Hanusch, Fabian C. ; Wiesenmayer, Erwin ; Mankel, Eric ; Binek, Andreas ; Angloher, Philipp ; Fraunhofer, Christina ; Giesbrecht, Nadja ; Feckl, Johann M. ; Jaegermann, Wolfram ; Johrendt, Dirk ; Bein, Thomas ; Docampo, Pablo (2014)
Efficient Planar Heterojunction Perovskite Solar Cells Based on Formamidinium Lead Bromide.
In: The Journal of Physical Chemistry Letters, 5 (16)
doi: 10.1021/jz501237m
Article, Bibliographie
Abstract
The development of medium-bandgap solar cell absorber materials is of interest for the design of devices such as tandem solar cells and building-integrated photovoltaics. The recently developed perovskite solar cells can be suitable candidates for these applications. At present, wide bandgap alkylammonium lead bromide perovskite absorbers require a high-temperature sintered mesoporous TiO2 photoanode in order to function efficiently, which makes them unsuitable for some of the above applications. Here, we present for the first time highly efficient wide bandgap planar heterojunction solar cells based on the structurally related formamidinium lead bromide. We show that this material exhibits much longer diffusion lengths of the photoexcited species than its methylammonium counterpart. This results in planar heterojunction solar cells exhibiting power conversion efficiencies approaching 7%. Hence, formamidinium lead bromide is a strong candidate as a wide bandgap absorber in perovskite solar cells.
| Item Type: | Article |
|---|---|
| Erschienen: | 2014 |
| Creators: | Hanusch, Fabian C. ; Wiesenmayer, Erwin ; Mankel, Eric ; Binek, Andreas ; Angloher, Philipp ; Fraunhofer, Christina ; Giesbrecht, Nadja ; Feckl, Johann M. ; Jaegermann, Wolfram ; Johrendt, Dirk ; Bein, Thomas ; Docampo, Pablo |
| Type of entry: | Bibliographie |
| Title: | Efficient Planar Heterojunction Perovskite Solar Cells Based on Formamidinium Lead Bromide |
| Language: | English |
| Date: | 21 August 2014 |
| Publisher: | ACS Publications |
| Journal or Publication Title: | The Journal of Physical Chemistry Letters |
| Volume of the journal: | 5 |
| Issue Number: | 16 |
| DOI: | 10.1021/jz501237m |
| Abstract: | The development of medium-bandgap solar cell absorber materials is of interest for the design of devices such as tandem solar cells and building-integrated photovoltaics. The recently developed perovskite solar cells can be suitable candidates for these applications. At present, wide bandgap alkylammonium lead bromide perovskite absorbers require a high-temperature sintered mesoporous TiO2 photoanode in order to function efficiently, which makes them unsuitable for some of the above applications. Here, we present for the first time highly efficient wide bandgap planar heterojunction solar cells based on the structurally related formamidinium lead bromide. We show that this material exhibits much longer diffusion lengths of the photoexcited species than its methylammonium counterpart. This results in planar heterojunction solar cells exhibiting power conversion efficiencies approaching 7%. Hence, formamidinium lead bromide is a strong candidate as a wide bandgap absorber in perovskite solar cells. |
| Uncontrolled Keywords: | formamidinium lead bromide, FAPbBr3, wide bandgap perovskite, planar heterojunction, crystal structure |
| Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Surface Science 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences |
| Date Deposited: | 26 Feb 2015 10:03 |
| Last Modified: | 29 Mar 2015 16:10 |
| PPN: | |
| Funders: | The authors acknowledge funding from the Bavarian Ministry for the Environment, the Bavarian Network “Solar Technologies Go Hybrid”, and the DFG Excellence Cluster Nanosystems Initiative Munich (NIM)., We acknowledge support from the European Union through award of a Marie Curie Intra-European Fellowship., J. M. Feckl gratefully acknowledges funding from the Dr. Klaus Römer-Stiftung. |
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