Solar cell
US5437734A · kind A · utility
20Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1994 |
| Grant date | Aug 1, 1995 |
| Priority date | — |
| Expiry date | Feb 8, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
Abstract
Disclosed herein is a solar cell which is composed basically of a first semiconductor layer of first conductivity type, a second semiconductor layer of second conductivity type, and a third semiconductor layer formed between them. The third semiconductor layer has a band gap narrower than that of the first and second semiconductor layers. The third semiconductor layer also has a pn junction therein. The semiconductor layers are each separated by a buffer layer in which the composition changes gradually across the thickness so that the lattice mismatch between the semiconductor layers is relieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.