Investigation of the linewidth reduction effect of Photoluminescence spectra from silicon nanostructures
碩士 === 國立臺灣大學 === 光電工程學研究所 === 94 === Silicon light source is the most urgently needed device in the VLSI nowadays, and will play an important role in science and in technology. The aim of this thesis is to research through what mechanism and how the silicon nanostructures affect the luminescence sp...
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ndltd-TW-094NTU051240062015-12-16T04:32:15Z http://ndltd.ncl.edu.tw/handle/59324075577207535705 Investigation of the linewidth reduction effect of Photoluminescence spectra from silicon nanostructures 矽材發光之研究與矽奈米結構對光激發光頻譜線寬縮窄之效應 Han-Wei Wu 吳涵暐 碩士 國立臺灣大學 光電工程學研究所 94 Silicon light source is the most urgently needed device in the VLSI nowadays, and will play an important role in science and in technology. The aim of this thesis is to research through what mechanism and how the silicon nanostructures affect the luminescence spectra of silicon under low temperature. Nanostructures on silicon are found to contribute to the reduction of the linewidth of its photoluminescence (PL) spectrum under low temperature. We created variant silicon nanostructures on the surface silicon wafer, inclusive of silicon nanopillar structure and silicon nanoparticles layer. The effects of the devices with silicon nanostructures are suspected to the reduct of the linewidth, to increase the relaxation time of excitons and to lower the energy of continuum excitons after theoretical simulation. In addition, excitons are bosons and obey the Bose-Einstein distribution, thus under low temperature and the carrier confinement effects of the nanostructures, mass excitons will concentrate at the lowest energy level. The linewidth reduction effect might take place and the excitons might concentrate at higher temperature under the effects of the silicon nanostructures with more compact sizes and more regular arrangement. Ching-Fuh Lin 林清富 2005 學位論文 ; thesis 140 zh-TW |
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碩士 === 國立臺灣大學 === 光電工程學研究所 === 94 === Silicon light source is the most urgently needed device in the VLSI nowadays, and will play an important role in science and in technology. The aim of this thesis is to research through what mechanism and how the silicon nanostructures affect the luminescence spectra of silicon under low temperature. Nanostructures on silicon are found to contribute to the reduction of the linewidth of its photoluminescence (PL) spectrum under low temperature.
We created variant silicon nanostructures on the surface silicon wafer, inclusive of silicon nanopillar structure and silicon nanoparticles layer. The effects of the devices with silicon nanostructures are suspected to the reduct of the linewidth, to increase the relaxation time of excitons and to lower the energy of continuum excitons after theoretical simulation.
In addition, excitons are bosons and obey the Bose-Einstein distribution, thus under low temperature and the carrier confinement effects of the nanostructures, mass excitons will concentrate at the lowest energy level. The linewidth reduction effect might take place and the excitons might concentrate at higher temperature under the effects of the silicon nanostructures with more compact sizes and more regular arrangement.
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author2 |
Ching-Fuh Lin |
author_facet |
Ching-Fuh Lin Han-Wei Wu 吳涵暐 |
author |
Han-Wei Wu 吳涵暐 |
spellingShingle |
Han-Wei Wu 吳涵暐 Investigation of the linewidth reduction effect of Photoluminescence spectra from silicon nanostructures |
author_sort |
Han-Wei Wu |
title |
Investigation of the linewidth reduction effect of Photoluminescence spectra from silicon nanostructures |
title_short |
Investigation of the linewidth reduction effect of Photoluminescence spectra from silicon nanostructures |
title_full |
Investigation of the linewidth reduction effect of Photoluminescence spectra from silicon nanostructures |
title_fullStr |
Investigation of the linewidth reduction effect of Photoluminescence spectra from silicon nanostructures |
title_full_unstemmed |
Investigation of the linewidth reduction effect of Photoluminescence spectra from silicon nanostructures |
title_sort |
investigation of the linewidth reduction effect of photoluminescence spectra from silicon nanostructures |
publishDate |
2005 |
url |
http://ndltd.ncl.edu.tw/handle/59324075577207535705 |
work_keys_str_mv |
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