The preparation of high concentration silver nanoplates with liquid-phase reduction method
Silver nanoplates,also referred to as nanoprisms or nanodisks,are two-dimensional plasmonic nanostructures that have attracted intensive attention due to their strong shape-dependent optical properties and related applications.In order to obtain the silver nanoplates with high concentration,the liquid-phase reduction method was adopted.Silver nanoparticles colloid was obtained by reducing the high molar concentration of AgNO3 (up to 3.17 M) with the hydrazine hydrate (H4N2 ? H2O) as reductant in the presence of polyethylene pyrrole (PVP) as the protectant.0.5 M Sodium Citrate is introduced into the precursor aqueous which containing AgNO3 and PVP,the molar ratio of PVP to AgNO3 was tuned from 0.64 to 1.5.When molar is 1.5,the mainly particles are silver nanospheres,on the contrary,the nanospheres are transferred into nanoplates as the ratio decreased gradually,until the mainly product are nanoplates.The constituent of the silver nano-clusters was established by performing the Powder X-ray diffraction.The nano-silver dispersion with average diameter is about 113.2 nm were finally deserved.The size distribution of the silver nanoparticles is recorded by the Zeta potential analyzer.Scanning electron microscope (SEM) was used to characterize the morphology of the nano-silver particles.The silver content is about 3%.Nano-silver colloid is obtained and purified by centrifugation and wash with deionized water and ethanol.Then,water-based silver conductive ink is obtained by adding some amount deionized water and additives and adjusted parameters,which could be widely used in printed electronics.
Silver nanoplates PVP conductivity
FU Jilan MO Lixin LI Weiwei LI Wenbo RAN Jun FAN Xinming LI Luhai
Printable Electronic Research Center, Key Lab of Printing and Packaging Material and Technology,Beijing Institute of Graphic Communication, Beijing 102600, China
国际会议
中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)
杭州
英文
1-5
2012-11-04（万方平台首次上网日期，不代表论文的发表时间）