Application of Au@SiO2 plasmonic nanoparticles at interface of TiO2 mesoporous layers in perovskite solar cells

AuthorsNaemeh Aeineh, Nafiseh Sharifi and Abbas Behjat
JournalInternational Journal of Optics and Photonics
Paper TypeFull Paper
Published At2018
Journal GradeScientific - research
Journal TypeTypographic
Journal CountryIran, Islamic Republic Of

Abstract

To investigate the plasmonic effect in perovskite solar cells, the effect of depositing Au@SiO2 nanoparticles on the top and the bottom of mesoporous TiO2 layers was studied. First, Au@SiO2 nanoparticles were synthesized. The particles were then deposited at the different interfaces of mesoporous TiO2 layers. Although the two structures show approximately similar optical absorption, only cells with Au@SiO2 nanoparticles deposited at the bottom of the mesoporous TiO2 layers demonstrated an improved photocurrent performance compared to the reference cells. This structure shows a short-circuit current density (JSC) of 20.7 mA/cm2 and open circuit voltage of 1081 mV. This enhancement may be attributed either to the interface surface engineering or plasmonic resonance of Au@SiO2 nanoparticles depends to the NPs size and position

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