universität karlsruhe (th) 1 photovoltaics. lecture 7. cigs. from previous lecture: amorphous si....
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Universität Karlsruhe (TH)
1Photovoltaics. Lecture 7. CIGS.
From previous lecture:
Amorphous Si.Cu(Inx,Ga1-x)Se2
(CIGS):.Wide energy sensitivity.
K. Miyazaki et al., “High sensitivity and wide bandwidth Image Sensor using CuIn1-xGaxSe2 thin films”Thin Solid Films In Press, Accepted Manuscript
E (x)[eV] = 1,02 +0,67x + 0,11x(x-1)
Universität Karlsruhe (TH)
2Photovoltaics. Lecture 7. CIGS.
Image sensor: spectral sensitivity
K. Miyazaki et al., “High sensitivity and wide bandwidth Image Sensor using CuIn1-xGaxSe2 thin films” Thin Solid Films In Press, Accepted Manuscript
Universität Karlsruhe (TH)
3Photovoltaics. Lecture 7. CIGS.
Carsten Deibel, Dr. Jürgen Parisi, and Dr. Vladimir Dyakonov, “Defect Spectroscopy on Cu(In,Ga)(S,Se)2-Based Heterojunction Solar Cells: Role of the Damp-Heat Treatment”
The dashed lines show a case, where the activation energy of a defect state at the
CdS/Cu(In,Ga)(S,Se)2 interface is increased due to changes at the
interface
Universität Karlsruhe (TH)
4Photovoltaics. Lecture 7. CIGS.
Growth:
Georg Voorwinden, Robert Kniese, and Michael Powalla, “In-line Cu(In,Ga)Se2 co-evaporation processes with graded band gaps on large substrates,” Thin Solid Films 431-432 (May 1, 2003)
Universität Karlsruhe (TH)
5Photovoltaics. Lecture 7. CIGS.
Growth: Real live
ZSW, Stuttgart
Universität Karlsruhe (TH)
6Photovoltaics. Lecture 7. CIGS.
Yanfa Yan et al., Physica B: Condensed Matter 401-402 (December 15, 2007) Powalla et al., Thin Solid Films In Press, Accepted Manuscript
T. Eisenbarth et al., Thin Solid Films In Press, Accepted Manuscript
Grains:
Polycrystalline Cu(In,Ga)Se2 (CIGS)-based device is now
approaching 20%, significantly surpassing the best
corresponding single-crystal devices (13%)
Universität Karlsruhe (TH)
7Photovoltaics. Lecture 7. CIGS.
Markus Gloeckler, James R. Sites, and Wyatt K. Metzger, “Grain-boundary recombination in Cu(In,Ga)Se2 solar cells,” Journal of Applied Physics 98, no. 11 (December 1, 2005)
Grains:
Universität Karlsruhe (TH)
8Photovoltaics. Lecture 7. CIGS.
C.-S. Jiang et al., “Local built-in potential on grain boundary of Cu(In,Ga)Se[sub 2] thin films,”Applied Physics Letters 84, no. 18 (May 3, 2004)
Grains:
Universität Karlsruhe (TH)
9Photovoltaics. Lecture 7. CIGS.
Alternative fabrication and progress:
Universität Karlsruhe (TH)
10Photovoltaics. Lecture 7. CIGS.
Thank you:
SRG group lieder,Dr. Anatoliy Slobodskyy
--Universität Karlsruhe
Lichttechnisches Institut (LTI)Kaiserstraße 1276131 Karlsruhe
Deutschland
Tel 0721 608 3981Fax 0721 608 2590
E-mail: [email protected]
Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-
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70565 StuttgartDeutschland