OPTICAL OPTIMIZATION OF MULTIJUNCTION THIN FILM SILICON: HYDROGEN SOLAR CELLS

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$462,000.00
Award Year:
1988
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
7046
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Spectracom
Po Box 3178, Simi Valley, CA, 93063
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Ms Kimberly L Eskenas
(818) 341-4087
Business Contact:
() -
Research Institution:
n/a
Abstract
TO ACHIEVE THE PREDICTED HIGH POWER CONVERSION EFFICIENCIES OF MULTIJUNCTION AMORPHOUS SILICON SOLAR CELLS (A:SI), EFFICIENT USE OF ALL INCOMING SOLAR RADIATION IS NECESSARY. MULTIJUNCTION SOLAR CELL DEVICES ARE EFFICIENT COLLECTORS OFINCIDENT LIGHT, IN THEORY, BECAUSE LIGHT WITH ENERGY LESS THAN THE BANDGAP EDGE OF THE FIRST JUNCTION MAY BE EFFECTIVELY ABSORBED BY THE JUNCTION BELOW. IN PRACTICE, SIGNIFICANT REFLECTANCE LOSSES OCCUR BECAUSE OF OPTICALLY MISMATCHED LAYERS. AN INNOVATIVE SOLUTION TO THIS PROBLEM IS THE USE OF OPTICALLY OPTIMIZED, THIN FILM MULTILAYER FRONT AND BACK CONTACT DESIGNS. THE OBJECTIVE OF THE PROJECT IS TO INVESTIGATE A NOVEL DESIGN APPROACH FOR OPTICALLY OPTIMIZED FRONT AND BACK CONTACT CONFIGURATIONS FOR A TANDEM A:SI SOLAR CELL DEVICE. THE OPTIMIZED THIN FILM STACKS SERVE TO REDUCE REFLECTION LOSSES AS WELL AS TO MAXIMIZE THE TRANSMISSION OF INCIDENT LIGHT TO THE DEVICE BELOW.

* information listed above is at the time of submission.

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