Radiation-Hard High-Efficiency InP Space Solar Cell Development
Abstract
This quarter was marked by two serious problems which have delayed fabrication and delivery of the cells. The first of these problems, the failure of the front contact metallization, was solved in early November. The second problem, the abnormally low open-circuit voltages and fill factors, was not solved as of the end of the quarter, although promising indications have been seen in the interval between the end of the reporting period and this writing. Despite these problems, we were able to continue work on the emitter structures; advanced thin emitters have been grown without any post-growth thinning step and have demonstrated improved quantum efficiency. Development of the processing sequence has continued as well; details of the back contact formation process have been elucidated in order to give maximum flexibility for the processing of thin cells. (RRH)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1989
- Accession Number
- ADA216857