Prometheus Project

Production Method Of Electrical Energy by Enhanced Thermal Electron Emission by the Use of Superior Semiconductors

Work Programme

Research activities have been structured according to the following work packages:

WP1-Management: The management of the overall project includes assessment of progress and results, continuous performance monitoring and fulfillment of EC contractual requirements.

WP2-Dissemination and Exploitation: aims to deal with promoting scientific and industrial uptake and evaluating possible exploitation of the developed technology. Respective website, blog and newsletter will be created and launched, which will be active over the end of the project.

WP3-Simulator of Converter Operation: aims to develop models representing physical properties of conversion module active components, use of developed models as a prompt feedback tool to optimize and guide the device design to analyse conversion efficiency over a broad range of operating conditions.  

WP4-Development of Novel lV Semiconductor Cathode: has a main objective to define proper substrate(s) for deposition of semiconductor emitter and fabricate appropriate innovative lV semiconductors on the basis of simulation results: defects concentration will be engineered to enhance and optimise absorbance properties and electrons mean free path; electron affinity and work function will be conceived to fit optimal electrons emission.

WP5-Development of lll-V and Heterojunction Semiconductor Cathode: aims to define proper substrate(s) for deposition of semiconductor emitter; fabricate appropriate lll-V semiconductors and heterojunction structures based on simulation results and performs characterization activity similar to WP4. A specific activity will deal with the development of heterogeneous junctions for enhancing electron emission by the establishment of cathode built-in internal fields.

WP6-Active Materials & Cathode Characterization:will be focused on characterization of optical and electronic properties of all engineered semiconductors along with characterization of  photo-enhanced and thermal emission properties; and the results are compared with simulation activities to regulate the optimum conditions for cathode operations.

WP7-Tailoring of surface Properties: will employ techniques for texturing surfaces and depositing films on semiconductors developed in WP5 & WP6 to improve material functionality.

WP8-Anode & Inter-electrode Space Development:is focused on definition, production and characterization of proper materials for anode stage in terms of suitable work function and thermal stability. A dedicated electron-beam evaporator will be developed for depositing thermal insulating materials to establish the inter-electrode space according to a patterned specific geometry.

WP9- Assembly, Testing and Qualification of the “Proof of Concept” converter: aims to be the “Proof of Concept” for PROMETHEUS, project activities developed so far will be integrated in WP9, including the design and fabrication of vacuum enclosure. It includes the testing of conversion efficiency in terms of radiation intensity (in solar simulator and solar furnace) and thermal cycles to evaluate operating durability and efficiency.

WP9 is also focused on reliability validation of the proposed device through integrative assessment and experimental performance, design and simulation of secondary thermo-electrical engine and feasibility and analysis of the conversion process.

WP Leaders