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Betavoltaics using scandium tritide and contact potential difference

Liu, B and Chen, KP and Kherani, NP and Zukotynski, S and Antoniazzi, AB (2008) Betavoltaics using scandium tritide and contact potential difference. Applied Physics Letters, 92 (8). ISSN 0003-6951

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Abstract

Tritium-powered betavoltaic micropower sources using contact potential difference (CPD) are demonstrated. Thermally stable scandium tritide thin films with a surface activity of 15 mCi cm2 were used as the beta particle source. The electrical field created by the work function difference between the ScT film and a platinum or copper electrode was used to separate the beta-generated electrical charge carriers. Open circuit voltages of 0.5 and 0.16 V and short circuit current densities of 2.7 and 5.3 nA cm2 were achieved for gaseous and solid dielectric media-based CPD cells, respectively. © 2008 American Institute of Physics.


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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Liu, B
Chen, KPpec9@pitt.eduPEC90000-0002-4830-0817
Kherani, NP
Zukotynski, S
Antoniazzi, AB
Date: 6 March 2008
Date Type: Publication
Journal or Publication Title: Applied Physics Letters
Volume: 92
Number: 8
DOI or Unique Handle: 10.1063/1.2887879
Schools and Programs: Swanson School of Engineering > Electrical and Computer Engineering
Refereed: Yes
ISSN: 0003-6951
Date Deposited: 09 Jun 2014 15:19
Last Modified: 15 Jan 2021 15:55
URI: http://d-scholarship.pitt.edu/id/eprint/21724

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