Multiple layer thin film solar cells with buried contacts
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 25, 1998
Grant Date -
N/A
app pub date -
Aug 28, 1996
filing date -
Mar 31, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A multilayer solar cell structure includes a stack of alternating p-type and n-type semiconductor layers arranged to form a plurality of rectifying photovoltaic junctions. Low-cost cells are manufactured from low-quality material which is optimized by employing very high doping levels in thin layers. Typically, the doping levels are greater than 10.sup.17 atoms/cm.sup.3, and the thickness of the layers is related to carrier diffusion length in thickness. Contact is made to underlying layers by way of a buried contact structure comprising grooves extending down through all of the active layers, the walls of each groove being doped with n- or p-type impurities depending upon the layers to which the respective contact is to be connected and the grooves being filled or partly filled with metal contact material.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully