Single and Multiple Burst Neutron Irradiation Test of Lithium Doped Silicon Solar Cells.
Abstract
Approximately 90 high efficiency (9.5% - 12%) lithium doped silicon solar cells were exposed to neutron fluence levels between 1.65 x 10 to the 11th power to 2.14 x 10 to the 13th power n/sq. cm (1 Mev equivalent) at the White Sands Missile Range Fast Burst Reactor. Pre- and post-exposure measurements were taken to determine the amount of degradation due to neutron exposure and the rate and extent to which the damage annealed. Half of the cells exposed to neutrons were fabricated from a Lopex silicon starting material; the remainder were fabricated from crucible grown silicon. The Lopex cells generally annealed to within 80% of pre-exposure power output after a week at room temperature. Crucible grown cells exposed to the highest neutron fluence levels generally annealed to within less than 80% of initial values. This report documents the test procedures and results of the experiment. Extensive data taken on the cells is on file and may be made available for detailed comparison and future needs. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1972
- Accession Number
- AD0906476
Entities
People
- Albert E. Wallis
- John S. Zawila
- Paul A. Zielie
Organizations
- Air Force Research Laboratory