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Plasmon‐Enhanced Silicon Nanowire Array‐Based Hybrid Heterojunction Solar Cells
Author(s) -
Banerjee Debika,
Guo Xiaohang,
Cloutier Sylvain G.
Publication year - 2018
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.201800007
Subject(s) - pedot:pss , materials science , surface plasmon resonance , optoelectronics , heterojunction , plasmon , nanowire , hybrid solar cell , silicon , nanotechnology , photovoltaic system , energy conversion efficiency , nanoparticle , open circuit voltage , silver nanoparticle , polymer solar cell , layer (electronics) , voltage , ecology , physics , quantum mechanics , biology
In the last decade, freestanding, single crystal silicon nanowires (SiNWs) have attracted significant attention as a potential material for low‐cost optoelectronic devices. In this paper, we demonstrate how strong localized surface plasmon modes, induced using silver nanoparticles, can be used to achieve significant improvement in a simple hybrid organic–inorganic photovoltaic device between n‐type silicon nanowires and poly(3,4‐ethylenedioxythiophene):poly‐(styrenesulfonate) (PEDOT:PSS). At photon energies above plasmon resonance, metallic nanoparticle‐induced absorption leads to a dramatic reduction of the reflectivity and we report a significant improvement in both the short circuit current density ( J sc ) and the open circuit voltage ( V oc ). This leads to an overall 52% increase in the power conversion efficiencies (PCEs) of the photovoltaic devices when decorating the SiNWs with silver nanoparticles prior to PEDOT:PSS deposition.