Tesi etd-03102023-142725 |
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Tipo di tesi
Tesi di laurea magistrale
Autore
SCATTAREGGIA MARCHESE DI GIOVANNI, FABIO
URN
etd-03102023-142725
Titolo
Indium oxide nanoparticles with tolopogical tin doping: structural and electronic study with optical and solid state NMR spectroscopies.
Dipartimento
CHIMICA E CHIMICA INDUSTRIALE
Corso di studi
CHIMICA
Relatori
relatore Prof. Pineider, Francesco
relatore Prof. Geppi, Marco
relatore Prof. Geppi, Marco
Parole chiave
- ITO
- Nanoparticles
- Solid State NMR
Data inizio appello
30/03/2023
Consultabilità
Non consultabile
Data di rilascio
30/03/2093
Riassunto
The present work is a study of the structural and electronic properties of Sn(IV) doped In(III) oxide
nanoparticles. Thanks to a continuous growth synthesis the dopant was placed at various radial positions
within the nanocrystal and core@shell nanostructures were made up. Moreover, the analysis of optical
extinction of NIR spectra and solid state NMR characterisation, allowed us to rationalise the impact of
different dopant distribution on the free electric charge densities of the NPs. Finally, we demonstrated that
photodoping with UV light enables the modulation of the LSPR absorption making these systems suitable
for tunable optoelectronics and sensors.
nanoparticles. Thanks to a continuous growth synthesis the dopant was placed at various radial positions
within the nanocrystal and core@shell nanostructures were made up. Moreover, the analysis of optical
extinction of NIR spectra and solid state NMR characterisation, allowed us to rationalise the impact of
different dopant distribution on the free electric charge densities of the NPs. Finally, we demonstrated that
photodoping with UV light enables the modulation of the LSPR absorption making these systems suitable
for tunable optoelectronics and sensors.
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