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Large Enhancement of Upconversion Luminescence of NaYF 4 :Yb 3+ /Er 3+ Nanocrystal by 3D Plasmonic Nano‐Antennas
Author(s) -
Zhang Weihua,
Ding Fei,
Chou Stephen Y.
Publication year - 2012
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/adma.201200220
Subject(s) - luminescence , materials science , nanocrystal , plasmon , photon upconversion , optoelectronics , doping , surface plasmon resonance , nanotechnology , nanoparticle
Plasmon‐enhanced upconversion luminescence of NaYF4: Yb 3+ /Er 3+ co‐doped nanocrystals is investigated using a 3D plasmonic antenna architecture: a disk‐coupled dots‐on‐pillar antenna array (D2PA). By tuning and optimizing the resonance frequency of the D2PA structure for upconversion luminescence, a 310‐fold luminescence enhancement and an 8‐fold reduction of the luminescence decay time are observed.