| Patent Number |
Title Of Patent |
Date Issued |
| 4477688 |
Photovoltaic cells employing zinc phosphide |
October 16, 1984 |
| A photovoltaic cell having a zinc phosphide absorber. The zinc phosphide can be a single or multiple crystal slice or a thin polycrystalline film. The cell can be a Schottky barrier, heterojunction or homojunction device. Methods for synthesizing and crystallizing zinc phosphide are disc |
| 4387265 |
Tandem junction amorphous semiconductor photovoltaic cell |
June 7, 1983 |
| A photovoltaic stack comprising at least two p.sup.+ i n.sup.+ cells in optical series, said cells separated by a transparent ohmic contact layer(s), provides a long optical path for the absorption of photons while preserving the advantageous field-enhanced minority carrier collection |
| 4377723 |
High efficiency thin-film multiple-gap photovoltaic device |
March 22, 1983 |
| A photovoltaic device includes at least two solar cells made from Group IV elements or their alloys in the amorphous state mounted on a substrate. The outermost or first cell has a larger bandgap than the second cell. Various techniques are utilized to improve the efficiency of the devic |
| 4253882 |
Multiple gap photovoltaic device |
March 3, 1981 |
| A multiple gap photovoltaic device having a transparent electrical contact adjacent a first cell which in turn is adjacent a second cell on an opaque electrical contact, includes utilizing an amorphous semiconductor as the first cell and a crystalline semiconductor as the second cell. |
| 4251287 |
Amorphous semiconductor solar cell |
February 17, 1981 |
| A solar cell comprising a back electrical contact, amorphous silicon semiconductor base and junction layers and a top electrical contact includes in its manufacture the step of heat treating the physical junction between the base layer and junction layer to diffuse the dopant species |
