photovoltaics. lecture 6. cigs
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Photovoltaics. Lecture 6. CIGS. From previous lecture:. Contacts resistance and recombination. Useful recombination limits. Thickness dependant efficiency. TOM TIEDJE et al., IEEE TRANS. ON EL. DEVICES, VOL. ED-31, NO. 5 , MAY 1984. Photovoltaics. Lecture 6. CIGS. - PowerPoint PPT PresentationTRANSCRIPT
Universität Karlsruhe (TH)
1Photovoltaics. Lecture 6. CIGS.
From previous lecture:
Contacts resistance and recombination.
TOM TIEDJE et al., IEEE TRANS. ON EL. DEVICES, VOL. ED-31, NO. 5 , MAY 1984
Thickness dependant efficiency.
Useful recombination limits.
Universität Karlsruhe (TH)
2Photovoltaics. Lecture 6. CIGS.
Few words on amorphous Si:
Semi-direct band gap,with exponential edges.
Absorption up to 2.5 times higher than in crystalline Si.
Hydrogen improves properties.
Universität Karlsruhe (TH)
3Photovoltaics. Lecture 6. CIGS.
Few words on amorphous Si:
1.7eV
1.1eV
Staebler-Wronski Effect:Significant decline in the efficiency of a-Si:H solar cells during first few hundred hours of
illumination
Universität Karlsruhe (TH)
4Photovoltaics. Lecture 6. CIGS.
Cu(Inx,Ga1-x)Se2 (CIGS) solar cells:
Universität Karlsruhe (TH)
5Photovoltaics. Lecture 6. CIGS.
Solar cells industry:
H.S. Ullal and B. von Roedern, NREL/CP-520-42058, September 2007
Universität Karlsruhe (TH)
6Photovoltaics. Lecture 6. CIGS.
Cu(Inx,Ga1-x)Se2 (CIGS):
C
-phase CuIn3Se5
R. Herberholz et al.,Euro. Phys. J. AP 6, 131 (1999)
Universität Karlsruhe (TH)
7Photovoltaics. Lecture 6. CIGS.
Cu(Inx,Ga1-x)Se2 (CIGS):
E (x)[eV] = 1,02 +0,67x + 0,11x(x-1)
Universität Karlsruhe (TH)
8Photovoltaics. Lecture 6. CIGS.
Cu(Inx,Ga1-x)Se2 (CIGS):
Universität Karlsruhe (TH)
9Photovoltaics. Lecture 6. CIGS.
Cu(Inx,Ga1-x)Se2 (CIGS):
Universität Karlsruhe (TH)
10Photovoltaics. Lecture 6. CIGS.
Cu(Inx,Ga1-x)Se2 (CIGS):