Advanced Thermal Conversion Systems
Abstract:
This project evaluated the scientific and technical feasibility of a solar energy converter based on photon enhanced thermionic emission PETE, which enhances thermionic emission with light. In order to achieve this goal, we focused the work on two objectives 1 demonstrating that a structurally stable solar-enhanced converters can be created using microfabrication techniques and 2 Identifying materials that could function primarily as PETE emitters rather than just thermionic materials. The first objective addressed the challenges of achieving sufficient thermal isolation, structural stability, and optimal cathode-anode separation. The second objective addressed the challenges of discovering the materials that can efficiently absorb sunlight and transform the absorbed photon energy and heat into high-energy electrons that lie at the heart of a PETE converter.