Abstract
A spectral-splitting, triple-junction a-Si alloy solar cell processor has been designed, built and optimized. A roll-to-roll process has been used to deposit two layers of back reflector, a triple-cell structure with nine layers of a-Si and a-SiGe alloys and a single layer of antireflection coating consecutively on a half-a-mile roll of stainless steel. The coated web is next slabbed andprocessed to make a variety of products. The design of the machine and processes used incorporate several key features developed for improving cell efficiency. In order to reduce manufacturing cost, higher deposition rates and thinner cells than are used in R&D have been used. The back reflector also consists of Al/ZnO rather than Ag/ZnO. Large-scale production has begun, and products are beingshipped for a wide range of applications.
Original language | American English |
---|---|
Pages | 607-610 |
Number of pages | 4 |
DOIs | |
State | Published - 1997 |
Event | Twenty Sixth IEEE Photovoltaic Specialists Conference - Anaheim, California Duration: 29 Sep 1997 → 3 Oct 1997 |
Conference
Conference | Twenty Sixth IEEE Photovoltaic Specialists Conference |
---|---|
City | Anaheim, California |
Period | 29/09/97 → 3/10/97 |
Bibliographical note
Work performed by United Solar Systems Corp, Troy, Michigan and Energy Conversion Devices, Inc., Troy, MichiganNREL Publication Number
- NREL/CP-520-24984