UiO-66-NH2金属有机骨架改性杂化钙钛矿薄膜非线性光学性质研究

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-04-24 DOI:10.1016/j.optmat.2025.117094

Behnaz Tavakoli , Marzieh Nadafan , Zohreh Shadrokh , Nasim Kabir , Alireza Abbasi , Yaser Abdi

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引用次数: 0

摘要

本研究考察了CH3NH3PbI3 （MAPbI3）和MAPbI3 + MOF（uo -66- nh2）的线性和非线性光学（NLO）性能和热光学方面，这是一种以薄层形式合成的金属有机骨架（MOF），并通过z扫描方法在不同入射功率下进行了表征。MOF的掺入导致了晶粒尺寸和结晶度的增加，而慢速和快速衰减寿命的改善表明MAPbI3 + MOF表面缺陷的减少。非线性行为的结果表明，相对于MAPbI3薄膜，MAPbI3 + MOF薄膜的自聚焦行为和显著增强，主要归因于饱和吸收（SA）。此外，MAPbI3薄膜的非线性折射率（NLR, n2）和非线性吸收系数（NLA, β）随MOF的加入和输入激光功率从10 mW增加到50 mW而增加。激光强度的增强，再加上金属有机骨架（MOFs）在钙钛矿材料中的集成，显著提高了性能图（FOM）参数。因此，这项研究强调了MAPbI3与UiO-66-NH2结合在广泛的光电应用中的潜力，包括q开关，在降低入射功率水平下展示了卓越的NLO特性。

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Investigation of nonlinear optical properties in hybrid perovskite thin film modified by UiO-66-NH2 metal organic framework

This study examines the linear and nonlinear optical (NLO) properties and thermo-optical aspects of CH₃NH₃PbI₃ (MAPbI₃) and MAPbI₃ + MOF(UiO-66-NH₂), a metal-organic framework (MOF) which are synthesized in the form of a thin layer and characterized by the Z-scan method in various incident powers. The incorporation of the MOF has resulted in increased grain size and crystallinity, while the improvement in both slow and fast decay lifetimes suggest a reduction the defects on the MAPbI₃ + MOF surface. The results obtained from the nonlinear behavior show the phenomenon self-focusing behavior and a substantial enhancement in MAPbI₃ + MOF thin films relative to MAPbI₃ films, primarily attributed to saturable absorption (SA). Furthermore, the parameters measured in the nonlinear refraction index (NLR, n₂) and the nonlinear absorption coefficient (NLA, β) of the MAPbI₃ thin film increase with the incorporation of MOF and as the input laser power rises from 10 mW to 50 mW. The enhancement of laser intensity, coupled with the integration of metal-organic frameworks (MOFs) within the perovskite material, has significantly improved the figure of merit (FOM) parameter. This study thus underscores the potential of using MAPbI₃ combined with UiO-66-NH₂ across a wide array of optoelectronic applications, including Q-switching, demonstrating exceptional NLO properties at reduced incident power levels.

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.