Behrang Hamadani Email Address

Project Leader

NIST promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life.

My research at NIST is focused on electronic and electro-optical measurements and characterization of photovoltaic solar cells and modules. My particular areas of interest include temperature dependent current-voltage and spectral responsivity measurements, charge carrier transport phenomena through techniques such as impedance/photocurrent spectroscopy, luminescence-based imaging, and minority carrier lifetime measurements on both crystalline and thin-film photovoltaic materials. The ultimate objective of this research is to accurately predict device performance under any reporting conditions and also to understand the physical mechanisms that hinder achievement of high efficiency cells and a reliable performance in the field. Furthermore, I have significant prior experience in nanoscale characterization of materials and devices using techniques of scanning probe microscopy. I have also performed many years of research on charge transport and electronic properties of organic devices, such as thin film transistors. Specialties: electrical characterization techniques of devices, including solar cells, transistors and memristers. optoelectronic measurements, scanning probe microscopy, device fabrication, low temperature measurements, electro- and photoluminescence imaging