Group Leader

Sean Shaheen

Sean Shaheen

Associate Professor, ECEE Department • Associate Professor by Courtesy, Department of Physics • Fellow, Renewable and Sustainable Energy Institute (RASEI) • Director, CU ARETe Program

Visiting Faculty

Igor Vasconcelos

Igor Vasconcelos

Associate Professor, Federal University of Ceara
Igor is an Associate Professor at Federal University of Ceara in Fortaleza, Brazil. He has experience with oxide nanoparticles synthesis and characterization using various techniques like x-ray diffraction, Mössbauer, XAFS, Raman and infrared spectroscopies, and electron microscopies. He is currently on sabbatical leave and has joined the group to study cooperative energy pooling upconversion in organic semiconductors and charge carrier dynamics in photovoltaic devices.

Postdoctoral Researchers

Prachi Sharma

Prachi Sharma

Postdoctoral Researcher
RASEI
Prachi received her Ph.D. degree in Electrical Engineering from Rensselaer Polytechnic Institute, NY. Her Ph.D. research was focused on the fabrication and characterization of high responsivity metal-oxide nanomaterials-based photodetectors for smart lighting applications. Before joining CU Boulder, she was with Intel as a process engineer working on photolithography tools. Her current research focuses on simulation and optimization of perovskite-based photovoltaic modules and synthesis and characterization of perovskite and organic thin...

Graduate Students

Alfaifi

Amani Alfaifi

Ph.D. student, Nanoscale Science and Engineering, University of Denver
Amani Alfaifi received her M.S. in Nanoscale Science and Engineering from University of Denver (DU) in 2014. Currently, she is a Ph.D. candidate at DU in Nanoscale Science and Engineering focusing on Perovskite solar cells (PSCs). She works on studying computationally the physical properties of PSCs using CP2K and Quantum Espresso under the supervision of Prof. Davor Balzar. She joined Prof. Shaheen's group in 2018 to study perovskite solar cell...
Joshua Brown

Joshua Brown

Ph.D. student, ECEE Department
Joshua Brown is a graduate student in the ECEE department. He carries of Monte Carlo simulations of charge carrier transport in disordered systems, examining the role of site energy correlations on the dynamics of carrier movement. To learn more about Joshua, see the story of his path to engineering .
Sean Dunfield

Sean Dunfield

Ph.D. student, Materials Science and Engineering
Sean Dunfield graduated from Syracuse University with a B.S. in Physics and a B.A. in Applied Mathematics. Following research in the group of Prof. Eric Schiff at Syracuse University, he became passionate about photovoltaics. His research focusses on perovskite solar cell interfaces and is carried out at the National Renewable Energy Laboratory under the mentorship of Dr. Joseph Berry .
Vesta Zhelyaskova

Vesta Zhelyaskova

Ph.D. student, Physics
Vesta Zhelyaskova is a Ph.D. student in the ECEE department, having received her B.S. in physics from the University of Florida. She studies the growth and chemical doping of organic thin films for superconductivity and related phenomena, as part of multi-PI effort funded by the Keck Foundation.

Lab Manager

Cody Sharp

Cody Sharp

B.S. Physics 2018 • Lab Manager
Cody Sharp has recently become interested in working with organic semiconductors and perovskite solar cells and is working with Prof. Vasconcelos on time resolved spectroscopic measurements. He plans to continue his education at CU Boulder in the Material Science and Engineering M.S. Program.

Undergraduate Students

Riley Hadjis

Riley Hadjis

B.S. student, Electrical and Computer Engineering
Riley works with Joshua Brown on computational simulations of charge transport in organic semiconductors.
Jake Perez

Jake Perez

B.S./M.S. student, Electrical Engineering
Jake works on computational simulations of perovskite photovoltaic modules, with the goal of optimizing the circuit layout of the module for power efficiency and resilience.
Stark image

Michael Stark

B.S.student, Physics
Michael is sophomore studying physics with a passion for physical chemistry and innovations in renewable energy production. He works under the guidance of Cody Sharp on photonic upconversion research.
Jiselle Ye

Jiselle Ye

B.S. student, Electrical Engineering
Jiselle works on computational simulations of perovskite photovoltaic modules, with the goal of optimizing the circuit layout of the module for power efficiency and resilience. She is working on a Python implementation of the necessary code.

Former Group Members