Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Reexamination Certificate
2006-12-29
2009-12-08
King, Roy (Department: 1793)
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
C136S249000, C136S252000, C257S014000, C257S098000, C438S072000
Reexamination Certificate
active
07629532
ABSTRACT:
A method and apparatus for solar cell having graded energy wells is provided. The active region of the solar cell comprises nanostructures. The nanostructures are formed from a material that comprises a III-V compound semiconductor and an element that alters the band gap of the III-V compound semiconductor. For example, the III-V compound semiconductor could be gallium nitride (GaN). As an example, the “band gap altering element” could be indium (In). The concentration of the indium in the active region is non-uniform such that the active region has a number of energy wells, separated by barriers. The energy wells may be “graded”, by which it is meant that the energy wells have a different band gap from one another, generally increasing or decreasing from one well to another monotonically.
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Kim James C.
Yi Sungsoo
King Roy
Lee Rebecca
Sundiode, Inc.
Vierra Magen Marcus & DeNiro LLP
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