Fabrication of silver nanosheets on quartz glass substrates through electroless plating approach
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Silver nanosheets (NSs) have been synthesized by an electroless plating approach using a complexation mechanism of triethanolamine (TEA) and Ag+ to reduce the oxidation–reduction potential difference and slow down the deposition speed of Ag on quartz glass substrates. The synthesized Ag NSs with 500 nm in edge length and 30 nm in thickness stand on the substrates and are dispersed uniformly. The formation mechanism of Ag NSs is proposed. The formation of Ag NSs is attributed to the molar ratio of AgNO3 to TEA, the concentration of AgNO3 and the influence of reaction temperature. This study is important in vertical immobilization Ag NSs on solid substrates, which could provide substrates for catalysis or surface-enhanced Raman scattering.
KeywordsElectroless Plating Quartz Glass Substrate Surface Plasmon Resonance Absorption Band Surface Plasmon Resonance Absorption Peak Electroless Plating Method
The work was supported by the National Natural Science Foundation of China (No. 10804101), the State Key Development Program for Basic Research of China (Grant No. 9140C6805021008), the Science and Technology Development Foundation of the Chinese Academy of Engineering Physics (Grant No. 2010B0401055), the Scholarship Award for Excellent Doctoral Students granted by the Ministry of Education (Grant No. 1343-76140000014), the Hunan Provincial Innovation Foundation for Postgraduates (Grant No. CX2012B114) and the Open-End Fund for the Valuable and Precision Instruments of Central South University (CSUZC2012032).