scholarly journals Concentration, Temperature and Molecular Weight Dependent on Optical Properties of Poly (Vinyl Pyrrolidone) in Chloroform Solutions

2020 ◽  
Vol V9 (07) ◽  
Author(s):  
Zainab O. Ettarhouni ◽  
Keyword(s):  
Molecular Weight ◽  
Optical Properties ◽  
Vinyl Pyrrolidone ◽  
Poly Vinyl Pyrrolidone

Synthesis of perfect silver nanocubes by a simple polyol process

2007 ◽  
Vol 22 (6) ◽  
pp. 1479-1485 ◽  
Author(s):  
Jiejun Zhu ◽  
Caixia Kan ◽  
Xiaoguang Zhu ◽  
Jian-guo Wan ◽  
Min Han ◽  
...  
Keyword(s):  
Optical Properties ◽  
Growth Mechanism ◽  
Edge Length ◽  
Vinyl Pyrrolidone ◽  
Polyol Synthesis ◽  
Synthesis Process ◽  
Silver Nanocubes ◽  
Sharp Edges ◽  
Average Edge Length ◽  
Poly Vinyl Pyrrolidone

In this work, we report on silver nanocubes with perfect shape prepared by a simple poly(vinyl pyrrolidone)-directed polyol synthesis process. The effects of poly(vinyl pyrrolidone)/AgNO3ratio Rand reaction temperature Ton the morphology and size of the products were investigated. Ag nanocubes with an average edge length of 230 nm were obtained successfully with sharp edges and corners under a precise synthesis condition of R= 1 and T= 150 °C. The optical properties of Ag nanocubes show an attractive plasma resonance red-shift with size in a wide spectra region. The growth mechanism of the Ag nanocubes is proposed to be thermodynamically and kinetically controlled.

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