Enhanced operational stability through interfacial modification by active encapsulation of perovskite solar cells
NAGIOS: RODERIC FUNCIONANDO

Enhanced operational stability through interfacial modification by active encapsulation of perovskite solar cells

DSpace Repository

Enhanced operational stability through interfacial modification by active encapsulation of perovskite solar cells

Show simple item record

dc.contributor.author Ghosh, Sudeshna
dc.contributor.author Singh, Roja
dc.contributor.author Subbiah, Anand S.
dc.contributor.author Boix, Pablo P.
dc.contributor.author Mora Seró, Iván
dc.contributor.author Sarkar, Shaibal K.
dc.date.accessioned 2021-04-28T15:13:35Z
dc.date.available 2021-04-28T15:13:35Z
dc.date.issued 2020
dc.identifier.uri https://hdl.handle.net/10550/78964
dc.description.abstract Encapsulates are, in general, the passive components of any photovoltaic device that provides the required shielding from the externally stimulated degradation. Here we provide comprehensive physical insight depicting a rather non-trivial active nature, in contrast to the supposedly passive, atomic layer deposition (ALD) grown Al2O3 encapsulate layer on the hybrid perovskite [(FA0.83MA0.17)0.95Cs0.05PbI2.5Br0.5] photovoltaic device having the configuration: glass/FTO/SnO2/perovskite/spiro-OMeTAD/Au/(±) Al2O3. By combining various electrical characterization techniques, our experimental observations indicate that the ALD chemistry produces considerable enhancement of the electronic conductivity of the spiro-OMeTAD hole transport medium (HTM), resulting in electronic modification of the perovskite/HTM interface. Subsequently, the modified interface provides better hole extraction and lesser ionic accumulation at the interface, resulting in a significant lowering of the burn-in decay and nearly unchanged charge transport parameters explicitly under the course of continuous operation. Unlike the unencapsulated device, the modified electronic structure in the Al2O3 coated device is essentially the principal reason for better performance stability. Data presented in this communication suggest that the ionic accumulation at the spiro-OMeTAD/perovskite interface triggers the device degradation in the uncoated devices, which is eventually followed by material degradation, which can be avoided by active encapsulation.
dc.language.iso eng
dc.relation.ispartof Applied Physics Letters, 2020, vol. 116, p. 113502
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Ghosh, Sudeshna Singh, Roja Subbiah, Anand S. Boix, Pablo P. Mora Seró, Iván Sarkar, Shaibal K. 2020 Enhanced operational stability through interfacial modification by active encapsulation of perovskite solar cells Applied Physics Letters 116 113502
dc.subject Electroquímica
dc.subject Cèl·lules fotoelèctriques
dc.subject Materials
dc.title Enhanced operational stability through interfacial modification by active encapsulation of perovskite solar cells
dc.type info:eu-repo/semantics/article
dc.date.updated 2021-04-28T15:13:35Z
dc.identifier.doi https://doi.org/10.1063/1.5144038
dc.identifier.idgrec 146195

View       (1.493Mb)

This item appears in the following Collection(s)

Show simple item record

Search DSpace

Advanced Search

Browse

Statistics