Spectral Measurement of Photon Emission from Individual Gold Nanoparticles Using Scanning Tunneling Microscopy

Автор(ы) S.A. Nepijko1 , A. Chernenkaya1, K. Medjanik1, S.V. Chernov1, A.A. Sapozhnik1 , L.V. Odnodvorets2 , I.Yu. Protsenko2 , W. Schulze3, G. Ertl3, G. Schönhense1

1 Institute of Physics, University of Mainz, 7, Staudingerweg, 55128 Mainz, Germany

2 Sumy State University, 2, Rymskogo-Korsakova St., 40007 Sumy, Ukraine

3 Fritz Haber Institute of the Max Planck Society, 4-6, Faradayweg, 14195 Berlin, Germany

Выпуск Том 8, Год 2016, Номер 2
Даты Получено 19.05.2016, в отредактированной форме – 10.06.2016, опубликовано online – 21.06.2016
Ссылка S.A. Nepijko, A. Chernenkaya, K. Medjanik, et al., J. Nano- Electron. Phys. 8 No 2, 02039 (2016)
DOI 10.21272/jnep.8(2).02039
PACS Number(s) 68.55.Nq, 71.20.Be, 71.20.Eh
Ключевые слова Electron-photon spectroscopy, Gold nanoparticle (3) , Scanning tunneling microscope (STM).
Аннотация The light emission spectra of individual Au nanoparticles induced by a scanning tunneling microscope (STM) have been investigated. Two-dimensional ensembles of tunnel-coupled Au particles were prepared by thermal evaporation onto a native oxide silicon wafer in ultrahigh vacuum (10 – 9 mbar). Our STM measurements show a single peak at photon energy 1.6 eV in the tunneling mode and two peaks at 2.2 eV (connected with the Mie plasmon) and 1.45 eV (a new peak which was not discussed in literature before) in the field emission mode.

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