Development of silicon nanostructures as light emitter and sensitizer for erbium emission

One of the motivation of Silicon (Si) photonics was to realize optical interconnect to alleviate the bottleneck encountered in the electrical interconnect, especially in high speed application. The key advantages of Si photonics are its excellent optical properties as well as its high yield and low...

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Main Author: Silalahi, Samson Tua Halomoan
Other Authors: Kantisara Pita
Format: Theses and Dissertations
Language:English
Published: 2010
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Online Access:https://hdl.handle.net/10356/34127
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-341272023-07-04T16:52:30Z Development of silicon nanostructures as light emitter and sensitizer for erbium emission Silalahi, Samson Tua Halomoan Kantisara Pita School of Electrical and Electronic Engineering A*STAR Institute of Microelectronics Photonics Research Centre Yu Mingbin DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics One of the motivation of Silicon (Si) photonics was to realize optical interconnect to alleviate the bottleneck encountered in the electrical interconnect, especially in high speed application. The key advantages of Si photonics are its excellent optical properties as well as its high yield and low production cost established in microelectronics industry. Accordingly, Si-based material has been intensively developed for different photonics components, such as light guiding, modulation and light detection. However one underlying fact is that Si-based material has not been successfully developed as a light emitter component, which is an integral part of optical integrated circuits. This is due to the indirect band gap property of Si material. Nanostructured Si, however, exhibits potential luminescence in visible to NIR wavelength and therefore attracted interest for realizing the light emitting component. Some of the advantages of Si-nanostructures based emitting structure are the broadband excitation wavelength (near UV to visible, 300-500 nm), the controllability of emission wavelength by tailoring the average size of Si nanostructures, as well as the sensitizing effect of Si-nanostructures on Erbium (Er)-related emission. However, there are still several challenges as follows. Firstly, a prolonged annealing in the range of 1100oC is normally implemented to form efficiently emitting Si-nanocrystals. Secondly, in general, controlling the Si-nanocrystal size by varying Si concentration is difficult to achieve. Thirdly, there is a need to optimize the energy transfer from Si-nanostructure and Erbium (Er) ions to increase emission intensity of Si-nanostructures sensitized Er system. Lastly, in the case of light emitting device, a more efficient light extraction is necessary. In this work, these challenges were addressed. DOCTOR OF PHILOSOPHY (EEE) 2010-04-08T06:50:21Z 2010-04-08T06:50:21Z 2009 2009 Thesis Silalahi, S. T. H. (2009). Development of silicon nanostructures as light emitter and sensitizer for erbium emission. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/34127 10.32657/10356/34127 en 177 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::Electrical and electronic engineering::Optics, optoelectronics, photonics
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Silalahi, Samson Tua Halomoan
Development of silicon nanostructures as light emitter and sensitizer for erbium emission
description One of the motivation of Silicon (Si) photonics was to realize optical interconnect to alleviate the bottleneck encountered in the electrical interconnect, especially in high speed application. The key advantages of Si photonics are its excellent optical properties as well as its high yield and low production cost established in microelectronics industry. Accordingly, Si-based material has been intensively developed for different photonics components, such as light guiding, modulation and light detection. However one underlying fact is that Si-based material has not been successfully developed as a light emitter component, which is an integral part of optical integrated circuits. This is due to the indirect band gap property of Si material. Nanostructured Si, however, exhibits potential luminescence in visible to NIR wavelength and therefore attracted interest for realizing the light emitting component. Some of the advantages of Si-nanostructures based emitting structure are the broadband excitation wavelength (near UV to visible, 300-500 nm), the controllability of emission wavelength by tailoring the average size of Si nanostructures, as well as the sensitizing effect of Si-nanostructures on Erbium (Er)-related emission. However, there are still several challenges as follows. Firstly, a prolonged annealing in the range of 1100oC is normally implemented to form efficiently emitting Si-nanocrystals. Secondly, in general, controlling the Si-nanocrystal size by varying Si concentration is difficult to achieve. Thirdly, there is a need to optimize the energy transfer from Si-nanostructure and Erbium (Er) ions to increase emission intensity of Si-nanostructures sensitized Er system. Lastly, in the case of light emitting device, a more efficient light extraction is necessary. In this work, these challenges were addressed.
author2 Kantisara Pita
author_facet Kantisara Pita
Silalahi, Samson Tua Halomoan
format Theses and Dissertations
author Silalahi, Samson Tua Halomoan
author_sort Silalahi, Samson Tua Halomoan
title Development of silicon nanostructures as light emitter and sensitizer for erbium emission
title_short Development of silicon nanostructures as light emitter and sensitizer for erbium emission
title_full Development of silicon nanostructures as light emitter and sensitizer for erbium emission
title_fullStr Development of silicon nanostructures as light emitter and sensitizer for erbium emission
title_full_unstemmed Development of silicon nanostructures as light emitter and sensitizer for erbium emission
title_sort development of silicon nanostructures as light emitter and sensitizer for erbium emission
publishDate 2010
url https://hdl.handle.net/10356/34127
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