Applied Physics Letters
Feedback | Help | Exit
Applied Physics Letters
Search:
   
 
 
 
Previous Article
Electronegativity equalization model for interface barrier formation at reactive metal/organic contacts
A general model based on electronegativity equalization method (EEM) is proposed for a quantitative formulation of barrier formation at reactive metal/organic interfaces. The present model predicts fo...
Next Article
Exciton switching and Peierls transitions in hybrid inorganic-organic self-assembled quantum wells
The switching behavior of exciton absorption and photoluminescence is systematically explored in hybrid inorganic-organic multiple quantum well structures, based on (C12H25NH3)2PbI4 thin films and sin...

Photocurrent enhancement in polymer:fullerene bulk heterojunction solar cells doped with a phosphorescent molecule

Appl. Phys. Lett. 95, 173304 (2009); doi:10.1063/1.3257383

Published 30 October 2009

You are logged in to this journal.

Barry P. Rand,1 Claudio Girotto,1,2 Alexander Mityashin,1,2 Afshin Hadipour,1 Jan Genoe,1 and Paul Heremans1,2
1IMEC, Kapeldreef 75, B-3001 Leuven, Belgium
2ESAT, Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, B-3001 Leuven, Belgium
We demonstrate photocurrent enhancement of up to 20% in polymer:fullerene bulk heterojunction photovoltaic cells via the incorporation of a phosphorescent dopant, without degradation in the open-circuit voltage or fill factor of the device. The enhancement is shown to originate from multiple sources. First, the phosphor is able to populate the long-lived triplet state of the polymer, leading to longer diffusion length and a larger polymer contribution. Also, there is direct absorption on the dopant leading to enhanced spectral coverage. Finally, the dopant acts as a donor site and therefore increases the fullerene signal. ©2009 American Institute of Physics
History: Received 27 August 2009; accepted 9 October 2009; published 30 October 2009
Permalink: http://link.aip.org/link/?APPLAB/95/173304/1
FULL TEXT OPTIONS   (FREE)
Download HTML Download Sectioned HTML Download PDF (127 kB) View Cart

KEYWORDS and PACS

Keywords
PACS
  • 66.30.H-
    Self-diffusion and ionic conduction in solid nonmetals
  • 72.40.+w
    Photoconduction and photovoltaic effects
  • 81.05.Lg
    Organic materials and polymers: fabrication, treatment, testing and analysis
  • YEAR: 2009

RELATED DATABASES

Web of Science

View this record in Web of Science

PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (17)
View in Separate Window/Tab
  1. B. P. Rand, J. Genoe, P. Heremans, and J. Poortmans, Prog. Photovoltaics 15, 659 (2007).
  2. B. C. Thompson and J. M. J. Fréchet, Angew. Chem. Int. Ed. 47, 58 (2008). [MEDLINE]
  3. M. Lenes, M. Morana, C. J. Brabec, and P. W. M. Blom, Adv. Funct. Mater. 19, 1106 (2009).
  4. F. Q. Guo, Y. G. Kim, J. R. Reynolds, and K. S. Schanze, Chem. Commun. (Camb.) 17, 1887 (2006). [MEDLINE]
  5. A. Kohler, H. F. Wittmann, R. H. Friend, M. S. Khan, and J. Lewis, Synth. Met. 77, 147 (1996). [Inspec] [ISI]
  6. M. Arif, K. Yang, L. Li, P. Yu, S. Guha, S. Gangopadhyay, M. Förster, and U. Scherf, Appl. Phys. Lett. 94, 063307 (2009).
  7. Z. H. Xu, B. Hu, and J. Howe, J. Appl. Phys. 103, 043909 (2008).
  8. B. P. Rand, S. Schols, D. Cheyns, H. Gommans, C. Girotto, J. Genoe, P. Heremans, and J. Poortmans, Org. Electron. 10, 1015 (2009).
  9. W. A. Luhman and R. J. Holmes, Appl. Phys. Lett. 94, 153304 (2009).
  10. T. Martens, J. D'Haen, T. Munters, Z. Beelen, L. Goris, J. Manca, M. D'Olieslaeger, D. Vanderzande, L. D. Schepper, and R. Andriessen, Synth. Met. 138, 243 (2003). [Inspec] [ISI]
  11. J. K. J. van Duren, X. N. Yang, J. Loos, C. W. T. Bulle-Lieuwma, A. B. Sieval, J. C. Hummelen, and R. A. J. Janssen, Adv. Funct. Mater. 14, 425 (2004). [ISI]
  12. F. Laquai, C. Im, A. Kadashchuk, and H. Bässler, Chem. Phys. Lett. 375, 286 (2003). [Inspec] [ISI]
  13. V. D. Mihailetchi, L. J. A. Koster, P. W. M. Blom, C. Melzer, B. de Boer, J. K. J. van Duren, and R. A. J. Janssen, Adv. Funct. Mater. 15, 795 (2005). [ISI]
  14. S. M. Tuladhar, D. Poplavskyy, S. A. Choulis, J. R. Durrant, D. D. C. Bradley, and J. Nelson, Adv. Funct. Mater. 15, 1171 (2005).
  15. J. Peet, A. B. Tamayo, X. D. Dang, J. H. Seo, and T. Q. Nguyen, Appl. Phys. Lett. 93, 163306 (2008).
  16. S. Honda, T. Nogami, H. Ohkita, H. Benten, S. Ito, and A. C. S. Appl, Mater. Interfaces 1, 804 (2009).
  17. W. J. Belcher, K. I. Wagner, and P. C. Dastoor, Sol. Energy Mater. Sol. Cells 91, 447 (2007).






Copyright © American Institute of Physics