Back to Search
Start Over
Sputtered rear electrode with broadband transparency for perovskite solar cells.
- Source :
-
Solar Energy Materials & Solar Cells . Oct2015, Vol. 141, p407-413. 7p. - Publication Year :
- 2015
-
Abstract
- Due to their high efficiencies combined with simple and cost-effective device fabrication, perovskite solar cells are promising candidates as top cells in tandem devices. For this application, the perovskite solar cell must be highly transparent at near-infrared wavelengths such that sufficient light is transmitted to the narrow-bandgap bottom cell. We demonstrate perovskite solar cells featuring a sputtered amorphous indium zinc oxide (IZO) layer as broadband transparent rear electrode. This electrode absorbs less than 3% in the 400–1200 nm wavelength range, while having a sheet resistance of 35 Ω / sq . We show over 9% efficient semitransparent perovskite solar cells with IZO sputtered directly on the sensitive organic charge transport layer. The efficiency can be raised up to 10.3% by inserting a thin molybdenum oxide buffer layer, mitigating sputter damage to the underlying organic layer. These cells show more than 60% average transmittance in the 800–1200 nm wavelength range, which makes them suitable top-cell candidates for tandem devices. Finally, we discuss the performance potential of this highly transparent rear electrode for four-terminal tandem devices. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SPUTTERING (Physics)
*PEROVSKITE
*SOLAR cells
*NANOFABRICATION
*ZINC oxide
Subjects
Details
- Language :
- English
- ISSN :
- 09270248
- Volume :
- 141
- Database :
- Academic Search Index
- Journal :
- Solar Energy Materials & Solar Cells
- Publication Type :
- Academic Journal
- Accession number :
- 108551013
- Full Text :
- https://doi.org/10.1016/j.solmat.2015.06.024