In principle, Auger recombination should constitute the ultimate limiting mechanism for concentrator photovoltaic performance as optical concentration, and hence current densities, are raised to progressively higher values. In reality, however, the effect will be rate-limiting only in indirect-band-gap solar cells—a point well established for silicon but not yet explored for germanium which comprises the lowest-energy junction in today's ultraefficient commercial multijunction concentrator solar cells. Detailed calculations of when Auger recombination should play a substantial role are presented, and reinforced by existing data.
REFERENCES
1.
V. K.
Khanna
, Prog. Quantum Electron.
29
, 59
(2005
).2.
M.
Green
, IEEE Trans. Electron Devices
31
, 671
(1984
).3.
M. J.
Kerr
, A.
Cuevas
, and P.
Campbell
, Prog. Photovoltaics
11
, 97
(2003
).4.
R. A.
Sinton
and R. M.
Swanson
, IEEE Trans. Electron Devices
34
, 1380
(1987
).5.
See supplementary material at http://dx.doi.org/10.1063/1.3510474 for SRH and radiative contributions to carrier lifetime.
6.
E.
Gaubas
, Appl. Phys. Lett.
89
, 142106
(2006
).7.
E.
Gaubas
, M.
Bauza
, A.
Uleckas
, and J.
Vanhellemont
, Mater. Sci. Semicond. Process.
9
, 781
(2006
).8.
http://www.ioffe.rssi.ru/SVA/NSM/Semicond/Ge/bandstr.html, and
F
Scháffler
, in Properties of Advanced Semiconductor Materials: GaN, AlN, InN, BN, SiC, SiGe
, edited by M. E.
Levinshtein
, S. L.
Rumyantsev
, and M. S.
Shur
, (Wiley
, New York, 2001
), Chap. 6, p. 149
–188
.9.
http://www.pv.unsw.edu.au/links/products/pc1d.asp, and
P. A.
Basore
and D. A.
Clugston
, Proc. 26th IEEE Photovoltaic Specialists Conference
, p. 207
–210
(1997
).10.
J. M.
Gordon
, E. A.
Katz
, D.
Feuermann
, and M.
Huleihil
, Appl. Phys. Lett.
84
, 3642
(2004
).11.
J.
Sun
, T.
Israeli
, T. A.
Reddy
, K.
Scoles
, J. M.
Gordon
, and D.
Feuermann
, J. Sol. Energy Eng.
127
, 138
(2005
).12.
O.
Heikkilä
, J.
Oksanen
, and J.
Tulkki
, J. Appl. Phys.
107
, 033105
(2010
).13.
J. M.
Gordon
, E. A.
Katz
, W.
Tassew
, and D.
Feuermann
, Appl. Phys. Lett.
86
, 073508
(2005
).14.
E. A.
Katz
, J. M.
Gordon
, W.
Tassew
, and D.
Feuermann
, J. Appl. Phys.
100
, 044514
(2006
).15.
O.
Korech
, B.
Hirsch
, E. A.
Katz
, and J. M.
Gordon
, Appl. Phys. Lett.
91
, 064101
(2007
).16.
D.
Babai
, D.
Feuermann
, and J. M.
Gordon
, Proc. SPIE
7769
, 77690A
(2010
).© 2010 American Institute of Physics.
2010
American Institute of Physics
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