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RESEARCH PRODUCT

Plasmonic modes in molybdenum ultra-thin films suitable for hydrogenated amorphous silicon thin film solar cells

N. CostaS. LombardoM. FotiFabio PrincipatoA. BattagliaC. TringaliG. CannellaCosimo Gerardi

subject

Amorphous siliconMaterials sciencebusiness.industrychemistry.chemical_elementThin Film PhotovoltaicsThin Film PhotovoltaicPlasmonicSurface plasmon polaritonThin Film Photovoltaics;Light Trapping; Plasmonics;Hydrogenated Amorphous Siliconchemistry.chemical_compoundHydrogenated Amorphous SiliconEnergy(all)chemistryMolybdenumAttenuated total reflectionOptoelectronicsPlasmonicsPlasmonic solar cellThin filmbusinessPlasmonLight TrappingTransparent conducting film

description

We have recently demonstrated that molybdenum ultra-thin films interposed between hydrogenated amorphous silicon (a-Si:H) and SnO2:F transparent conductive oxide (TCO) in thin film solar cells show light trapping effects which enhance the solar cells performances. The effect of this improvement may be attributed to surface plasmon polariton (SPP) modes excited at the molybdenum interface by the solar radiation. In this paper we show direct evidence of such SPP modes in the case of the molybdenum/air interface by using the attenuated total reflection (ATR) technique, pioneered by Kretschmann, and we evaluate the dielectric constant of molybdenum at 660 nm. (C) 2013 The Authors. Published by Elsevier Ltd.

10.1016/j.egypro.2013.12.030https://publications.cnr.it/doc/300836