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  Probing the luminescence of single Eu2O3 nano-islands on MgO(001) with scanning tunneling microscopy

Stavale, F., Nilius, N., & Freund, H.-J. (2012). Probing the luminescence of single Eu2O3 nano-islands on MgO(001) with scanning tunneling microscopy. Applied Physics Letters, 101(1): 013109. doi:10.1063/1.4731638.

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 Creators:
Stavale, Fernando1, Author           
Nilius, Niklas1, Author           
Freund, Hans-Joachim1, Author           
Affiliations:
1Chemical Physics, Fritz Haber Institute, Max Planck Society, ou_24022              

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 Abstract: STM imaging and cathodoluminescence spectroscopy are used to explore the morphology and optical properties of Eu2O3 nano-islands grown on MgO(001) thin films. The global emission properties are governed by intense photon peaks at around 600 nm, arising from forced-dipole transitions in the 4f-state manifold of Eu3+ ions placed in a non-centrosymmetric crystal field. Local optical spectra obtained in the tunneling mode of the STM reveal that the Eu2O3 islands are responsible for the distinct optical response and not isolated Eu3+ ions inside the MgO matrix. Our work demonstrates that thin-film model systems can be used to elucidate fundamental properties of Eu-containing phosphors on the nanometer scale.

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Language(s): eng - English
 Dates: 2012-04-132011-06-122012-07-032012-07-02
 Publication Status: Issued
 Pages: 3
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1063/1.4731638
 Degree: -

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Title: Applied Physics Letters
Source Genre: Journal
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Publ. Info: Melville, NY : American Institute of Physics
Pages: - Volume / Issue: 101 (1) Sequence Number: 013109 Start / End Page: - Identifier: ISSN: 0003-6951
CoNE: https://pure.mpg.de/cone/journals/resource/954922836223