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Inhomogeneous Photon Emission Properties of Self‐Assembled Metallic Nanocrystals
Author(s) -
Gusev A. O.,
Taleb A.,
Silly F.,
Charra F.,
Pileni M.P.
Publication year - 2000
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200011)12:21<1583::aid-adma1583>3.0.co;2-f
Subject(s) - materials science , nanocrystal , aggregation induced emission , metal , self assembly , nanotechnology , chemical engineering , optics , metallurgy , fluorescence , physics , engineering
Nanocrystal particle mobility and quenching of photon emission are reported to be correlated. During a study of photon emission from self‐organized arrays of nanocrystals induced by interaction with the tip of a scanning tunneling microscope (STM), a comparison of photon maps with STM images revealed large variations in photon emission efficiency depending on how tightly a nanoparticle is embedded in the hexagonal network. This quenching–mobility correlation is explained in terms of electron relaxation processes involving the nanocrystals' surface phonon modes.