Proceedings Paper
Light weight low cost InGaP/GaAs dual-junction solar cells on 4" epitaxial liftoff (ELO) wafers| Format | Member Price | Non-Member Price |
|---|---|---|
| $17.00 | $21.00 |
Paper Abstract
High-efficiency, low-cost InGaP/GaAs dual-junction epitaxial liftoff (ELO) solar cells have been fabricated on full
4" GaAs substrates. These dual-junction solar cells exhibited an efficiency of 28.69% at AM1.5D, one-sun
illumination. This is the highest reported efficiency for dual-junction ELO solar cells to date. After application of
antireflection coating, the dual-junction ELO cells also exhibited fill factor >85%, open circuit voltage = 2.37 V, and
short circuit current density = 13 mA/cm2. An external quantum efficiency >85% was measured for both the GaAs
and InGaP sub-cells. An ELO dual-junction solar cell wafer typically weighs less than 1.7 g and has a total
semiconductor thickness <5 μm. Reclaim and reuse of the GaAs substrate after the ELO process has been
successfully demonstrated.
Paper Details
Date Published: 20 August 2009
PDF: 6 pages
Proc. SPIE 7407, High and Low Concentrator Systems for Solar Electric Applications IV, 74070B (20 August 2009); doi: 10.1117/12.827449
Published in SPIE Proceedings Vol. 7407:
High and Low Concentrator Systems for Solar Electric Applications IV
Lori E. Greene, Editor(s)
PDF: 6 pages
Proc. SPIE 7407, High and Low Concentrator Systems for Solar Electric Applications IV, 74070B (20 August 2009); doi: 10.1117/12.827449
Show Author Affiliations
Rao Tatavarti, MicroLink Devices, Inc. (United States)
G. Hillier, MicroLink Devices, Inc. (United States)
C. Youtsey, MicroLink Devices, Inc. (United States)
D. McCallum, MicroLink Devices, Inc. (United States)
G. Martin, MicroLink Devices, Inc. (United States)
A. Wibowo, MicroLink Devices, Inc. (United States)
G. Hillier, MicroLink Devices, Inc. (United States)
C. Youtsey, MicroLink Devices, Inc. (United States)
D. McCallum, MicroLink Devices, Inc. (United States)
G. Martin, MicroLink Devices, Inc. (United States)
A. Wibowo, MicroLink Devices, Inc. (United States)
R. Navaratnarajah, MicroLink Devices, Inc. (United States)
F. Tuminello, MicroLink Devices, Inc. (United States)
D. Hertkorn, MicroLink Devices, Inc. (United States)
M. Disabb, MicroLink Devices, Inc. (United States)
N. Pan, MicroLink Devices, Inc. (United States)
F. Tuminello, MicroLink Devices, Inc. (United States)
D. Hertkorn, MicroLink Devices, Inc. (United States)
M. Disabb, MicroLink Devices, Inc. (United States)
N. Pan, MicroLink Devices, Inc. (United States)
Published in SPIE Proceedings Vol. 7407:
High and Low Concentrator Systems for Solar Electric Applications IV
Lori E. Greene, Editor(s)
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