摘要
综述了CsPbX_(3)钙钛矿纳米晶体尺寸、结构形貌及介孔包覆、玻璃包覆等因素对获取高质量激光输出、自发辐射、随机激光影响的研究现状。采用熔融技术与结晶法制备了CsPbX_(3)钙钛矿量子点玻璃,在420~714 nm全光谱范围内实现了可调谐的上转换发光。研究结果显示,具有高激子结合能的蓝光CsPbCl1.5Br1.5量子点玻璃更容易实现放大自发辐射。经440、470℃热处理后,绿光CsPbBr_(3)量子点玻璃在800 nm飞秒激光的激发下可实现全光谱可调谐放大自发辐射;经500、530℃热处理后,CsPbBr_(3)可实现随机激光。红光CsPb(BrI)_(3)量子点玻璃在590 nm处可实现随机激光。
The research status of the influence of the size,structure and morphology as well as mesoporous coating and glass coating of CsPbX_(3)perovskite nanocrystals on obtaining high-quality laser output,spontaneous emission and random laser.CsPbX_(3)perovskite quantum dot glass prepared by melting technology and crystallization method achieves tunable up-conversion luminescence in the full spectral range of 420-714 nm.The blue CsPbCl 1.5 Br 1.5 quantum dot glass with high exciton binding energy is easier to achieve amplified spontaneous emission.After heat treatment at 440℃and 470℃,the green CsPbBr_(3)quantum dot glass achieves ASE under the excitation of 800 nm femtosecond laser.After heat treatment at 500℃and 530℃,it can achieve random laser.The red CsPb(BrI)_(3)quantum dot glass can achieve random laser at 590 nm.
作者
向卫东
罗瞻栋
张慧灵
梅恩柔
梁晓娟
邹超
XIANG Weidong;LUO Zhandong;ZHANG Huiling;MEI Enrou;LIANG Xiaojuan;ZOU Chao(School of Chemistry and Materials Engineering,Wenzhou University,Wenzhou Zhejiang 325035,China)
出处
《重庆科技大学学报（自然科学版）》
CAS
2024年第5期1-8,共8页
Journal of Chongqing University of Science and Technology(Natural Sciences Edition)
基金
国家自然科学基金项目“定向析晶类腔体结构卤化铅铯钙钛矿纳米晶双色玻璃及微激光”(5207021296)。
