Integration of Open Metal Sites in an Amino-Functionalized Sm(III)–Organic Framework toward Enhanced Third-Order Nonlinear Optical Property

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(39), P. 18173 - 18181

Published: Sept. 13, 2024

A variety of new inorganic and organic materials have emerged to advance laser technologies optical engineering. rational design approach can contribute significantly fabricating nonlinear optically active metal-organic frameworks (MOFs) by considering the underlying structure-property linkage. Here, it has been embarked on a study novel samarium(III) MOF, ([Sm

Language: Английский

---

Elevating the Optical Nonlinearity: Design, Synthesis, and Properties of a Mixed-Ligand Zinc(II) Metal–Organic Framework

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

The molecular design of new compounds with enhanced third-order nonlinear optical (NLO) applications is an important research topic in the area functional materials. present study describes a 3D metal-organic framework [Zn3(μ3-bta)2(μ4-ata)2]n (abbreviated as NH2-Zn-MUM-6), generated solvothermally from multicomponent system composed zinc(II) ions and 2-aminoterephthalic acid (H2ata) 1H-benzotriazole (Hbta) linkers. Apart intricate porous structure seh-4,6-Imma topology, this MOF features good thermal stability exceptional NLO characteristics. These were investigated detail by Z-scan method, revealing remarkably high values refractive index (n2 = 30.83 × 10-8 cm2/W) absorption coefficient (β 4.06 10-4 cm/W). An extended π-conjugation both aromatic ligands, μ3-bta- μ4-ata2-, their interaction Zn centers contribute to formation highly polarizable system, thus significantly enhancing its capacity for behavior. This broadens family materials provides insights into relationship between properties amino-functionalized mixed-linker MOFs viewpoint such all-optical switching data transmission.

Language: Английский

---

Simultaneous Achievement of Enhanced Nonlinear Optical Absorption and Nonlinear Refraction in Highly Crystalline 2D Covalent Organic Frameworks Ultrathin Films

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Large enhancement of nonlinear absorption and refraction are achieved simultaneously in highly ordered two dimensional (2D) covalent organic framework (COF) films prepared by solidliquid interface one-step method to overcome the weakness COF powders solubility. In intrinsic optical response obtained at 532 nm with 5 ns pulse, coefficients (β) -4.87 × 10-5 -1.29 m W-1, respectively. Simultaneously, fitted closed-aperture curves also show large refractive indexes (n2), -5.62 10-12 m2 W-1 -0.76 W-1. The 4f coherent imaging performed same condition a single-shot pulse further verifies outstanding without any damage probably experienced Z-scan technique. Moreover, differences electronic structure photoexcited states between compared explain difference response. All results indicate that crystalline giant can be capable modulating both amplitude phase light, providing huge potential all-optical manipulating switching nanoscale as materials.

Language: Английский

---

In Situ Loading of ZnS on the PPF-3 Surface for Enhancing Nonlinear Optical Performance

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 19, 2024

In recent years, with the rapid development of ultrastrong and ultrafast lasers, it has become essential to develop new materials excellent nonlinear optical (NLO) properties. Porphyrin-based metal-organic frameworks (MOFs) have great potential for application in field NLO due their large conjugated structure good stability. As a typical porphyrin-based MOF, porphyrin paddle-wheel framework-3 (PPF-3) been prepared applied fields catalysis sensing, yet investigation PPF-3 remains unexplored. this study, ZnS/PPF-3 composite was successfully using solvent thermal method situ load ZnS on surface PPF-3. Utilizing Z-scan technique, properties ZnS, PPF-3, were investigated under different input energy intensities. material exhibits significantly enhanced properties, third-order absorption coefficient (β

Language: Английский

---

Elevating Nonlinear Optical Response through d‐electron Modulation in Metal‐Organic Frameworks

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 24, 2024

Electronic structure and excited state behavior is of pronounced influence on regulation nonlinear optical (NLO) response. Herein, a serials transition metal ions bearing different d-electron numbers were in situ coordinated within porphyrinic metal-organic frameworks (MOFs), creating NLO-responsive M-metal (metal=Fe, Co, Ni, Cu, Zn) frameworks. It demonstrated that the NLO properties can be optimized with increased occupancy d-shell, which enhances degree delocalization. Specifically, full-filled (d

Language: Английский

---