All Publications


  • Evaluation of a Silicon Sr-90 Betavoltaic Power Source SCIENTIFIC REPORTS Dixon, J., Rajan, A., Bohlemann, S., Coso, D., Upadhyaya, A. D., Rohatgi, A., Chu, S., Majumdar, A., Yee, S. 2016; 6

    View details for DOI 10.1038/srep38182

    View details for Web of Science ID 000388995400001

  • Sr Betavoltaic Power Source. Scientific reports Dixon, J., Rajan, A., Bohlemann, S., Coso, D., Upadhyaya, A. D., Rohatgi, A., Chu, S., Majumdar, A., Yee, S. 2016; 6: 38182-?

    Abstract

    Betavoltaic energy converters (i.e., β-batteries) are attractive power sources because of their potential for high energy densities (>200 MWh/kg) and long duration continuous discharge (>1 year). However, conversion efficiencies have been historically low (<3%). High efficiency devices can be achieved by matching β-radiation transport length scales with the device physics length scales. In this work, the efficiency of c-Si devices using high-energy (>1 MeV) electrons emitted from (90)Sr as a power source is investigated. We propose a design for a >10% efficient betavoltaic device, which generates 1 W of power. A Varian Clinac iX is used to simulate the high-energy electrons emitted from (90)Sr, and a high efficiency c-Si photovoltaic cell is used as the converter. The measured conversion efficiency is 16%. This relatively high value is attributed to proper length scale matching and the generation of secondary electrons in c-Si by the primary β-particles.

    View details for DOI 10.1038/srep38182

    View details for PubMedID 27905521

    View details for PubMedCentralID PMC5131278

  • Investigation of hydrogen induced fluorescence in C-60 and its potential use in luminescence down shifting applications NANOSCALE Teprovich, J. A., Washington, A. L., Dixon, J., Ward, P. A., Christian, J. H., Peters, B., Zhou, J., Giri, S., Sharp, D. N., Velten, J. A., Compton, R. N., Jena, P., Zidan, R. 2016; 8 (44): 18760-18770

    View details for DOI 10.1039/c6nr05998h

    View details for Web of Science ID 000387858700023