Strong Photocurrent from Two-Dimensional Excitons in Solution-Processed Stacked Perovskite Semiconductor Sheets
Ahmad S, Kanaujia PK, Beeson HJ, Abate A, Deschler F, Credgington D, Steiner U, Prakash GV, Baumberg JJ (2015)
ACS Applied Materials & Interfaces 7(45): 25227-25236.
Zeitschriftenaufsatz
| Veröffentlicht | Englisch
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Autor*in
Ahmad, Shahab;
Kanaujia, Pawan K.;
Beeson, Harry J.;
Abate, AntonioUniBi
;
Deschler, Felix;
Credgington, Dan;
Steiner, Ullrich;
Prakash, G. Vijaya;
Baumberg, Jeremy J.
![](https://pub.uni-bielefeld.de/images/icon_orcid.png)
Einrichtung
Abstract / Bemerkung
Room-temperature photocurrent measurements in two-dimensional (2D) inorganic–organic perovskite devices reveal that excitons strongly contribute to the photocurrents despite possessing binding energies over 10 times larger than the thermal energies. The p-type (C6H9C2H4NH3)2PbI4 liberates photocarriers at metallic Schottky aluminum contacts, but incorporating electron- and hole-transport layers enhances the extracted photocurrents by 100-fold. A further 10-fold gain is found when TiO2 nanoparticles are directly integrated into the perovskite layers, although the 2D exciton semiconducting layers are not significantly disrupted. These results show that strong excitonic materials may be useful as photovoltaic materials despite high exciton binding energies and suggest mechanisms to better understand the photovoltaic properties of the related three-dimensional perovskites.
Erscheinungsjahr
2015
Zeitschriftentitel
ACS Applied Materials & Interfaces
Band
7
Ausgabe
45
Seite(n)
25227-25236
ISSN
1944-8244
eISSN
1944-8252
Page URI
https://pub.uni-bielefeld.de/record/2978900
Zitieren
Ahmad S, Kanaujia PK, Beeson HJ, et al. Strong Photocurrent from Two-Dimensional Excitons in Solution-Processed Stacked Perovskite Semiconductor Sheets. ACS Applied Materials & Interfaces. 2015;7(45):25227-25236.
Ahmad, S., Kanaujia, P. K., Beeson, H. J., Abate, A., Deschler, F., Credgington, D., Steiner, U., et al. (2015). Strong Photocurrent from Two-Dimensional Excitons in Solution-Processed Stacked Perovskite Semiconductor Sheets. ACS Applied Materials & Interfaces, 7(45), 25227-25236. https://doi.org/10.1021/acsami.5b07026
Ahmad, Shahab, Kanaujia, Pawan K., Beeson, Harry J., Abate, Antonio, Deschler, Felix, Credgington, Dan, Steiner, Ullrich, Prakash, G. Vijaya, and Baumberg, Jeremy J. 2015. “Strong Photocurrent from Two-Dimensional Excitons in Solution-Processed Stacked Perovskite Semiconductor Sheets”. ACS Applied Materials & Interfaces 7 (45): 25227-25236.
Ahmad, S., Kanaujia, P. K., Beeson, H. J., Abate, A., Deschler, F., Credgington, D., Steiner, U., Prakash, G. V., and Baumberg, J. J. (2015). Strong Photocurrent from Two-Dimensional Excitons in Solution-Processed Stacked Perovskite Semiconductor Sheets. ACS Applied Materials & Interfaces 7, 25227-25236.
Ahmad, S., et al., 2015. Strong Photocurrent from Two-Dimensional Excitons in Solution-Processed Stacked Perovskite Semiconductor Sheets. ACS Applied Materials & Interfaces, 7(45), p 25227-25236.
S. Ahmad, et al., “Strong Photocurrent from Two-Dimensional Excitons in Solution-Processed Stacked Perovskite Semiconductor Sheets”, ACS Applied Materials & Interfaces, vol. 7, 2015, pp. 25227-25236.
Ahmad, S., Kanaujia, P.K., Beeson, H.J., Abate, A., Deschler, F., Credgington, D., Steiner, U., Prakash, G.V., Baumberg, J.J.: Strong Photocurrent from Two-Dimensional Excitons in Solution-Processed Stacked Perovskite Semiconductor Sheets. ACS Applied Materials & Interfaces. 7, 25227-25236 (2015).
Ahmad, Shahab, Kanaujia, Pawan K., Beeson, Harry J., Abate, Antonio, Deschler, Felix, Credgington, Dan, Steiner, Ullrich, Prakash, G. Vijaya, and Baumberg, Jeremy J. “Strong Photocurrent from Two-Dimensional Excitons in Solution-Processed Stacked Perovskite Semiconductor Sheets”. ACS Applied Materials & Interfaces 7.45 (2015): 25227-25236.