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Optimizing the interface between hole transporting material and nanocomposite for highly efficient perovskite solar cells
- Source :
- Nanomaterials, Volume 9, Issue 11, Nanomaterials, Vol 9, Iss 11, p 1627 (2019)
- Publication Year :
- 2019
-
Abstract
- The performances of organometallic halide perovskite-based solar cells severely depend on the device architecture and the interface between each layer included in the device stack. In particular, the interface between the charge transporting layer and the perovskite film is crucial, since it represents both the substrate where the perovskite polycrystalline film grows, thus directly influencing the active layer morphology, and an important site for electrical charge extraction and/or recombination. Here, we focus on engineering the interface between a perovskite-polymer nanocomposite, recently developed by our group, and different commonly employed polymeric hole transporters, namely PEDOT: PSS [poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)], PEDOT, PTAA [poly(bis 4-phenyl}{2,4,6-trimethylphenyl}amine)], Poly-TPD [Poly(N,N&prime<br />bis(4-butylphenyl)-N,N&prime<br />bis(phenyl)-benzidine] Poly-TPD, in inverted planar perovskite solar cell architecture. The results show that when Poly-TPD is used as the hole transfer material, perovskite film morphology improved, suggesting an improvement in the interface between Poly-TPD and perovskite active layer. We additionally investigate the effect of the Molecular Weight (MW) of Poly-TPD on the performance of perovskite solar cells. By increasing the MW, the photovoltaic performances of the cells are enhanced, reaching power conversion efficiency as high as 16.3%.
- Subjects :
- polymeric hole transporters
starch composite
Nanocomposite
Materials science
General Chemical Engineering
Energy conversion efficiency
Solar cell
Perovskite solar cell
Substrate (electronics)
Interface
Starch composite
Article
Polymeric hole transporter
Active layer
lcsh:Chemistry
interfaces
lcsh:QD1-999
Chemical engineering
PEDOT:PSS
organometallic halide perovskite
solar cells
General Materials Science
Layer (electronics)
Organometallic halide perovskite
Perovskite (structure)
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Nanomaterials, Volume 9, Issue 11, Nanomaterials, Vol 9, Iss 11, p 1627 (2019)
- Accession number :
- edsair.doi.dedup.....a5d9533e1cea85a4c5edc53a406140ed