Nano Archive

Electroluminescence emission of crystalline silicon nanoclusters grown at a low temperature

Tsai, Tai-Cheng and Yu, Li-Zhen and Lee, Ching-Ting (2007) Electroluminescence emission of crystalline silicon nanoclusters grown at a low temperature. NANOTECHNOLOGY, 18 (27).

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Official URL: http://www.iop.org/EJ/abstract/0957-4484/18/27/275...

Abstract

With CO2 laser assistance, crystalline silicon nanoclusters were formed in silicon nitride films deposited at a low temperature and without post-annealing using a conventional plasma-enhanced chemical vapour deposition system. The crystalline silicon nanoclusters embedded in silicon nitride matrices were observed from high-resolution transmission electron microscopy (HRTEM) images. According to experimental results of photoluminescence (PL) spectra and HRTEM images, the energy gap E(eV) as a function of diameter d (nm) of crystalline silicon nanoclusters can be expressed as E(eV) = 1.17 + (11.6/d(2)). The intensity and emission energy of the PL spectra of the laser-assisted silicon nitride films increased with the NH3 flow rate. Electroluminescence emission of light-emitting devices using the crystalline silicon nanoclusters was demonstrated.

Item Type:Article
Subjects:Physical Science > Nanophysics
Material Science > Nanostructured materials
Physical Science > Photonics
ID Code:6293
Deposited By:IoN
Deposited On:22 Dec 2009 10:07
Last Modified:22 Dec 2009 10:07

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