Photocarrier drift distance in organic solar cells and photodetectors

Scientific Reports

Volumn 5, Issue , 2015, Pages

  Stolterfoht, Martin ^a   Armin, Ardalan ^a   Philippa, Bronson ^c   White, Ronald D ^b   Burn, Paul L ^a   Meredith, Paul ^a   Juška, Gytis ^c   Pivrikas, Almantas ^a,d  

^a UNIVERSITY OF QUEENSLAND   (Australia)

^b JAMES COOK UNIVERSITY   (Australia)

^c VILNIUS UNIVERSITY   (Lithuania)

^d MURDOCH UNIVERSITY   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 84929103812     PISSN: None     EISSN: 20452322     Source Type: Journal    
DOI: 10.1038/srep09949     Document Type: Article

References (42)

1. Hecht, K. Zum mechanismus des lichtelektrischen primaerstromes in isolierenden kristallen. Z. Phys. 77, 235-245 (1932).
2. Schubert, E. F. Light-Emitting Diodes. (Cambridge University Press, 2006).
3. Sze, S. M. Semiconductor Devices, Physics and Technology. (Wiley, 1985).
4. Pope, M. & Swenberg, C. E. Electronic Processes in Organic Crystals and Polymers. (Oxford University Press, 1999).
5. Mihailetchi, V. D., Wildeman, J. & Blom, P. W. M. Space-charge limited photocurrent. Phys. Rev. Lett. 94, 126602 (2005).
6. Morfa, A. J., Nardes, A. M., Shaheen, S. E., Kopidakis, N. & van de Lagemaat, J. Time-of-flight studies of electron-collection kinetics in polymer:fullerene bulkheterojunction solar cells. Adv. Funct. Mater. 21, 2580-2586 (2011).
7. Vijila, C. et al. Relation between charge carrier mobility and lifetime in organic photovoltaics. J. Appl. Phys. 114, 184503 (2013).
8. Poortmans, J. & Arkhipov V. Thin Film Solar Cells: Fabrication, Characterization and Applications. (John Wiley & Sons, 2006).
9. Klauk, H. Organic Electronics: Materials, Manufacturing, and Applications. (Wiley, 2006).
10. Zang, L. Energy Efficiency and Renewable Energy Through Nanotechnology. (Springer, 2011).
11. Kirchartz, T., Agostinelli, T., Campoy-Quiles, M., Gong, W. & Nelson, J. Understanding the thickness-dependent performance of organic bulk heterojunction solar cells: The influence of mobility, lifetime, and space charge. J. Phys. Chem. Lett. 3, 3470-3475 (2012).
12. Street, R. A., Krakaris, A.&Cowan, S. R. Recombination through different types of localized states in organic solar cells. Adv. Funct. Mater. 22, 4608-4619 (2012).
13. Tumbleston, J. R., Liu, Y., Samulski, E. T. & Lopez. R. Interplay between bimolecular recombination and carrier transport distances in bulk heterojunction organic solar cells. Adv. Energy Mater. 2, 477-486 (2012).
14. Liang, Y. et al. For the bright future-bulk heterojunction polymer solar cells with power conversion efficiency of 7.4%. Adv. Mater. 22, E135-E138 (2010).
15. Blouin, N., Michaud, A. & Leclerc, M. A low-bandgap poly(2,7-carbazole) derivative for use in high-performance solar cells. Adv. Mater. 19, 2295-2300 (2007).
16. Armin, A. et al. Balanced carrier mobilities: Not a necessary condition for highefficiency thin organic solar cells as determined by mis-celiv. Adv. Energy Mater. 4, 1300954 (2014).
17. Li, Z., Lakhwani, G., Greenham, N. C. & McNeill, C. R. Voltage-dependent photocurrent transients of PTB7:PC70BM solar cells: Experiment and numerical simulation. J. Appl. Phys. 114, 034502 (2013).
18. Wakim, S. et al. Highly efficient organic solar cells based on a poly(2,7-carbazole) derivative. J. Mater. Chem. 19, 5351-5358 (2009).
19. Philippa, B. et al. The impact of hot charge carrier mobility on photocurrent losses in polymer-based solar cells. Sci. Rep. 4, 1-8 (2014).
20. Stolterfoht, M. et al. Advantage of suppressed non-langevin recombination in low mobility organic solar cells. Appl. Phys. Lett. 105, 013302 (2014).
21. Huynh, W. U. et al. Charge transport in hybrid nanorod-polymer composite photovoltaic cells. Phys. Rev. B 67, 115326 (2003).
22. He, Z. et al. Simultaneous enhancement of open-circuit voltage, short-circuit current density, and fill factor in polymer solar cells. Adv. Mater. 23, 4636-4643 (2011).
23. Lenes, M., Morana, M., Brabec, C. J. & Blom, P. W. M. Recombination-limited photocurrents in low bandgap polymer/fullerene solar cells. Adv. Funct. Mater. 19, 1106-1111 (2009).
24. Shuttle, C. G., Hamilton, R., Nelson, J., O'Regan, B. C. & Durrant, J. R. Measurement of charge-density dependence of carrier mobility in an organic semiconductor blend. Adv. Funct. Mater. 20, 698-702 (2010).
25. Koster, L. J. A., Kemerink, M., Wienk, M. M., Klará, M. & Janssen, R. A. J. Quantifying bimolecular recombination losses in organic bulk heterojunction solar cells. Adv. Mater. 23, 1670-1674 (2011).
26. Mihailetchi, V., Xie, H., de Boer, B., Koster, L. & Blom, P. Charge transport and photocurrent generation in poly(3-hexylthiophene): methanofullerene bulkheterojunction solar cells. Adv. Func. Mater. 16, 699-708 (2006).
27. Verreet, B. et al. Decreased recombination through the use of a non-fullerene acceptor in a 6.4% efficient organic planar heterojunction solar cell. Adv. Energy Mater. 4, 1301413 (2014).
28. Wu, S. et al. High response deep ultraviolet organic photodetector with spectrum peak focused on 280 nm. Appl. Phys. Lett. 96, 093302 (2010).
29. Gong, X. et al. High-detectivity polymer photodetectors with spectral response from 300 nm to 1450 nm. Science 325, 1665-1667 (2009).
30. Street, R. A., Schoendorf, M., Roy, A. & Lee, J. H. Interface state recombination in organic solar cells. Phys. Rev. B 81, 205307 (2010).
31. Cowan, S. R., Roy, A. & Heeger, A. J. Recombination in polymer-fullerene bulk heterojunction solar cells. Phys. Rev. B 82, 245207 (2010).
32. Cowan, S. R., Leong, W. L., Banerji, N., Dennler, G. & Heeger, A. J. Identifying a threshold impurity level for organic solar cells: Enhanced first-order recombination via well-defined PC84BM traps in organic bulk heterojunction solar cells. Adv. Funct. Mater. 21, 3083-3092 (2011).
33. Cowan, S., Banerji, N., Leong, W. & Heeger, A. J. Charge formation, recombination, and sweep-out dynamics in organic solar cells. Adv. Funct. Mater. 22, 1116-1128 (2012).
34. Leong, W. L., Cowan, S. R.&Heeger, A. J. Differential resistance analysis of charge carrier losses in organic bulk heterojunction solar cells: Observing the transition from bimolecular to trap-assisted recombination and quantifying the order of recombination. Adv. Energy Mater. 1, 517-522 (2011).
35. Foertig, A. et al. Nongeminate and geminate recombination in PTB7:PCBM solar cells. Adv. Funct. Mater. 24, 1306 (2014).
36. Philippa, B. et al. Molecular weight dependent bimolecular recombination in organic solar cells. J. Chem. Phys. 141, 054903 (2014).
37. Armin, A. et al. Doping-induced screening of the built-in-field in organic solar cells: Effect on charge transport and recombination. Adv. Energy Mater. 3, 321-327 (2013).
38. Pivrikas, A., Neugebauer, H. & Sariciftci, N. Charge carrier lifetime and recombination in bulk heterojunction solar cells. IEEE J. Sel. Topics Quantum Electron. 16, 1746-1758 (2010).
39. Credgington, D. & Durrant, J. R. Insights from transient optoelectronic analyses on the open-circuit voltage of organic solar cells. J. Phys. Chem. Lett. 3, 1465-1478 (2012).
40. Vandewal, K., Tvingstedt, K., Gadisa, A., Inganis, O. &Manca, J. V. On the origin of the open-circuit voltage of polymer-fullerene solar cells. Nat. Mater. 8, 904-909 (2009).
41. Armin, A., Velusamy, M., Burn, P. L., Meredith, P. & Pivrikas, A. Injected charge extraction by linearly increasing voltage for bimolecular recombination studies in organic solar cells. Appl. Phys. Lett. 101, 083306 (2012).
42. Wolfer, P. et al. Solution structure: defining polymer film morphology and optoelectronic device performance. J. Mater. Chem. C 2, 71-77 (2014).