Photoluminescence Characteristics of Silicon Quantum Dots Nanoparticles (SQDNs) Embedded on Glass Surface

Rosmani, C.H.; Abdullah, Sukarnur Che; Rusop, M.

doi:10.1016/j.proeng.2013.03.189

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…The Si 3 N 4 matrix allows a considerable reduction in the electron/hole injection barriers at the Si/Si 3 N 4 interfaces which improve the electrical stability of devices. Also, several authors have showed that photoluminescence (PL) peaks from Si NCs embedded in Si 3 N 4 are more blue shifted than those conﬁned in the SiO 2 matrix [11, 12]. Another dielectric for growing Si-QD is SiC.…”

Section: Introductionmentioning

confidence: 99%

Rapid Thermal Process for Crystallization Silicon Nitride Films

Meziani

Moussi

Mahiou

et al. 2019

Surface Engineering

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Synthesis and characterisation of silicon nanocrystals (Si NCs) materials are carried out. We investigated the morphological and structural Si NCs embedded in the silicon nitride (SiN x ) matrix. The study has been carried out on thin films thermally annealed at high temperature by rapid thermal annealing after deposition at 380°C by plasma-enhanced chemical vapour deposition. Our study evidenced the existence of an Si NCs embedded on the SiN x matrix. This has been proven by Raman spectra and high-resolution transmission electron microscopy (HR-TEM). A sharp peak at a frequency of 515 cm −1 ascribed to the transverse optical (TO) mode becomes broader and makes a symmetric shoulder on the higher frequency side with an increase in the annealing temperature. HR-TEM analyses have demonstrated that Si NCs having a mean radius ranging between 3 and 5 nm. This confirms the a-SiN phase transition to the c-SiN phase by the formation of silicon NCs.

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Section: Introductionmentioning

confidence: 99%

Rapid Thermal Process for Crystallization Silicon Nitride Films

Meziani

Moussi

Mahiou

et al. 2019

Surface Engineering

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“…Quantum dots are semiconductor whose conducting characteristic closely related to the size and shape of the individual crystal. Quantum dots also known as nanocrystals, are a special class of material known as semiconductor which are crystal composed of periodic group of II-IV, III-V or IV-VI materials [4]. Generally, the smaller the size of the crystal, the larger the band gap.…”

Section: Introductionmentioning

confidence: 99%

“…Quantum dots are unique class of semiconductor materials because they are so small, ranging from 2-10 nanometers in diameter. A quantum dost has a discrete quantized energy spectrum [4]. Introducing metallic quantum dots such as Ag, Au, and Cu into glass has been used for coloring glasses and recently fabricating optical devices [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Copper Quantum Dots Formation in a Borosilicate Glass

Zhang

Sheng

2015

JNanoR

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This Borosilicate glass offers superior properties to the ordinary silicate glass. Metallic quantum dots embedded in glass are promising materials which can be used in modern optical devices. However, the introduction of metallic quantum dots into borosilicate glass has not been studied. We investigated the formation of copper quantum dots in Cu-doped borosilicate glass matrix using thermal annealing process. The reductant SnO included in borosilicate glass played an important role in the formation of the metallic quantum dots. Specifically, Cu quantum dots were formed only when SnO content reached at least 0.5 wt% after borosilicate glass was heated at 600 °C for 60min, which was evidenced by the detection of the characteristic absorption band at about 560nm originated from the surface plasmon resonance of Cu nanoparticles. The optimal concentration of SnO was found to be 1.5 wt% and the mean size for the heating-induced Cu quantum dots was calculated to be ~1.7 nm. Our data offer a simple approach to prepare the metallic quantum dots in borosilicate glass matrix and suggest a new type of metallic quantum dots for applications where superior durability, chemical and heat resistance are required.

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