Joshua Koubek

Visiting Assistant Teaching Professor, Department of Chemistry

Dr. Joshua T. Koubek is currently a Visiting Assistant Teaching Professor in the Department of Chemistry at Colorado School of Mines. His research interests include organic and hybrid semiconductors for applications in lighting (organic light emitting diodes) and nuclear radiation detection (scintillators); as well as 2-D covalent organic frameworks for applications in gas storage and catalysis. Currently, Dr. Koubek is devoting his time for his passion in chemical education. He is utilizing his previous industry and academic experiences to develop new pathways for students to understand and apply proper chemistry and laboratory principals in their future careers. Outside of the university, Dr. Koubek enjoys playing the trombone, going to the ballet, and exploring the Colorado wilderness.

311 Coolbaugh Hall


  • BS – The College of New Jersey
  • PhD – Colorado School of Mines


  • T. Koubek, J. Bingham, S. Vyas, A. Sellinger; “Design and Synthesis of Silsesquioxane- and Cyclophosphazene-Based Thermally Activated Delayed Fluorescence Emitters.” Under Review. 2021
  • A. Braunecker, S. Shulda, M. B. Martinez, K. E. Hurst, J. T. Koubek, S. Zaccarine, R. E. Mow, S. Pylypenko, A. Sellinger, T. Gennett, J. C. Johnson; “Thermal Activation of a Copper-Loaded Covalent Organic Framework for Near-Ambient Temperature Hydrogen Storage and Delivery.” ACS Materials Lett., 2020, 2(3), 227-232
  • Mahl, H. A. Yemam, R. Fernando, J. T. Koubek, A. Sellinger, U. Greife; “10B enriched plastic scintillators for application in thermal neutron detection.” Nuclear Inst. and Methods in Physics Research, A., 2018, 880, 1–5
  • W. McNichols, J. T. Koubek, A. Sellinger; “Single-step synthesis of styryl phosphonic acids via palladium-catalyzed Heck coupling of vinyl phosphonic acid with aryl halides.” Chem. Commun., 2017, 53, 12454–12456
  • H. A. Yemam, A. Mahl, J. S. Tinkham, J. T. Koubek, U. Greife, A. Sellinger; “Highly Soluble p-Terphenyl and Fluorene Derivatives as Efficient Dopants in Plastic Scintillators for Sensitive Nuclear Material Detection.” Chem. Eur. J. 2017, 23, 8921.