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Yusuf Keleştemur
Assist. Prof. 
Room No: E-213
Tel: +90 (312) 210-5911
Fax: +90 (312) 210-2518

  • Post-Doc.: ETH Zurich, Switzerland (2017-2020)
  • Ph.D. Bilkent University, Turkey (2017)
  • M.S. Bilkent University, Turkey (2012)
  • B.S. Middle East Technical University, Turkey (2010)
Research Interests:
  • Colloidal Synthesis of Semiconductor Nanocrystals
  • Assembly and Surface Chemistry of Semiconductor Nanocrystals
  • Optoelectronic Applications with Semiconductor Nanocrystals
  • Nanomaterials
  • Y. Kelestemur, Y. Shynkarenko, M. Anni, S. Yakunin, M. L. De Giorgi, M. V. Kovalenko, Colloidal CdSe Quantum Wells with Graded Shell Composition for Low-Threshold Amplified Spontaneous Emission and Highly Efficient Electroluminescence, ACS Nano, 13, 13899, 2019.
  • Y. Kelestemur, D. Dede, K. Gungor, C. F. Usanmaz, O. Erdem, and H. V. Demir, Alloyed heterostructures of CdSexS1-x nanoplatelets with highly tunable optical gain performance, Chemistry of Materials, 29, 4857, 2017.
  • Y. Kelestemur, B. Guzelturk, O. Erdem, M. Olutas, T. Erdem, C. F. Usanmaz, K. Gungor, and H. V. Demir, CdSe/CdSe1-xTex core/crown heteronanoplatelets: tuning the excitonic properties without changing the thickness, Journal of Physical Chemistry C, 121, 4650, 2017.
  • Y. Kelestemur, B. Guzelturk, O. Erdem, M. Olutas, K. Gungor, and H. V. Demir, Platelet-in-box colloidal quantum wells: CdSe/CdS@CdS core/crown@shell heteronanoplatelets, Advanced Functional Materials, 26, 3570, 2016.
  • B. Guzelturk, Y. Kelestemur, K. Gungor, A. Yeltik, M. Z. Akgul, Y. Wang, R. Chen, C. Dang, H. Sun, and H. V. Demir, Stable and low threshold optical gain in CdSe/CdS quantum dots: all-colloidal frequency up-converted laser, Advanced Materials, 27, 2741, 2015.
  • Y. Kelestemur,* M. Olutas,* S. Delikanli, B. Guzelturk, M. Z. Akgul, and H. V. Demir, Type-II colloidal quantum wells: CdSe/CdTe core/crown heteronanoplatelets, Journal of Physical Chemistry C, 119, 2177, 2015. (*equal contribution)
  • B. Guzelturk,* Y. Kelestemur,* M. Olutas, S. Delikanli, and H. V. Demir, Amplified spontaneous emission and lasing in colloidal nanoplatelets, ACS Nano, 8, 6599, 2014. (*equal contribution)
  • Y. Kelestemur,* A. F. Cihan,* B. Guzelturk, and H. V. Demir, Type-tunable amplified spontaneous emission from core-seeded CdSe/CdS nanorods controlled by exciton-exciton interaction, Nanoscale, 6, 8509, 2014. (*equal contribution)
  • A. F. Cihan,* Y. Kelestemur,* B. Guzelturk, O. Yerli, U. Kurum, H. G. Yaglioglu, A. Elmali, and H. V. Demir, Attractive versus repulsive excitonic interactions of colloidal quantum dots control blue- to red-shifting (and nonshifting) amplified spontaneous emission, Journal of Physical Chemistry Letters, 4, 4146, 2013. (*equal contribution)

Last Updated:
23/02/2021 - 14:32