Accession Number : AD1042229


Title :   Gallium Nitride Direct Energy Conversion Betavoltaic Modeling and Optimization


Descriptive Note : Conference Paper


Corporate Author : Army Research Laboratory Adelphi United States


Personal Author(s) : Ray,William II B ; Litz,Marc S ; Russo,Johnny Jr A ; Bayne,Stephen B


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1042229.pdf


Report Date : 01 Mar 2017


Pagination or Media Count : 4


Abstract : This paper analyzes the use of a wide-bandgap betavoltaic towards use as a long lasting low power battery for various applications. The paper establishes a model for gallium nitride betavoltaics through use of experimentation and software tools. Software tools include Silvaco ATLAS and MCNPX, a simulation model is formed and analyzed to identify the parameters that create the most impact on optimization. Optimization can only occur through a verified model. The depletion region provides the most discernible effect towards device efficiency. Design approaches that best match the beta range to the limits of gallium nitride device characteristics are discussed.


Descriptors :   gallium nitrides , compound semiconductors , energy conversion , pulsed power , power electronics , electron energy , solar cells , electron beams , fabrication , charge carriers , optimization , simulations , semiconductor devices , electric power , radiation


Subject Categories : Electrochemical Energy Storage
      Electrical and Electronic Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE