The effect of Al(NO3)3 concentration on the formation of AuNPs using low temperature hydrothermal reaction for memory application

Distribution of gold nanoparticles (AuNPs) on a substrate becomes crucial in nanotechnology applications. This work describes a route to fabricate AuNPs directly on silicon substrates by using an aluminum template in hydrothermal reaction at 80°C for 1 h. The effect of aluminum nitrate (Al(NO3)3) co...

Full description

Bibliographic Details
Main Authors: Ng, S.A., K.A. Razak, Cheong, K.Y., Aw, K.C.
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2016
Online Access:http://journalarticle.ukm.my/10179/
http://journalarticle.ukm.my/10179/
http://journalarticle.ukm.my/10179/1/06%20S.A.%20Ng%20.pdf
id ukm-10179
recordtype eprints
spelling ukm-101792017-03-06T08:00:55Z http://journalarticle.ukm.my/10179/ The effect of Al(NO3)3 concentration on the formation of AuNPs using low temperature hydrothermal reaction for memory application Ng, S.A. K.A. Razak, Cheong, K.Y. Aw, K.C. Distribution of gold nanoparticles (AuNPs) on a substrate becomes crucial in nanotechnology applications. This work describes a route to fabricate AuNPs directly on silicon substrates by using an aluminum template in hydrothermal reaction at 80°C for 1 h. The effect of aluminum nitrate (Al(NO3)3) concentration in the hydrothermal bath was investigated. The properties of AuNPs were studied using field-emission scanning electron microscope (FESEM), x-ray diffractometer (XRD) and semiconductor characterization system (SCS). Two distinct sizes of AuNPs were observed by FESEM. XRD analysis proved the formation of AuNPs directly on the substrate. AuNPs were embedded between polymethylsilsesquioxane (PMSSQ) in order to investigate their effect on memory properties. The sample grown in 0.1 M Al(NO3)3 exhibited the largest hysteresis window (2.6 V) and the lowest Vth (2.2 V) to turn ‘ON’ the memory device. This indicated that good distribution of FCC structure AuNPs with 80±4 nm and 42±7 nm of large and small particles produced better charge storage capability. Charge transport mechanisms of AuNPs embedded in PMSSQ were explained in details whereby electrons from Si are transported across the barrier by thermionic effects via field-assisted lowering at the Si-PMSSQ interface with the combination of the Schottky and Poole Frenkel emission effect in Region 1. Trapped charge limited current (TCLC) and space charge limited current (SCLC) transport mechanism occurred in Region 2 and Region 3. Penerbit Universiti Kebangsaan Malaysia 2016-08 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/10179/1/06%20S.A.%20Ng%20.pdf Ng, S.A. and K.A. Razak, and Cheong, K.Y. and Aw, K.C. (2016) The effect of Al(NO3)3 concentration on the formation of AuNPs using low temperature hydrothermal reaction for memory application. Sains Malaysiana, 45 (8). pp. 1213-1219. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid45bil8_2016/KandunganJilid45Bil8_2016.html
repository_type Digital Repository
institution_category Local University
institution Universiti Kebangasaan Malaysia
building UKM Institutional Repository
collection Online Access
language English
description Distribution of gold nanoparticles (AuNPs) on a substrate becomes crucial in nanotechnology applications. This work describes a route to fabricate AuNPs directly on silicon substrates by using an aluminum template in hydrothermal reaction at 80°C for 1 h. The effect of aluminum nitrate (Al(NO3)3) concentration in the hydrothermal bath was investigated. The properties of AuNPs were studied using field-emission scanning electron microscope (FESEM), x-ray diffractometer (XRD) and semiconductor characterization system (SCS). Two distinct sizes of AuNPs were observed by FESEM. XRD analysis proved the formation of AuNPs directly on the substrate. AuNPs were embedded between polymethylsilsesquioxane (PMSSQ) in order to investigate their effect on memory properties. The sample grown in 0.1 M Al(NO3)3 exhibited the largest hysteresis window (2.6 V) and the lowest Vth (2.2 V) to turn ‘ON’ the memory device. This indicated that good distribution of FCC structure AuNPs with 80±4 nm and 42±7 nm of large and small particles produced better charge storage capability. Charge transport mechanisms of AuNPs embedded in PMSSQ were explained in details whereby electrons from Si are transported across the barrier by thermionic effects via field-assisted lowering at the Si-PMSSQ interface with the combination of the Schottky and Poole Frenkel emission effect in Region 1. Trapped charge limited current (TCLC) and space charge limited current (SCLC) transport mechanism occurred in Region 2 and Region 3.
format Article
author Ng, S.A.
K.A. Razak,
Cheong, K.Y.
Aw, K.C.
spellingShingle Ng, S.A.
K.A. Razak,
Cheong, K.Y.
Aw, K.C.
The effect of Al(NO3)3 concentration on the formation of AuNPs using low temperature hydrothermal reaction for memory application
author_facet Ng, S.A.
K.A. Razak,
Cheong, K.Y.
Aw, K.C.
author_sort Ng, S.A.
title The effect of Al(NO3)3 concentration on the formation of AuNPs using low temperature hydrothermal reaction for memory application
title_short The effect of Al(NO3)3 concentration on the formation of AuNPs using low temperature hydrothermal reaction for memory application
title_full The effect of Al(NO3)3 concentration on the formation of AuNPs using low temperature hydrothermal reaction for memory application
title_fullStr The effect of Al(NO3)3 concentration on the formation of AuNPs using low temperature hydrothermal reaction for memory application
title_full_unstemmed The effect of Al(NO3)3 concentration on the formation of AuNPs using low temperature hydrothermal reaction for memory application
title_sort effect of al(no3)3 concentration on the formation of aunps using low temperature hydrothermal reaction for memory application
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2016
url http://journalarticle.ukm.my/10179/
http://journalarticle.ukm.my/10179/
http://journalarticle.ukm.my/10179/1/06%20S.A.%20Ng%20.pdf
first_indexed 2023-09-18T19:56:44Z
last_indexed 2023-09-18T19:56:44Z
_version_ 1777406578971901952