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Ionization Energy and Energy Gap Structure of MoSI Molecular Wires: Kelvin Probe, Ultraviolet Photoelectron Spectroscopy, and Cyclic Voltammetry Measurements (CROSBI ID 270483)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Strojnik, Martin ; Omerzu, Ales ; Majkić, Aleksej ; Mihailovic, Peter M. ; Lukan, Junos ; Bavdek, Gregor ; Bratina, Gvido ; Cvetko, Dean ; Topolovsek, Peter ; Mihailovic, Dragan Ionization Energy and Energy Gap Structure of MoSI Molecular Wires: Kelvin Probe, Ultraviolet Photoelectron Spectroscopy, and Cyclic Voltammetry Measurements // Langmuir, 27 (2011), 8; 4296-4299. doi: 10.1021/la1050767

Podaci o odgovornosti

Strojnik, Martin ; Omerzu, Ales ; Majkić, Aleksej ; Mihailovic, Peter M. ; Lukan, Junos ; Bavdek, Gregor ; Bratina, Gvido ; Cvetko, Dean ; Topolovsek, Peter ; Mihailovic, Dragan

engleski

Ionization Energy and Energy Gap Structure of MoSI Molecular Wires: Kelvin Probe, Ultraviolet Photoelectron Spectroscopy, and Cyclic Voltammetry Measurements

The work function W of Mo6S3I6 molecular nanowires is determined by Kelvin probe (KP) measurements, UV photoelectron spectroscopy (UPS), and cyclic voltammetry (CV). The values obtained by all three methods agree well, giving W = 4.8 +/- 0.1 eV. CV measurements also give a gap between the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) of Eg = 1.2 +/- 0.1 eV, in agreement with recent optical measurements, but in disagreement with theoretical calculations, which predictict the materials to be a metal. The electronic structure of Mo6S3I6 suggests use of the material in applications such as bulk heterostructure photovoltaics and transparent electrodes and for molecular electronics devices.

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Podaci o izdanju

27 (8)

2011.

4296-4299

objavljeno

0743-7463

10.1021/la1050767

Povezanost rada

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Fizika, Interdisciplinarne prirodne znanosti

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