Solar Cell Neutron Damage Investigation.
Abstract
Multi-layer silicon solar cells offer the possibility of nuclear radiation resistance greater than that of conventional state-of-art single junction silicon solar cells. Epitaxially-fabricated specimens were prepared and studied for their performance under fast neutron irradiation. Several multilayer specimens plus conventional state-of-art N/P specimens were exposed to near-fission spectrum neutrons. The air mass zero power conversion characteristics were evaluated during interruptions in the bombardment. Efficiencies of pre-prototype uncoated specimens were as high as 6%, and monotonically decreased with increases in fluence. Similar degradation was observed in the short-circuit current of the specimens. The efficiencies and short circuit currents at all fluence values were less than expected on the basis of computer modeling studies. At the present time, the premature degradation is attributed to artifacts in the developmental cells. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1970
- Accession Number
- AD0869460
Entities
People
- John M. Hicks