We analyzed the feasibility of CVD diamond to operate as the main component in active devices for conversion of high-energy radiation into electrical power. A self-sustained radiation dosimeter based on the electron emission effect was designed and tested under low-energy X-ray beam (Mg X-ray tube). The device operative conditions (absence of applied bias voltage) represented also the first experimental test towards the development of diamond energy conversion systems. On this basis, we designed a CVD diamond vacuum radiation energy converter and analyzed it using electron beams. An analysis of the performance was obtained letting both electron flux I0and kinetic energy E0to vary. For E0= 1 keV the power exploited by a load was estimated as tenths of nW and the total conversion efficiency was between 0.2 and 0.4%. This performance makes the device nominally competitive if compared to other similar solid-state converters. A discussion about the device design and possible improvements was performed in order to rationalize the conditions able to maximize the energy conversion efficiency. © 2006 Elsevier B.V. All rights reserved.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Mechanical Engineering
- Physics and Astronomy(all)
- Materials Chemistry
- Electrical and Electronic Engineering
Trucchi, D. M., Cappelli, E., Lisi, N., & Ascarelli, P. (2006). Feasibility of CVD diamond radiation energy conversion devices. Diamond and Related Materials, 15(11-12 SPEC. ISS.), 1980 - 1985. https://doi.org/10.1016/j.diamond.2006.08.012