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The nonlinear optical properties of silver nanoparticles decorated glass obtained from sintering mesoporous powders
Author(s) -
Zhao Yuye,
Dong Ningning,
Qiu Pengpeng,
Jiang Wan,
Wang Jun,
Wang Lianjun,
Gu Shijia,
Zhou Beiying,
Luo Wei
Publication year - 2021
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.17651
Subject(s) - materials science , sintering , spark plasma sintering , nanoparticle , mesoporous silica , particle size , composite material , dispersion (optics) , chemical engineering , porous glass , mesoporous material , particle (ecology) , silver nanoparticle , nanotechnology , porosity , optics , biochemistry , chemistry , physics , oceanography , geology , engineering , catalysis
Silver nanoparticles (Ag NPs) have excellent third‐order nonlinear optical properties but it is still difficult to obtain silica glass containing Ag NPs with homogenous dispersion and small particle size. Herein, silica glass with homogenously distributed Ag NPs in its matrix was derived from sintering a famous type of mesoporous silica (FDU‐12) encapsulated with Ag NPs (Ag NPs/FDU‐12) through Spark Plasma Sintering (SPS) technique. Benefited from the low‐temperature sintering property of the Ag NPs/FDU‐12 powders (~930°C within 5 min), the Ag NPs can be directly trapped in the derived silica glass with small particle size (<3.0 nm) and without mass loss. The as‐prepared Ag NPs/glass showed a typical reverse saturable absorption curve, which is measured via the Z‐scan method by using a 532 nm nanosecond laser. The nonlinear coefficient β and imaginary third‐order susceptibility Im χ eff 3were calculated as 11.46 cm/GW and 2.22 × 10 −12 esu, respectively, indicating the excellent third‐order nonlinear optical properties of the Ag NPs/glass. This study demonstrates a great potential for preparing silica glasses functionalized with well dispersed ultrafine functional particles, which is appealing in photonic field.