Mechanism Studies on the Superior Optical Limiting Observed in Graphene Oxide Covalently Functionalized with Upconversion NaYF 4 :Yb 3+ /Er 3+  Nanoparticles | Zendy

He Tingchao | Zendy; Wei Wei | Zendy; Ma Lin | Zendy; Chen Rui | Zendy; Wu Shixin | Zendy; Zhang Hua | Zendy; Yang Yanhui | Zendy; Ma Jan | Zendy; Huang Ling | Zendy; Gurzadyan Gagik G. | Zendy; Sun Handong | Zendy

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Mechanism Studies on the Superior Optical Limiting Observed in Graphene Oxide Covalently Functionalized with Upconversion NaYF 4 :Yb 3+ /Er 3+ Nanoparticles

Author(s) -

He Tingchao,

Wei Wei,

Ma Lin,

Chen Rui,

Wu Shixin,

Zhang Hua,

Yang Yanhui,

Ma Jan,

Huang Ling,

Gurzadyan Gagik G.,

Sun Handong

Publication year - 2012

Publication title -

small

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.785

H-Index - 236

eISSN - 1613-6829

pISSN - 1613-6810

DOI - 10.1002/smll.201200249

Subject(s) - graphene , photon upconversion , nanoparticle , nanocomposite , covalent bond , materials science , oxide , absorption (acoustics) , chemical engineering , nanotechnology , photochemistry , optoelectronics , chemistry , organic chemistry , luminescence , composite material , engineering , metallurgy

Superior optical limiting (OL) characteristics and mechanisms are explored in a novel nanocomposite made from graphene oxide (GO) and NaYF 4 :Yb 3+ /Er 3+ nanoparticles via covalent chemical bonding. Due to the synergistic effect of enhanced nonlinear scattering, two‐photon absorption, and efficient energy transfer between NaYF 4 :Yb 3+ /Er 3+ nanoparticles and GO, the nanocomposite displays dramatically improved OL effects compared to either GO or NaYF 4 :Yb 3+ /Er 3+ nanoparticles, making it a very promising material for practical OL devices.

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