Initial stages of GaAs/Au eutectic alloy formation for the growth of GaAs nanowires

Annealing temperature plays an important role in the formation of an Au-Ga eutectic alloy. The effects of the annealing temperature on gold nanoparticles colloid and substrate surface were studied using AFM, FE-SEM and TEM. At 600oC, the layer of gold colloids particle formed an island in the state...

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Main Authors:	Rosnita, M, Yussof, W, Zuhairi, Zulkafli, O, Samsudi, S
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2012
Online Access:	http://journalarticle.ukm.my/5476/ http://journalarticle.ukm.my/5476/ http://journalarticle.ukm.my/5476/1/12%2520M.%2520Rosnita.pdf

id	ukm-5476
recordtype	eprints
spelling	ukm-54762016-12-14T06:38:33Z http://journalarticle.ukm.my/5476/ Initial stages of GaAs/Au eutectic alloy formation for the growth of GaAs nanowires Rosnita, M Yussof, W Zuhairi, Zulkafli, O Samsudi, S Annealing temperature plays an important role in the formation of an Au-Ga eutectic alloy. The effects of the annealing temperature on gold nanoparticles colloid and substrate surface were studied using AFM, FE-SEM and TEM. At 600oC, the layer of gold colloids particle formed an island in the state of molten eutectic alloy and absorbed evaporated metal-organics to formed nanowire (NW) underneath the alloy. Pit formed on the substrate surface due to the chemical reactions during the annealing process have an impact on the direction of growth of the NW. Without annealing, the NW formed vertically on the GaAs (100) surface. The growth direction depends on the original nucleation facets and surface energy when annealed. When annealed, the wire base is large and curved due to the migration of Ga atoms on the substrate surface towards the tip of the wire and the line tension between the substrate surface and gold particle. Universiti Kebangsaan Malaysia 2012-09 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/5476/1/12%2520M.%2520Rosnita.pdf Rosnita, M and Yussof, W and Zuhairi, and Zulkafli, O and Samsudi, S (2012) Initial stages of GaAs/Au eutectic alloy formation for the growth of GaAs nanowires. Sains Malaysiana, 41 (9). pp. 1133-1138. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Annealing temperature plays an important role in the formation of an Au-Ga eutectic alloy. The effects of the annealing temperature on gold nanoparticles colloid and substrate surface were studied using AFM, FE-SEM and TEM. At 600oC, the layer of gold colloids particle formed an island in the state of molten eutectic alloy and absorbed evaporated metal-organics to formed nanowire (NW) underneath the alloy. Pit formed on the substrate surface due to the chemical reactions during the annealing process have an impact on the direction of growth of the NW. Without annealing, the NW formed vertically on the GaAs (100) surface. The growth direction depends on the original nucleation facets and surface energy when annealed. When annealed, the wire base is large and curved due to the migration of Ga atoms on the substrate surface towards the tip of the wire and the line tension between the substrate surface and gold particle.
format	Article
author	Rosnita, M Yussof, W Zuhairi, Zulkafli, O Samsudi, S
spellingShingle	Rosnita, M Yussof, W Zuhairi, Zulkafli, O Samsudi, S Initial stages of GaAs/Au eutectic alloy formation for the growth of GaAs nanowires
author_facet	Rosnita, M Yussof, W Zuhairi, Zulkafli, O Samsudi, S
author_sort	Rosnita, M
title	Initial stages of GaAs/Au eutectic alloy formation for the growth of GaAs nanowires
title_short	Initial stages of GaAs/Au eutectic alloy formation for the growth of GaAs nanowires
title_full	Initial stages of GaAs/Au eutectic alloy formation for the growth of GaAs nanowires
title_fullStr	Initial stages of GaAs/Au eutectic alloy formation for the growth of GaAs nanowires
title_full_unstemmed	Initial stages of GaAs/Au eutectic alloy formation for the growth of GaAs nanowires
title_sort	initial stages of gaas/au eutectic alloy formation for the growth of gaas nanowires
publisher	Universiti Kebangsaan Malaysia
publishDate	2012
url	http://journalarticle.ukm.my/5476/ http://journalarticle.ukm.my/5476/ http://journalarticle.ukm.my/5476/1/12%2520M.%2520Rosnita.pdf
first_indexed	2023-09-18T19:44:14Z
last_indexed	2023-09-18T19:44:14Z
_version_	1777405792868106240

Initial stages of GaAs/Au eutectic alloy formation for the growth of GaAs nanowires

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