鈣鈦礦材料因其有著透過替換陰陽離子即可調變發光波段的特性，近年來被廣泛的應用在 LED、太陽能電池、偵測器等相關光電元件，而高品質之鈣鈦礦甚至可發展至雷射的應用。本研究致力於使用簡單且低成本的溶液退火法來製作大面積全無機 CsPbBr3 鈣鈦礦微米線以及具光柵結構之薄膜，將溶液侷限在光柵結構中來降低溶劑揮發速度，藉此來制備高品質晶體。本研究之製成方式所製作出的微米線除了生長方向一致之外，其排列方式也具有高度週期性且與本實驗所使用之 CD 週期相符，對於未來鈣鈦礦陣列的應用提供了良好的設計條件。本文中，我們先針對全無機鈣鈦礦光柵結構薄膜以及微米線進行基本光學特性分析，接著針對光柵結構薄膜的雷射現象，對其驗證並分析其具有隨機雷射的特性;另外，鈣鈦礦微米線自體形成 F-P 共振腔，在雷射的應用下具有高品質因子(Q factor)，最高可達 4870，令其在鈣鈦礦雷射的應用增添了許多優勢。

Perovskite materials have been widely used in photoelectric components such as LEDs, solar cells, and detectors in recent years because of their ability to adjust the lightemitting band by replacing anions and cations, and high-quality perovskites can even develop for laser applications.
This research is dedicated to using a simple and low-cost solution annealing method to fabricate large-area all-inorganic CsPbBr3 perovskite microwires and grating structured thin films. The solution is confined in the grating structure to reduce the solvent volatilization rate, thereby preparing high-quality crystals. In addition to the same growth direction, the microwires produced by our manufacturing method in this study are also highly periodic and consistent with the CD period used in this experiment, which provides a sound basis for applying perovskite arrays in the future.
In this work, we comprehensively analyzed the key optical characteristics of allinorganic perovskite grating-structured thin films and microwires. We confirmed and analyzed the random laser properties exhibited by the grating-structured thin film. Additionally, we discovered that the microwires formed Fabry-Pérot (F-P) resonant cavities, exhibiting high-quality factors (Q factors) of up to 4870. These findings present significant advantages for applying perovskite lasers, as the high-Q factor of the microwires enhances their laser performance and suitability for various laser applications.

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