Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Reexamination Certificate
2006-02-23
2009-12-01
Barton, Jeffrey T. (Department: 1795)
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
C136S256000, C136S262000
Reexamination Certificate
active
07626116
ABSTRACT:
A method of reducing propagation of threading dislocations into active areas of an optoelectronic device having a III-V material system includes growing a metamorphic buffer region in the presence of an isoelectronic surfactant. A first buffer layer may be lattice matched to an adjacent substrate and a second buffer layer may be lattice matched to device layers disposed upon the second buffer layer. Moreover, multiple metamorphic buffer layers fabricated in this manner may be used in a single given device allowing multiple layers to have their band gaps and lattice constants independently selected from those of the rest of the device.
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Cotler Peter C.
Ermer James H.
Fetzer Christopher M.
King Richard R.
Barton Jeffrey T.
Hope Baldauff Hartman LLC
The Boeing Company
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