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Journal of Nanotechnology in Engineering and Medicine | Volume 3 | Issue 1 | SPECIAL SECTION: SIMULATION AND EXPERIMENTAL STUDIES AND APPLICATIONS OF CARBON NANOTUBES AND GRAPHENES IN ENGINEERING AND MEDICINE
SPECIAL SECTION: SIMULATION AND EXPERIMENTAL STUDIES AND APPLICATIONS OF CARBON NANOTUBES AND GRAPHENES IN ENGINEERING AND MEDICINE

PEDOT:PSS/SWCNTs as a Transparent Electrode for Organic Photovoltaic Devices

[+] Author and Article Information
Hassen Derouiche1

Photovoltaic and Semiconductors Laboratory,  Research and Technical Centre of Energy, Borj-Cedria Science and Technology Park, BP 95, 2050 Hammam-Lif, Tunisiahderouiche@yahoo.fr

Abdellatif Belhadj Mohamed

Photovoltaic and Semiconductors Laboratory,  Research and Technical Centre of Energy, Borj-Cedria Science and Technology Park, BP 95, 2050 Hammam-Lif, Tunisia

1

Corresponding author.

J. Nanotechnol. Eng. Med 3(1), 010901 (Aug 13, 2012) (4 pages) doi:10.1115/1.4006915 History: Received February 18, 2012; Revised May 15, 2012; Published August 13, 2012
Article
References
Figures
Tables

We have fabricated a flexible organic solar cells, with an active layer of poly(3-hexylthiophene) (P3HT) blended with Fullerene derivative [6,6]-phenyl–C61–butyric acid methyl ester (PCBM) which was deposited by spin coating. The poly(3,4-ethylene dioxythiophene) poly(4-styrenesulfonate) (PEDOT:PSS), doped with ethylene glycol (EG) and single wall carbon nanotubes (SWCNTs), is heavily doped and therefore used as conductive transparent electrode rather than electron blocking layer. Likewise, we have deposited a layer of PEDOT:PSS/SWCNTs by spin coating. This layer is coated onto polyethylene terephthalate (PET) substrates. We have also compared the photovoltaic characteristics of the two different structures with PEDOT:PSS/SWCNTs or PEDOT:PSS/SWCNTs/PEDOT:PSS photoanode. Both structures show significant photovoltaic behavior. However, the power conversion efficiency has been scaled up from 1.02% to 1.93% resulting from the use of second layer of PEDOT:PSS.
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Copyright © 2012 by American Society of Mechanical Engineers
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References

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Figures

Grahic Jump Location
+TEM image of SWCNTs
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TEM image of SWCNTs
Figure 1

TEM image of SWCNTs

Grahic Jump Location
+FTIR spectra of (a) SWCNTs and (b) PEDOT:PSS/SWCNT
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FTIR spectra of (a) SWCNTs and (b) PEDOT:PSS/SWCNT
Figure 2

FTIR spectra of (a) SWCNTs and (b) PEDOT:PSS/SWCNT

Grahic Jump Location
+XRD patterns of (a) PEDOT:PSS and (b) PEDOT:PSS/SWCNTs thin films
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XRD patterns of (a) PEDOT:PSS and (b) PEDOT:PSS/SWCNTs thin films
Figure 3

XRD patterns of (a) PEDOT:PSS and (b) PEDOT:PSS/SWCNTs thin films

Grahic Jump Location
+Optical transmittance of the PET/PEDOT:PSS/SWCNTs with the inset showing the absorption of the P3HT:PCBM layer
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Optical transmittance of the PET/PEDOT:PSS/SWCNTs with the inset showing the absorption of the P3HT:PCBM layer
Figure 4

Optical transmittance of the PET/PEDOT:PSS/SWCNTs with the inset showing the absorption of the P3HT:PCBM layer

Grahic Jump Location
+AFM image of (a) P3HT after thermal annealing and (b) P3HT:PCBM thin film
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AFM image of (a) P3HT after thermal annealing and (b) P3HT:PCBM thin film
Figure 5

AFM image of (a) P3HT after thermal annealing and (b) P3HT:PCBM thin film

Grahic Jump Location
+I/V characteristics of PET/PEDOT:PSS/SWCNTs/P3HT:PCBM/Al/PVDF (--•--) and PET/PEDOT:PSS/SWCNTs/PEDOT:PSS/P3HT:PCBM/Al/PVDF (--▪--)
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I/V characteristics of PET/PEDOT:PSS/SWCNTs/P3HT:PCBM/Al/PVDF (--•--) and PET/PEDOT:PSS/SWCNTs/PEDOT:PSS/P3HT:PCBM/Al/PVDF (--▪--)
Figure 6

I/V characteristics of PET/PEDOT:PSS/SWCNTs/P3HT:PCBM/Al/PVDF (--•--) and PET/PEDOT:PSS/SWCNTs/PEDOT:PSS/P3HT:PCBM/Al/PVDF (--▪--)

Grahic Jump Location
+Schematic diagram of the organic solar cell
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Schematic diagram of the organic solar cell
Figure 7

Schematic diagram of the organic solar cell

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