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This data has achieved Bronze level on 23 October 2015 which means this data makes a great start at the basics of publishing open data.

Dry Epitaxial Lift-Off for High Efficiency Solar Cells Project

Summary

Type of release
a one-off release of a single dataset

Data Licence
Not Applicable

Content Licence
Creative Commons CCZero

Verification
automatically awarded

Release Date
9 April 2015
Modified Date
8 July 2015
Publishers
National Aeronautics and Space Administration
Keywords
completed, glenn-research-center, project
Identifier
dry-epitaxial-lift-off-for-high-efficiency-solar-cells-project
Landing Page
http://techport.nasa.gov/view/9287
Maintainers
TECHPORT SUPPORT hq-techport@mail.nasa.gov
Language
en-US

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Description

A new method of transferring epitaxially grown active films onto an inexpensive polymeric flexible carrier. Specifically, for making thin lightweight high efficiency (> 30%) IMM3J solar cells while reusing the GaAs or Ge base wafer. This will reduce the costs of fabricating high efficiency PV cells by 30% and will raise specific power to > 200W/kg. The method uses a thin strained layer under the epitaxially grown active layers without ion implantation or wet etching. A crack propagates in the strained layer splitting the epi-layers from the base wafer after bonding to polyimide wafer, hence dry epitaxial lift-off (DELO), due to the difference in thermal expansion coefficients between the semiconductor and flexible substrate without applying mechanical pressure. The base wafer is re-used to grow new epi-layers.

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This dataset has been created by US Government which means it is required to be in the public domain. However US copyright law only allows open access by US citizens, we have assumed the data is equivalently licensed as CC0 for the rest of the world as this is in the spirit of the US Government’s Open Data policy.

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