本文主要針對混合鹵化物鈣鈦礦: CH3NH3PbBr3、CH3NH3PbBr2.25Cl0.75、CH3NH3PbBr2Cl1、CH3NH3PbBr1.5Cl1.5、CH3NH3PbCl3 上述材料做實驗的分析。第一部分的實驗是量測上述五種混合鹵化物鈣鈦礦的光致發光光譜，可以找出材料本身能階所在的位置以及利用曲線擬合分析出Br的缺陷能階所在的波長，接著利用加熱平台讓材料做升溫的處理，在升溫的過程中可以看到不同比例的鹵化物鈣鈦礦光致發光光譜有不同的變化，會發現在特定比例的鹵化物鈣鈦礦在升溫的過程中能量可以很穩定，後續也針對顏色做了分析，特定比例的鹵化物鈣鈦礦在升溫的過程中不會隨著升溫而有顏色的變化。
第二部分的實驗是量測升溫過程的鹵化物鈣鈦礦光致變色光譜，當Br主導的鹵化物鈣鈦礦，在600nm附近的吸收以及波谷的位置會隨溫度上升而增加，而Cl主導的鹵化物鈣鈦礦在升溫過程可以看到在550nm附近吸收及波谷的位置會隨溫度上升而降低。

This research focuses on the metal halide perovskite: CH3NH3PbBr3、CH3NH3PbBr2.25Cl0.75、CH3NH3PbBr2Cl1、CH3NH3PbBr1.5Cl1.5、CH3NH3PbCl3 analysis of the above material for experimentation. The first part of the experiment is to measure the photoluminescence spectra of the above five metal halide perovskite, it is possible to find out the location of the energy level of material itself and use the curve fitting to analyze the wavelength of the defect energy level of Br, then use the heating platform to warm up the material, during the warming process, we can see different changes in the photoluminescence spectra of different proportions of metal halide perovskite,
it is found that the energy of a specific percentage of metal halide perovskite can be very stable during the heating process, meanwhile, further discussion on color changes of halide perovskite is made, specific percentage of metal halide perovskite does not change color as the temperature rises during the heating process.
The second part of the research, measurement of photochromic spectra of metal halide perovskite during warm-up temperature, When Br-dominated metal halide perovskite, the absorption near 600nm and the location of the dip will increase with temperature, The Cl-dominated metal halide perovskite can be seen to decrease in absorption and dip position near 550 nm as the temperature rises during the heating process.

﹝1﹞Ossila, "Perovskites and Perovskite Solar Cells: An Introduction," 2018.
﹝2﹞M. Green, Y. Hishikawa, E. D. Dunlop, D. Levi, J. Hohl-Ebinger, and A. Ho-Baillie, "Solar cell efficiency tables (version 52)," Progress in Photovoltaics, vol. 26, pp. 427-436, 2018.
﹝3﹞J. C. Yu, D. B. Kim, E. D. Jung, B. R. Lee, and M. H. Song, "High-performance perovskite light-emitting diodes via morphological control of perovskite films," Nanoscale, vol. 8 13, pp. 7036-42, 2016.
﹝4﹞K. Lin et al., "Perovskite light-emitting diodes with external quantum efficiency exceeding 20 per cent," Nature, vol. 562, pp. 245-248, 2018.
﹝5﹞D. Liang et al., "Color-Pure Violet-Light-Emitting Diodes Based on Layered Lead Halide Perovskite Nanoplates," ACS nano, vol. 10 7, pp. 6897-904, 2016.
﹝6﹞Dian Wang, Matthew Wright, Naveen Kumar Elumalai, Ashraf Uddin, "Stability of perovskite solar cells," Solar Energy Materials and Solar Cells, vol.147, pp. 255-275, 2016,
﹝7﹞Ahmed-Ali Kanoun, Mohammed Benali Kanoun, Abdelkrim E. Merad, Souraya Goumri-Said, "Toward development of high-performance perovskite solar cells based on CH3NH3GeI3 using computational approach," Solar Energy, vol.182, pp. 237-244, 2019,
﹝8﹞Ravi K. Misra, Bat-El Cohen, Lior Iagher, Lioz Etgar, "Low-Dimensional Organic-Inorganic Halide Perovskite: Structure, Properties, and Applications," ChemSusChem, 10(19), pp.3712 - 3721, 2017.
﹝9﹞Y. Chen, L. Zhang, Y. Zhang, H. Gao, and H. Yan, "Large-area perovskite solar cells-a review of recent progress and issues," RSC Advances, vol. 8, pp. 10489-10508, 2018.
﹝10﹞E. Mosconi, A. Amat, M. K. Nazeeruddin, M. Graetzel, and F. D. Angelis, "First-Principles Modeling of Mixed Halide Organometal Perovskites for Photovoltaic Applications," Journal of Physical Chemistry C, vol. 117, pp. 13902-13913, 2013.
﹝11﹞宋仕傑，「甲基銨碘化鉛單晶鈣鈦礦材料的光學物性探討」， 國立交通大學，碩士論文，民國105年。
﹝12﹞徐浩平，「甲基銨氯化鉛單晶鈣鈦礦材料光物理以及電性量測探討」， 國立交通大學，碩士論文，民國105年。
﹝13﹞王凱弘，「甲基銨溴化鉛單晶鈣鈦礦材料的光物理探討」， 國立交通大學，碩士論文，民國106年。
﹝14﹞杜楷博、太田信廣，「鈣鈦礦奈米晶體在外加電場效應下之吸收與光致發光之研究」， 國立交通大學，碩士論文，民國106年。
﹝15﹞L. Protesescu et al., "Nanocrystals of Cesium Lead Halide Perovskites (CsPbX3, X = Cl, Br, and I): Novel Optoelectronic Materials Showing Bright Emission with Wide Color Gamut," Nano Letters, vol. 15, pp. 3692 - 3696, 2015.
﹝16﹞T. Paul et al., "Efficient blue emission from ambient processed all-inorganic CsPbBr2Cl perovskite cubes," 2018.
﹝17﹞L. Chen, K.-L. Lee, C. Huang, J.-c. Lin, and Z.-L. Tseng, "Preparation and Characteristics of MAPbBr3 Perovskite Quantum Dots on NiOx Film and Application for High Transparent Solar Cells," Micromachines, vol. 9, 2018.
﹝18﹞S. A. Moiz, I. Khan, W. Younis, and K. Karimov, "Space Charge–Limited Current Model for Polymers," 2016.
﹝19﹞C. Chen et al., "Elucidating the phase transitions and temperature-dependent photoluminescence of MAPbBr3 single crystal," Journal of Physics D, vol. 51, pp. 045105, 2018.
﹝20﹞A. Poglitsch and D. Weber, "Dynamic disorder in methylammoniumtrihalogenoplumbates (II) observed by millimete’ wave spectroscopy," Journal of Chemical Physics, vol. 87, pp. 6373-6378, 1987.
﹝21﹞Ohno, Yoshi, "CIE Fundamentals for Color Measurements," NIP & Digital Fabrication Conference, 2000 International Conference on Digital Printing Technologies, pp. 540-545(6), 2000.
﹝22﹞Schnapf, Julie L., and Denis A. Baylor, "How Photoreceptor Cells Respond to Light," Scientific American , vol. 256, no. 4, 1987, pp. 40–47, 2020.
﹝23﹞Amy D. North, Mark D. Fairchild, "Measuring color-matching functions. Part I, "Color Research & Application , 18(3), 155-162, 1993
﹝24﹞Janos Schanda, Colorimetry: Understanding the CIE System.., John Wiley, Sons, New Jersey, 2007.
﹝25﹞H.-D. Zhao, Y.-Y. Yao, F. Sun, Q. Zhang, and X.-H. Yang, Display the CIE 1931 color chromaticity diagram with digital image processing (International Conference on Optical Instruments and Technology (OIT2013)). SPIE, 2013.
﹝26﹞A. Mannodi-Kanakkithodi, J.-S. Park, A. B. F. Martinson, and M. Chan, "Defect Physics of Pseudo-cubic Mixed Halide Lead Perovskites from First Principles," arXiv: Applied Physics, 2019.
﹝27﹞K.-H. Wang, L. Li, M. Shellaiah, and K. W. Sun, "Structural and Photophysical Properties of Methylammonium Lead Tribromide (MAPbBr3) Single Crystals," Scientific Reports, vol. 7, 2017.
﹝28﹞M. Ruff et al., "Polarization dependence of the electroabsorption in low— temperature grown GaAs for above ban„ gap energies," Applied Physics Letters, vol. 68, pp. 2968-2970, 1996.
﹝29﹞G. R. Kumar et al., "Phase transition kinetics and surface binding states of methylammonium lead iodide perovskite," Physical chemistry chemical physics : PCCP, vol. 18 10, pp. 7284-92, 2016.
﹝30﹞Z. Dang and D. A. Dinh, "Interaction of light with lead halide perovskites: A review," 2018.