NDLI: Plasmonic Perovskite Solar Cells Utilizing Au@SiO$

Content Provider	Springer Nature Link
Author	Pathak, Nilesh Kumar Chander, Nikhil Komarala, Vamsi K. Sharma, R. P.
Copyright Year	2016
Abstract	The role of Au@SiO$_{2}$ core-shell nanoparticles on optical properties of perovskite solar cells has been explored using both the theoretical computations and the experiments. A quasi-static model is used to study the surface plasmon resonances (SPRs) of Au@SiO$_{2}$ core-shell nanospheres. Au@SiO$_{2}$ core-shell nanoparticles, with varying shell thickness and core radius, were assumed to be embedded in methylammonium lead triiodide (CH$_{3}$NH$_{3}$PbI$_{3}$) perovskite active layer. Enhanced absorption in the active layer is obtained due to the near-field plasmonic effect of the embedded core-shell nanoparticles. Theoretical modelling shows that a shell thickness of 1 nm and core diameter of 20 nm provide absorption enhancement in the orange-red region of the electromagnetic spectrum. Experiments performed using ∼20-nm-sized Au@SiO$_{2}$ core-shell nanoparticles (with a shell thickness of ∼1 nm) clearly demonstrate the enhanced absorption and the resulting enhancement in photocurrent due to the plasmonic effects. An efficiency enhancement of over 18 % is obtained for the best plasmonic perovskite solar cell containing Au@SiO$_{2}$ nanoparticles in Au@SiO$_{2}$-TiO$_{2}$ weight ratio of ∼1 %. Incident photon-to-current conversion efficiency (IPCE) data also showed enhancement in photocurrent for the plasmonic device. The quasi-static modelling approach provides a good correlation between theory and experiment.
Starting Page	237
Ending Page	244
Page Count	8
File Format	PDF
ISSN	15571955
Journal	Plasmonics
Volume Number	12
Issue Number	2
e-ISSN	15571963
Language	English
Publisher	Springer US
Publisher Date	2016-05-24
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Perovskite solar cells Plasmonics Core-shell nanoparticles Quasi-static approximation Biotechnology Nanotechnology Biophysics and Biological Physics Biochemistry
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Biochemistry Biophysics Biotechnology

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