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High specific power flexible integrated IMM photovoltaic blanket

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2012 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Nanohmics, Inc
6201 East Oltorf St. Suite 400 Austin, TX 78741-7511
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2012
Title: High specific power flexible integrated IMM photovoltaic blanket
Agency: NASA
Contract: NNX12CE09P
Award Amount: $124,981.00


Originally designed for space applications, multi-junction solar cells have a high overall power conversion efficiency (>30%) which compares favorably to amorphous silicon, CIGS and bulk heterojunction photovoltaic devices which are limited to<10%. Recent advances in manufacturing of Inverted Metamorphic Multi-junction (IMM) solar cells have opened new opportunities to greatly improve the specific power of the devices by means of removal of the epitaxial substrate. To date, flexible high efficiency IMMs have been fabricated and demonstrated in the framework of a space cell with IMMs released from the epitaxial substrate onto traditional coverglass. An increasing larger body of research is aimed at populating large area "blankets" with IMMs and this has led to a number of approaches that includes removal of rigid epitaxy growth substrates and adherence to lightweight flexible webs or polymer films. So far, there is no economic and fast approach to efficiently remove the growth substrate.Nanohmics proposes to develop a non-destructive approach for transfer of IMM solar devices from rigid growth substrates into flexible high specific power solar cell blankets. The method will enable integration of state-of-the-art photovoltaics into a large area conformal "blanket" for space applications. The proposed effort will include development of a novel sacrificial intermediate layer on which high efficiency IMM photovoltaics are epitaxially deposited.

Principal Investigator:

Qizhen "Jim" Xue
Principal Investigator

Business Contact:

Michael Mayo
Business Official
Small Business Information at Submission:

Nanohmics, Inc.
6201 East Oltorf Street, Suite 400 Austin, TX 78741-7511

EIN/Tax ID: 743072245
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No