Ernest Obetta

Applied electroluminescence (EL) imaging to identify defects in crystalline silicon solar cells and modules, including cracks, shunts, and current collection losses, supporting failure analysis and performance assessment of photovoltaic devices. Used combined electroluminescence (EL) and photoluminescence (PL) imaging to evaluate material quality and recombination behavior, contributing to the analysis of performance-limiting mechanisms in silicon solar cells Translated imaging and measurement data into

Contributed to the YESPV-NIGBEN international photovoltaic (PV) deployment project between Forschungszentrum Jülich and the University of Nigeria, Nsukka, funded by the German Federal Ministry of Education and Research (BMBF) and implemented in collaboration with industrial partners. Key responsibilities and achievements: Coordinated the setup, integration, and commissioning of an electroluminescence (EL) measurement chamber as a diagnostic subsystem within a comprehensive PV characterization framework.

Taught physics with a focus on mechanics, electricity, and energy systems. Developed a strong ability to explain complex technical concepts clearly. Built foundational communication and mentoring skills applicable to scientific and technical environments.

Conducted postgraduate-level physics studies under the Erasmus exchange program at the Department of Physics. Gained exposure to advanced topics in applied physics and strengthened analytical and research skills in an international academic environment.

Research focused on advanced characterization and diagnostics of photovoltaic (PV) devices, with an emphasis on luminescence imaging techniques for solar cell performance analysis. Highlights: Co-developed a novel method for analyzing the Power Collection Efficiency (PCE) of solar cells using Vol