| Autor: |
Sygletou, Maria, Benedetti, Stefania, di Bona, Alessandro, Canepa, Maurizio, Bisio, Francesco |
| Rok vydání: |
2022 |
| Předmět: |
|
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1021/acs.jpcc.1c07567 |
| Popis: |
Understanding the interaction between plasmonic nanoparticles and transparent conductive oxides is instrumental to the development of next-generation photovoltaic, opto-electronic and energy-efficient solid-state lighting devices. We investigated the optical response of hybrid media composed of gold nanoparticles deposited on aluminum-doped zinc oxide thin films with varying doping concentration by spectroscopic ellipsometry. The dielectric functions of bare AZO were addressed first, revealing doping-induced effects such as the band-gap shift and the appearance of free carriers. In the hybrid media, a blueshift of the localized surface plasmon resonance of Au NPs as a function of increasing Al-doping of the substrate was observed, ascribed to the occurrence of a charge transfer between the two materials and the doping-dependent variation of the polarizability of the substrate. |
| Databáze: |
arXiv |
| Externí odkaz: |
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