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Plasmonics

, Volume 12, Issue 2, pp 237–244 | Cite as

Plasmonic Perovskite Solar Cells Utilizing Au@SiO2 Core-Shell Nanoparticles

  • Nilesh Kumar Pathak
  • Nikhil Chander
  • Vamsi K. Komarala
  • R. P. Sharma
Article

Abstract

The role of Au@SiO2 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@SiO2 core-shell nanospheres. Au@SiO2 core-shell nanoparticles, with varying shell thickness and core radius, were assumed to be embedded in methylammonium lead triiodide (CH3NH3PbI3) 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@SiO2 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@SiO2 nanoparticles in Au@SiO2-TiO2 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.

Keywords

Perovskite solar cells Plasmonics Core-shell nanoparticles Quasi-static approximation 

Notes

Acknowledgments

NKP and RPS would like to thank the Ministry of New and Renewable Energy (MNRE, Government of India) for the financial support.

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Plasma Simulation Laboratory, Centre for Energy StudiesIndian Institute of Technology DelhiNew DelhiIndia
  2. 2.National Centre for Flexible Electronics, Samtel Centre for Display TechnologiesIndian Institute of Technology KanpurKanpurIndia
  3. 3.Photovoltaic Laboratory, Centre for Energy StudiesIndian Institute of Technology DelhiNew DelhiIndia

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