在文獻中看到關於鹵化物鈣鈦礦的光誘導特性以及瞬態吸收光譜的相關研究。鹵化物鈣鈦礦在受到照光後，材料中的鹵素會有飄移並聚集在一起的現象。並且決定從拉曼光譜來探討此現象，我們對混合鹵化物鈣鈦礦的材料(MAPbBr(3-x)Clx)進行了照光拉曼光譜的量測，在使樣品照射405nm雷射後，再進行拉曼量測。光誘導鹵素飄移使鹵素原子重新分佈，Cl原子對MA分子中具有極性的氨基端有明顯的影響，Cl較小的原子半徑也會使分子運動的振盪頻率上升。本文也進行了光致變色光譜的量測，此量測可以讓我們用簡單的方法去找出混合鹵化物鈣鈦礦材料的表面缺陷能階。

In the literature, we have seen studies on the photoinduction properties and transient absorption spectra of metal-halide perovskite.When metal-halide perovskite is exposed to light, the halogens in the material drift and cluster together. We also decided to investigate this phenomenon by Raman spectroscopy, and we performed Raman spectroscopic measurements on mixed metal-halide perovskite material (MAPbBr(3-x)Clx) after irradiating the sample with a 405 nm laser. The light-induced halogen drift redistributes the halogen atoms, and the Cl atoms have a significant effect on the polar amino terminus of the MA molecule. The smaller atomic radius of Cl also increases the oscillation frequency of the molecular motion. In this paper, we also performed photochromic spectroscopy measurements, which allow us to find the surface defect energy levels of mixed metal-halide perovskite in a simple way.

致謝 I
中文摘要 III
ABSTRACT V
CONTENTS VII
圖目錄 IX
表目錄 XI
chapter 1序論 1
1.1 前言 1
1.1.1 物理與光電特性 1
1.1.2 發光二極體和雷射 4
1.2 鈣鈦礦結構 5
1.3 鹵化物鈣鈦礦光電特性 6
1.4 研究動機 7
chapter 2文獻回顧 9
2.1鹵化物鈣鈦礦光誘導特性 9
2.1.1鹵化物鈣鈦礦的光誘導鹵素再分佈 9
2.1.2鹵化物鈣鈦礦可逆的光誘導陷阱生成 11
2.2混合鹵化物鈣鈦礦拉曼光譜 14
2.2.1不同溫度下鹵化物鈣鈦礦的氫鍵演化 14
2.2.2鹵化物鈣鈦礦的振動光譜 16
2.3鹵化物鈣鈦礦瞬態吸收光譜 18
chapter 3研究方法 21
3.1 鹵化物鈣鈦礦的製備 21
3.1.1 MABr，MACl粉末的製備 21
3.1.2 鹵化物鈣鈦礦溶液的製備 22
3.1.3 鹵化物鈣鈦礦晶體成長方法 23
3.2 拉曼光譜 24
3.2.1 拉曼光譜介紹 24
3.2.2 拉曼光譜量測 26
3.3 光致變色光譜 27
3.3.1光致變色光譜的量測(穿透) 27
3.3.2光致變色光譜的量測(反射) 28
chapter 4實驗結果及數據分析 31
4.1 拉曼數據分析 31
4.1.1 拉曼光譜圖分析 31
4.1.2 拉曼峰值及運動模式個別分析 37
4.2.1 光致變色光譜(穿透量測)分析 45
4.2.2 光致變色光譜(反射量測)分析 47
chapter 5結論 49
Reference 51

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