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<strong>The growth of the silver nanoparticles on the mesoporous silicon and macroporous silicon: A comparative study</strong>

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Title Statement <strong>The growth of the silver nanoparticles on the mesoporous silicon and macroporous silicon: A comparative study</strong>
 
Added Entry - Uncontrolled Name Alwan, Alwan Mohammed; University of Technology
Yousif, Ali Ahmed; Al-Mustansiriyah university
Wali, Layla Alag; Al-Mustansiriyah University
Department of Applied Sciences/University of Technology
 
Uncontrolled Index Term Porous silicon; Silver nanoparticles; Immersion plating; SERS
 
Summary, etc. Two porous silicon (PS) layers, namely mesoPS and macroPS have been prepared by electrochemical etching (ECE) and photo–electrochemical etching (PECE) processes, respectively. The surface morphology of mesoPS and macroPS reflects a different form of morphology. Silver nanoparticles (AgNPAs) have been obtained through immersion of PS samples in AgNO<sub>3</sub> solution. The mechanism of Ag growth depends on the substrate morphology. In the case of using mesoPS substrate, the AgNPAs have sizes ranging from 0.25 to 2.25 µm, so they can’t enter inside pores and therefore they aggregate on the mesoPS surface, while by using macroPS substrate, they have sizes ranging from 0.1 to 1.5 µm, decorate the inner of the pores and the separate Ag nanoaggregates form on the macroPS surface. The highest SERS has been obtained for AgNPAs/macroPS substrate rather than AgNPAs/mesoPS substrate. The enhancement factor (EF) values achieved by using AgNPAs deposited on macroPS and mesoPS substrates are about (1.8×10<sup>6</sup>) and (3.2×10<sup>4</sup>), respectively.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2017-11-22 10:02:31
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/15477
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 55, ##issue.no## 11 (2017): Indian Journal of Pure & Applied Physics
 
Language Note en
 
Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJPAP/article/download/15477/46318
http://op.niscair.res.in/index.php/IJPAP/article/download/15477/46319
http://op.niscair.res.in/index.php/IJPAP/article/download/15477/46321
http://op.niscair.res.in/index.php/IJPAP/article/download/15477/46324
http://op.niscair.res.in/index.php/IJPAP/article/download/15477/46325
http://op.niscair.res.in/index.php/IJPAP/article/download/15477/46326
http://op.niscair.res.in/index.php/IJPAP/article/download/15477/46335
 
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