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High-efficiency silicon solar cells for a 22-sun line-focus module

Silver, J R ; Patel, B

Illumina Technology Records - unstructured, 1990

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High-efficiency silicon solar cells for a 22-sun line-focus module
Autor: Silver, J R ; Patel, B
É parte de: Illumina Technology Records - unstructured, 1990
Notas: content type line 59
SourceType-Reports-1
ObjectType-Report-1
Descrição: The purpose of this program was for Solarex, a commercial silicon solar cell supplier, to demonstrate the capability of fabricating high efficiency 38.4 cm(sup 2) concentrator cells in a production environment. These cells were designed for use in 22-sun line-focus concentrator module that could generate 20 kW for the PVUSA EMT-1 project. The cells were fabricated using p-type, .8 ohm-cm silicon, randomly textured fronts, dual-layer anti-reflective coatings, passivated emitters, restricted emitter /metallization contact areas, and silver gridlines with large cross-sectional areas. Prismatic covers were used to eliminate losses from gridline shadowing. Cell efficiencies as high as 20.34% were demonstrated on covered cells at 20 suns air mass 1.5 illumination. The process sequence includes a single diffusion step, a thin thermal oxide growth, and two mechanically registered photolithography steps. 13 figs., 3 tabs.
Idioma: Inglês

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