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Improvement in photovoltaic performance of perovskite solar cells by interface modification and co-sensitization with novel asymmetry 7-coumarinoxy-4-methyltetrasubstituted metallophthalocyanines.
- Source :
-
Synthetic Metals . Oct2016, Vol. 220, p187-193. 7p. - Publication Year :
- 2016
-
Abstract
- We report for the first time on both interface modification and co-sensitization by using novel asymmetry 7-coumarinoxy-4-methyltetrasubstituted metallophthalocyanines in a heterojunction solar cell. The short circuit photocurrent of mesoscopic heterojunction solar cell exhibits an improvement of more than 8%, while the PCEs give an increase of more than 28% compared to CH 3 NH 3 PbI 3 -sensitized devices, and the power conversion efficiencies reached at 13.96% most. The introduction of novel asymmetry metallophthalocyanines can not only favor crystal growth of CH 3 NH 3 PbI 3 leading to a better carrier collection and retardation of charge recombination but also improve the light harvesting ability of perovskite resulting in a faster electron injection. Moreover, it can also reduce the hysteresis. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03796779
- Volume :
- 220
- Database :
- Academic Search Index
- Journal :
- Synthetic Metals
- Publication Type :
- Academic Journal
- Accession number :
- 117836385
- Full Text :
- https://doi.org/10.1016/j.synthmet.2016.06.003