photovoltaics. lecture 6. cigs
DESCRIPTION
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
![Page 1: Photovoltaics. Lecture 6. CIGS](https://reader035.vdocuments.site/reader035/viewer/2022062222/56815735550346895dc4d462/html5/thumbnails/1.jpg)
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.
![Page 2: Photovoltaics. Lecture 6. CIGS](https://reader035.vdocuments.site/reader035/viewer/2022062222/56815735550346895dc4d462/html5/thumbnails/2.jpg)
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.
![Page 3: Photovoltaics. Lecture 6. CIGS](https://reader035.vdocuments.site/reader035/viewer/2022062222/56815735550346895dc4d462/html5/thumbnails/3.jpg)
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
![Page 4: Photovoltaics. Lecture 6. CIGS](https://reader035.vdocuments.site/reader035/viewer/2022062222/56815735550346895dc4d462/html5/thumbnails/4.jpg)
Universität Karlsruhe (TH)
4Photovoltaics. Lecture 6. CIGS.
Cu(Inx,Ga1-x)Se2 (CIGS) solar cells:
![Page 5: Photovoltaics. Lecture 6. CIGS](https://reader035.vdocuments.site/reader035/viewer/2022062222/56815735550346895dc4d462/html5/thumbnails/5.jpg)
Universität Karlsruhe (TH)
5Photovoltaics. Lecture 6. CIGS.
Solar cells industry:
H.S. Ullal and B. von Roedern, NREL/CP-520-42058, September 2007
![Page 6: Photovoltaics. Lecture 6. CIGS](https://reader035.vdocuments.site/reader035/viewer/2022062222/56815735550346895dc4d462/html5/thumbnails/6.jpg)
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)
![Page 7: Photovoltaics. Lecture 6. CIGS](https://reader035.vdocuments.site/reader035/viewer/2022062222/56815735550346895dc4d462/html5/thumbnails/7.jpg)
Universität Karlsruhe (TH)
7Photovoltaics. Lecture 6. CIGS.
Cu(Inx,Ga1-x)Se2 (CIGS):
E (x)[eV] = 1,02 +0,67x + 0,11x(x-1)
![Page 8: Photovoltaics. Lecture 6. CIGS](https://reader035.vdocuments.site/reader035/viewer/2022062222/56815735550346895dc4d462/html5/thumbnails/8.jpg)
Universität Karlsruhe (TH)
8Photovoltaics. Lecture 6. CIGS.
Cu(Inx,Ga1-x)Se2 (CIGS):
![Page 9: Photovoltaics. Lecture 6. CIGS](https://reader035.vdocuments.site/reader035/viewer/2022062222/56815735550346895dc4d462/html5/thumbnails/9.jpg)
Universität Karlsruhe (TH)
9Photovoltaics. Lecture 6. CIGS.
Cu(Inx,Ga1-x)Se2 (CIGS):
![Page 10: Photovoltaics. Lecture 6. CIGS](https://reader035.vdocuments.site/reader035/viewer/2022062222/56815735550346895dc4d462/html5/thumbnails/10.jpg)
Universität Karlsruhe (TH)
10Photovoltaics. Lecture 6. CIGS.
Cu(Inx,Ga1-x)Se2 (CIGS):