Low power laser directed deposition of silver thin films

Polycrystalline metalic thin films are widely used in many applications such as magnetic storage media, in micro-nano-electronic devices and as protective or decorative coatings. Silver thin films, specifically, are also indispensable for optical applications, due to their high reflectance over a wi...

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Main Author: Li, Jia.
Other Authors: Wong Chee Cheong
Format: Final Year Project
Language:English
Published: 2010
Subjects:
Online Access:http://hdl.handle.net/10356/35562
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-355622023-03-04T15:36:45Z Low power laser directed deposition of silver thin films Li, Jia. Wong Chee Cheong School of Materials Science and Engineering DRNTU::Engineering::Materials Polycrystalline metalic thin films are widely used in many applications such as magnetic storage media, in micro-nano-electronic devices and as protective or decorative coatings. Silver thin films, specifically, are also indispensable for optical applications, due to their high reflectance over a wide spectral range and are able to support a propagating surface Plasmon polariton (SPP) in an attenuated total reflection (ATR) sensor as well. In this report, the novel method for the deposition of silver thin films through the illumination of low power laser in a solution containing citrate and silver ions will be carefully described. With this method silver can be deposited on a numerous of substrates such as metals, semiconductor, polymers or even composites. In this report, the effects of applied light dosage (energy), chemical concentration and wavelength of lasers on the thin film deposits were investigated to support a proposed novel mechanism on the nucleation and growth of such Ag films and to outline the different conditions under which surface nucleation will be favored. Lastly, to provide guidance to future operational control, an empirical modeling for this novel mechanism is also proposed. Bachelor of Engineering (Materials Engineering) 2010-04-21T01:37:22Z 2010-04-21T01:37:22Z 2010 2010 Final Year Project (FYP) http://hdl.handle.net/10356/35562 en Nanyang Technological University 47 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Materials
spellingShingle DRNTU::Engineering::Materials
Li, Jia.
Low power laser directed deposition of silver thin films
description Polycrystalline metalic thin films are widely used in many applications such as magnetic storage media, in micro-nano-electronic devices and as protective or decorative coatings. Silver thin films, specifically, are also indispensable for optical applications, due to their high reflectance over a wide spectral range and are able to support a propagating surface Plasmon polariton (SPP) in an attenuated total reflection (ATR) sensor as well. In this report, the novel method for the deposition of silver thin films through the illumination of low power laser in a solution containing citrate and silver ions will be carefully described. With this method silver can be deposited on a numerous of substrates such as metals, semiconductor, polymers or even composites. In this report, the effects of applied light dosage (energy), chemical concentration and wavelength of lasers on the thin film deposits were investigated to support a proposed novel mechanism on the nucleation and growth of such Ag films and to outline the different conditions under which surface nucleation will be favored. Lastly, to provide guidance to future operational control, an empirical modeling for this novel mechanism is also proposed.
author2 Wong Chee Cheong
author_facet Wong Chee Cheong
Li, Jia.
format Final Year Project
author Li, Jia.
author_sort Li, Jia.
title Low power laser directed deposition of silver thin films
title_short Low power laser directed deposition of silver thin films
title_full Low power laser directed deposition of silver thin films
title_fullStr Low power laser directed deposition of silver thin films
title_full_unstemmed Low power laser directed deposition of silver thin films
title_sort low power laser directed deposition of silver thin films
publishDate 2010
url http://hdl.handle.net/10356/35562
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