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氧化鋅鎂合金之電子-聲子交互作用研究 = Electron-Phonon...

國立高雄大學應用物理學系碩士班

氧化鋅鎂合金之電子-聲子交互作用研究 = Electron-Phonon Interaction of ZnMgO alloys

Record Type:	Language materials, printed : monographic
Paralel Title:	Electron-Phonon Interaction of ZnMgO alloys
Author:	蔡逸凡,
Secondary Intellectual Responsibility:	國立高雄大學
Place of Publication:	[高雄市]
Published:	撰者;
Year of Publication:	2013[民102]
Description:	47面圖，表 : 30公分;
Subject:	氧化鋅鎂
Subject:	ZnMgO
Online resource:	http://handle.ncl.edu.tw/11296/ndltd/57613422230387829375
Notes:	參考書目：面45-46
Notes:	103年12月16日公開
Summary:	我們利用光譜的方式，討論氧化鋅鎂合金中電子與聲子交互作用的變化。先以溶膠-凝膠法製成一系列鎂濃度不同的氧化鋅鎂薄膜，從吸收光譜討論鎂濃度實際摻雜濃度，可以得知我們樣品中濃度只有少量的實驗誤差。再觀察其發光半高寬，討論鎂離子聚合的情形，發現在我們樣品中鎂聚合的情形相當少。最後，針對變溫的吸收光譜進行一系列討論。先扣除熱膨脹使能隙變化的效應，再分別以單聲子模型、雙聲子模型隨機作用比例和雙聲子模型固定作用比例，對樣品的變溫吸收光譜峰值變化做擬合。發現無論使用何種模型，電子-聲子交互作用強度變化皆沒有一定的趨勢。 In this thesis, we studied the electron-phonon interaction of ZnMgO alloys by spectroscopic method. A series of ZnMgO with various Mg concentrations were grown by sol-gel spin-coating technique. There is only a little experimental error on the Mg concentration determined by absorption spectroscopy. By studying the full-width at half-maximum of photoluminescence spectra, we found that the Mg clustering is almost absent in our samples. Finally, we investigated the temperature-dependent absorption spectra. After eliminating the band-gap shift due to the thermal expansion, we fitted the thermally induced absorption-energy redshifts by single-phonon model, two-phonon model with variable proportional constant and two-phonon model with fixed proportional constant. Neither of them shows a particular trend on the electron-phonon interaction.

氧化鋅鎂合金之電子-聲子交互作用研究 = Electron-Phonon Interaction of ZnMgO alloys
蔡, 逸凡

氧化鋅鎂合金之電子-聲子交互作用研究 = Electron-Phonon Interaction of ZnMgO alloys / 蔡逸凡撰 - [高雄市] : 撰者, 2013[民102]. - 47面 ; 圖，表 ; 30公分.
參考書目：面45-46103年12月16日公開.
氧化鋅鎂ZnMgO

氧化鋅鎂合金之電子-聲子交互作用研究 = Electron-Phonon Interaction of ZnMgO alloys
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300 $a 103年12月16日公開
314 $a 指導教授：謝振豪博士
328 $a 碩士論文--國立高雄大學應用物理學系碩士班
330 $a 我們利用光譜的方式，討論氧化鋅鎂合金中電子與聲子交互作用的變化。先以溶膠-凝膠法製成一系列鎂濃度不同的氧化鋅鎂薄膜，從吸收光譜討論鎂濃度實際摻雜濃度，可以得知我們樣品中濃度只有少量的實驗誤差。再觀察其發光半高寬，討論鎂離子聚合的情形，發現在我們樣品中鎂聚合的情形相當少。最後，針對變溫的吸收光譜進行一系列討論。先扣除熱膨脹使能隙變化的效應，再分別以單聲子模型、雙聲子模型隨機作用比例和雙聲子模型固定作用比例，對樣品的變溫吸收光譜峰值變化做擬合。發現無論使用何種模型，電子-聲子交互作用強度變化皆沒有一定的趨勢。 In this thesis, we studied the electron-phonon interaction of ZnMgO alloys by spectroscopic method. A series of ZnMgO with various Mg concentrations were grown by sol-gel spin-coating technique. There is only a little experimental error on the Mg concentration determined by absorption spectroscopy. By studying the full-width at half-maximum of photoluminescence spectra, we found that the Mg clustering is almost absent in our samples. Finally, we investigated the temperature-dependent absorption spectra. After eliminating the band-gap shift due to the thermal expansion, we fitted the thermally induced absorption-energy redshifts by single-phonon model, two-phonon model with variable proportional constant and two-phonon model with fixed proportional constant. Neither of them shows a particular trend on the electron-phonon interaction.
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610 0 $a 氧化鋅鎂 $a 電子-聲子交互作用 $a 變溫吸收光譜
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