Plasmonic Structure Enhanced Exciton Generation at the Interface between the Perovskite Absorber and Copper Nanoparticles

Sheng Hsiung Chang, Kuen Feng Lin, Chien Hung Chiang, Sheng Hui Chen, Chun Guey Wu

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The refractive index and extinction coefficient of a triiodide perovskite absorber (TPA) were obtained by fitting the transmittance spectra of TPA/PEDOT:PSS/ITO/glass using the transfer matrix method. Cu nanoplasmonic structures were designed to enhance the exciton generation in the TPA and to simultaneously reduce the film thickness of the TPA. Excitons were effectively generated at the interface between TPA and Cu nanoparticles, as observed through the 3D finite-difference time-domain method. The exciton distribution is advantageous for the exciton dissociation and carrier transport.

Original languageEnglish
Article number128414
JournalScientific World Journal
Volume2014
DOIs
StatePublished - 2014

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