184
40th IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE
TECHNICAL PROGRAM
10:45
(1028) Identification of trap states for two-step
two-photon-absorption processes in InAs
quantum structures for intermediate-band solar
cells
David Tex
1,2
, Itaru Kamiya
3
, Yoshihiko Kanemitsu
1,2
1
Institute for Chemical Research, Kyoto University,
Uji, Kyoto 611-0011, Japan,
2
Japan Science and
Technology Agency, CREST, Uji, Kyoto 611-0011,
Japan,
3
Toyota Technological Institute, Nagoya, Aichi
468-8511, Japan
11:00
(1029) Urbach Tail in Intermediate Band InAs/
GaAs Quantum Dot Solar Cells
Tian Li, Mario Dagenais
University of Maryland, College Park, MD, USA
11:15
(1030) Experimental Examination of an InAs/
GaAs(Sb)/AlAsSb Quantum Dot Approach to the
Intermediate Band Solar Cell
Zachary S Bittner
1
, Ramesh B Laghumavarapu
2
,
Staffan Hellstroem
1
, Diana Huffaker
2
, Baolai Liang
2
,
Seth M Hubbard
1
1
Rochester Institute of Technology, Rochester, NY,
USA,
2
University of California at Los Angeles, Los
Angeles, CA, USA
11:30
(1031) Electron barrier engineering in a thin-film
intermediate band solar cell
Nazmul Ahsan
1
, Naoya Miyashita
1
, Kin Man Yu
2
,
Wladek Walukiewicz
2
, Yoshitaka Okada
1
1
The University of Tokyo, Tokyo, Japan,
2
Lawrence
Berkeley National Laboratory, Berkeley, CA, USA
11:45
(1032) Limiting Efficiency of Silicon Intermediate
Band Solar Cells
Esther Lopez, Antonio Marti, Elisa Antolin, Antonio
Luque
Instituto Energia Solar - UPM, Madrid, Spain
Area 2 - Orals
10:30 - 11:45 AM
MR 502-504
CIGS 2
Chair(s): Thomas Unold, Bill Shafarman
10:30
(1033) Co-evaporated CuInSe
2
: Influence of Na
and Temperature on Solar Cell Performance
Stephan Brunken, Dieter Greiner, Hengameh Allaf
Navirian, Christian A. Kaufmann, Thomas Unold
Helmholtz-Zentrum Berlin für Materialien und
Energie, Berlin, Germany
10:45
(1034) Incorporation of Na In Cu(In,Ga)Se
2
Thin Film Solar Cells: a Statistical Comparison
Between Na from Soda Lime Glass and from a
Precursor Layer of NaF
P M P Salomé, Adam Hultqvist, Viktor Fjällström,
Marika Edoff
Ångström Solar Center, Solid State Electronics,
Uppsala University, Ångström Laboratory, Uppsala,
Sweden
11:00
(1035) In-Se surface treatment of Cu-rich grown
CuInSe
2
Tobias Bertram, Valérie Deprédurand, Susanne
Siebentritt
Laboratory for Photovoltaics, University of
Luxembourg, Belvaux, Luxembourg
