Lightweight, Flexible Photovoltaic Module

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$125,000.00
Award Year:
2012
Program:
SBIR
Phase:
Phase I
Contract:
NNX12CD81P
Award Id:
n/a
Agency Tracking Number:
115470
Solicitation Year:
2011
Solicitation Topic Code:
S3.03
Solicitation Number:
n/a
Small Business Information
6457 Howard Street, Niles, IL, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
135553472
Principal Investigator:
Ray Chan
Principal Investigator
(847) 588-3001
dmccallum@mldevices.com
Business Contact:
Noren Pan
Business Official
(847) 588-3001
npan@mldevices.com
Research Institute:
Stub




Abstract
With recent advances in MicroLink's inverted metamorphic (IMM) multijunction epitaxial lift off (ELO) solar cells, new opportunities for solar cell packaging are possible that leverage the inherent physical flexibility of these high efficiency solar cells. Novel photovoltaic (PV) blankets can be constructed with these flexible and modular solar cells. Arrays of these ELO solar cells are first interconnected and then laminated to a flexible Tedlar backsheet. Thin coverglass protecting the cell from space environments is then applied onto the top of each cell and secured with space-grade encapsulants. High volume pick and place tooling from the semiconductor wafer industry can be applied to this assembly process to realize substantial cost reduction in the assembly of these solar cell modules. The resulting modular high efficiency photovoltaic blankets can readily be used as a drop-in replacement for current solar cells mounted on solar panels. Since the photovoltaic blanket is composed of several solar cells pre-assembled into an array format, the assembly process is streamlined where arrays of multiple cells are now placed down during panel assembly. Since MicroLink's IMM ELO solar cells are flexible, the resulting solar array module is also flexible and can be readily applied and conformed to flat and curved surfaces on a spacecraft. With this flexible module approach, large solar array concepts having high specific powers and improved stowage capabilities can be achieved. ATK's UltraFlex Solar Array System is a potential platform where these flexible modules could be applied.

* information listed above is at the time of submission.

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