111  (2016). link

H. Cheema, R. Younts, L. Ogbose, B. Gautam, K. Gundogdu, A. El-Shafei, A femtosecond study of the anomaly in electron injection for dye-sensitized solar cells: the influence of isomerization employing Ru (II) sensitizers with anthracene and phenanthrene ancillary ligands, Phys. Chem. Chem. Phys. 17,  2750-2756  (2015). link

C. Mai, Y. G. Semenov, A. Barrette, Y. Yu, Z. Jin, L. Cao, K. W. Kim, K. Gundogdu, Exciton valley relaxation in a single layer of WS 2 measured by ultrafast spectroscopy, Phys. Rev. B 90,  041414  (2014). link

C. Mai, A. Barrette, Y. Yu, Y. G. Semenov, K. W. Kim, L. Cao, K. Gundogdu, Many-body effects in valleytronics: Direct measurement of valley lifetimes in single-layer MoS2, Nano letters 14,  202  (2013). link

Daniel B. Turner, Katherine W. Stone, Kenan Gundogdu,  Keith A. Nelson, Thecoherent optical laser beam recombination technique (COLBERT) spectrometer: Coherent multidimensional spectroscopy made easier, Rev. Sci. Instrum. 82, 081301 (2011) (cover- invited article). link

Bilal Gokce, Eric J. Adles, David E. Aspnes, Kenan Gundogdu, Measurement and control of in-plane surface chemistry during the oxidation of H-Terminated (111) Si, PNAS 107, 17503 (2010). link

Stone KW, Gundogdu K, Turner DB, et al., Two-Quantum 2D FT Electronic Spectroscopy of Biexcitons in GaAs Quantum Wells, Science 324,  1169-1173  (2009). link

Zimmermann J, Gundogdu K, Cremeens ME, et al., Efforts toward Developing Probes of Protein Dynamics: Vibrational Dephasing and Relaxation of Carbon-Deuterium Stretching Modes in Deuterated Leucine, J. Phys. Chem. B   113,  7991 (2009). link

Gundogdu K, Stone KW, Turner DB, et al., Multidimensional coherent spectroscopy made easy, Chem. Phys. 341,  89-94  (2007). link

Gundogdu K, Nydegger MW, Bandaria JN, et al., Vibrational relaxation of C-D stretching vibrations in CDCl3, CDBr3, and CDl(3), J. Chem. Phys. 125, 174503  (2006 ). link

Gundogdu K, Hall KC, Koerperick EJ, et al., Electron and hole spin dynamics in semiconductor quantum dots, App.d Phys. Lett. 86, 113111 (2005). link

Gundogdu K, Hall KC, Boggess TF, et al., Ultrafast electron capture into p-modulation-doped quantum dots, App.d Phys. Lett. 85, 4570 (2004). link

Honors & Awards

  • Office of Naval Research Young Investigator Award