臺灣博碩士論文加值系統

由吸收光譜求得吸收截面，並利用D(0)或A(0)能態的歸一化來獲得螢光截面。在外加氣體的消激實驗中，觀察到了NO自消激的存在並計算出自消激速率常數和外加氣體對NO螢光消激速率常數並且和前人的結果做比較。C(1)和B(9)兩個強預解離態在外加氣體時都會發生碰撞誘發躍遷的情形而使總體螢光增強，在與N2混和時則會有共振轉換而導致γ band的增強。同時利用計算消激截面可求出 εNO*-M的凡得瓦位能井深。

In the fluorescence excitation spectra, fluorescence cross sections can be measured by the normalization of absorption cross section of A(0) or D(0) states. In the presence of foreign gases, the self-quenching rate constants, the half-quenching pressures and the quenching rate constants of D(0) and D(1) states are measured and the results are compared with the previous works. In the additional of foreign gases, the enhancement of global fluorescence of the strong predissociation states of C(1) and B(9) is due to the collision-induced transition. In the case of N2, the enhancement of fluorescence of γband is owing to the resonance transfer. Finally, the well depth of the van der Walls molecules which are formed by the excited state of NO with quenching gas can be derived from the measured quenching cross sections.

總目錄
章節目錄…………………………………………………………………i
圖目錄…………………………………………………………………...iii
表格目錄………………………………………………………………...vi
中文論文摘要 0
第一章 簡介 1
1.1 引言………………………………………………………………….1
1.2 NO相關研究………………………………………………………2
1.3 實驗方向…………………………………………………………….3
第二章 原理簡介 4
2.1 NO的背景架構…………………………………………………….4
2.2 NO各能態簡介…………………………………………………...10
第三章 實驗方法及系統 14
3.1 光源系統…………………………………………………………...14
(a).同步輻射光源…………………………………………………...14
(b)同步輻射光的特色……………………………………………...15
(c) 1M-SNM………………………………………………………...15
(d)入射光波長……………………………………………………...16
(e)波長零點校正……………………………………………………17
3.2 氣體反應槽………………………………………………………...19
3.3 光偵側系統………………………………………………………...21
第四章 分析結果與討論 23
4.1 NO吸收光譜……………………………………………………...23
4.1.1 Beer-Lambert Law…………………………………………...23
4.1.2 NO吸收截面的計算…………………………………………25
4.1.3 Deviation from Beer-Lambert Law…………………………..26
4.1.4 NO吸收光譜…………………………………………………28
(a). 100~170 nm………………………………………………...28
(b). 170~230 nm………………………………………………...28
4.1.5 外加氣體對NO吸收的影響………………………………...32
4.2 NO螢光光譜……………………………………………………...39
4.2.1 螢光強度(If)與螢光截面( )………………………………..39
4.2.2 NO的螢光截面………………………………………………41
4.3 NO與外加氣體碰撞之消光情形………………………………...45
4.3.1 Self-quench of NO……………………………………………45
4.3.2 Stern-Volmer equation………………………………………..52
4.3.3 NO D(0)在外加氣體下的螢光反應…………………………54
4.3.4 消激截面與凡得瓦位能井深………………………………..65
4.3.5 NO加入外加氣體的消光作用和消光機制…………………70
第五章 結論與未來展望 76
5.1 結論………………………………………………………………76
5.2 未來實驗方向及展望……………………………………………77
參考文獻……………………………………………………………….78
圖目錄
圖2.1 NO的位能曲線圖………………………………………………7
圖2.2 NO第一解離極以下六個能態(X2P、A2S+、B2P、C2P、a4P、b4S‾)的位能曲線圖……………………………………………13
圖3.1 同步輻射研究中心的加速器系統…….………………………14
圖3.2 同步輻射光之光源亮度分佈圖..……………………………...15
圖3.3 同步輻射光在100~230nm光源強度和入射波長的關係……17
圖3.4 同步輻射光強度與儲存環射束電流值的關係……….………18
圖3.5 Ar的吸收光譜…………………………………………………18
圖3.6 實驗裝置圖…………….………………………………………20
圖4.1 物體粒子吸收實驗示意圖…………...………………………..24
圖4.2 ln(I0/It)對NO壓力P(mT)的關係圖……………………………26
圖4.3 ln(I0/It)對NO高壓力P(mT)的關係…………………………..27
圖4.4 NO 50mT在105~170nm的吸收截面(解析度 0.249nm)…..29
圖4.5 NO 50mT在170~230nm的吸收截面(解析度 0.249nm)…...30
圖4.6 Lorentz broadening…….………………………………………33
圖4.7 NO吸收譜線隨著外加氣體增加之示意圖…….…………….34
圖4.8 NO (300mT)吸收能力對He壓力的關係……………………..35
圖4.9 NO (300mT)吸收能力對Ar壓力的關係……….…………….35
圖4.10 NO (300mT)吸收能力對Xe壓力的關係……………………36
圖4.11 NO (300mT)吸收能力對He壓力的關係……………………36
圖4.12 NO (50mT)吸收能力和He壓力的關係……………………..37
圖4.13 NO (50mT)吸收能力和N2壓力的關係……………………...37
圖4.14 NO (50mT)吸收能力和CO2壓力的關係……………………38
圖4.15 NO (50mT)吸收能力與Ar壓力的關係………………….….38
圖4.16 PMT偵測率對螢光產率的影響示意圖……………………..42
圖4.17 NO在波長170~230nm對A(0) state吸收截面歸一化的螢光截面.…………………………………………………………..43
圖4.18 NO在波長170~230nm對D(0) state吸收截面歸一化的螢光截面…………….……….…………………………………….44
圖4.19 NO ε(0,4) fluorescence quench by NO…………………….48
圖4.20 NO γ(0,0) fluorescence quench by NO…………….…….…48
圖4.21 NO γ(1,1) fluorescence quench by NO…………………….49
圖4.22 NO γ(2,2) fluorescence quench by NO…………………….49
圖4.23 NO ε(0,2) fluorescence quench by NO…………………….50
圖4.24 NO δ(0,2) fluorescence quench by NO………………….….50
圖4.25 NO (50mT) R對Ar壓力的關係…………………....……….57
圖4.26 NO (50mT) R對Xe壓力的關係…………………………….57
圖4.27 NO ε(0,4) quench by CO2…………………………………..58
圖4.28 NO ε(0,4) quench by Ar…………………………………….58
圖4.29 NO ε(0,4) quench by Kr……………………………………59
圖4.30 NO ε(1,6) quench by Xe……………………………………59
圖4.31 NO ε(1,6) quench by CF4…………………………………..60
圖4.32 NO ε(1,6) quench by Kr……………………………………60
圖4.33 NO 300mT與50mT分別對Ar壓力的關係D(0)………….61
圖4.34 NO 300mT與50mT分別對Xe壓力的關係D(0)………….61
圖4.35 NO 300mT與50mT分別對Kr壓力的關係D(1)………….62
圖4.36 NO 300mT與50mT分別對Xe壓力的關係D(1)………….62
圖4.37 lnσQ對(εQQ/k)1/2作圖以求得D(0)的β值…………………67
圖4.38 lnσQ對(εQQ/k)1/2作圖以求得D(1)的β值…………………67
圖4.39 γband fluorescence of the NO C(0)…………………………71
圖4.40 γband fluorescence of the NO D(0)…………………………71
圖4.41 γband fluorescence of the NO C(1)…………………………72
圖4.42 γband fluorescence of the NO B(9)…………………………72
圖4.43 NO B(9)與C(1)總體螢光和Xe壓力的關係………………..75
圖4.44 NO B(9)與C(1)總體螢光和Ar壓力的關係………………..75

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