Welcome to the Defect
Spectroscopy Research Group!

In our lab, we dedicate our research efforts to advancing the frontiers of semiconductor materials science for renewable energy applications through the investigation of defects and impurities using cutting-edge spectroscopic techniques.

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Our Research

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Highly-Sensitive Defect Spectroscopy

We utilize Surface PhotoVoltage (SPV) and near-UV photoelectron Spectroscopy in order to map the energetic positions of gap states in semiconductors with extremely high sensitivity


Photo-induced Charge transfer across interfaces

We utilize a combination of time-resolved Surface PhotoVoltage and photoluminescence in order to probe charge transfer processes across interfaces and eliminate non-radiative losses. We then simulate and correlate our findings to actual optoelectronic device data

About Our Lab

Our interdisciplinary team of researchers strives to unravel the physical properties of defects in novel semiconductors, shedding light on the energetic distribution of defect states within the forbidden gap, as well as their origins and “healing” for future potential applications such as solar cells, light emitting diodes, thin film transistors and more.

Our Research Collaborations

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