Nonlinear Optical Switching in Regioregular Porphyrin Covalent Organic Frameworks

被引：205

作者：

Biswal, Bishnu P. ^{[1
,2
]}

Valligatla, Sreeramulu ^{[3
]}

Wang, Mingchao ^{[1
]}

Banerjee, Tanmay ^{[2
]}

Saad, Nabil A. ^{[4
]}

Mariserla, Bala Murali Krishna ^{[5
]}

Chandrasekhar, Naisa ^{[1
]}

Becker, Daniel ^{[1
]}

Addicoat, Matthew ^{[6
]}

Senkovska, Irena ^{[7
]}

Berger, Reinhard ^{[1
]}

Rao, D. Narayana ^{[4
]}

Kaskel, Stefan ^{[7
]}

Feng, Xinliang ^{[1
]}

机构：

[1] Tech Univ Dresden, Fac Chem & Food Chem, Ctr Advancing Elect Dresden, D-01062 Dresden, Germany

[2] Max Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany

[3] IFW Dresden, Inst Integrat Nanosci, D-01069 Dresden, Germany

[4] Univ Hyderabad, Sch Phys, Hyderabad 500046, India

[5] Cent Univ Karnataka, Sch Phys Sci, Kadaganchi 585367, India

[6] Nottingham Trent Univ, Sch Sci & Technol, Clifton Lane, Nottingham NG11 8NS, England

[7] Tech Univ Dresden, Chair Inorgan Chem, D-01062 Dresden, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2019年 / 58卷 / 21期

基金：

欧盟地平线“2020”;

关键词：

covalent organic frameworks; microporous materials; nonlinear optics; porphyrins; regioregular materials; 2-PHOTON ABSORPTION PROPERTIES; METAL; PHTHALOCYANINES; CONSTRUCTION; CRYSTALLINE; STABILITY;

D O I：

10.1002/anie.201814412

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Covalent organic frameworks (COFs) have garnered immense scientific interest among porous materials because of their structural tunability and diverse properties. However, the response of such materials toward laser-induced nonlinear optical (NLO) applications is hardly understood and demands prompt attention. Three novel regioregular porphyrin (Por)-based porous COFs-Por-COF-HH and its dual metalated congeners Por-COF-ZnCu and Por-COF-ZnNi-have been prepared and present excellent NLO properties. Notably, intensity-dependent NLO switching behavior was observed for these Por-COFs, which is highly desirable for optical switching and optical limiting devices. Moreover, the efficient pi-conjugation and charge-transfer transition in ZnCu-Por-COF enabled a high nonlinear absorption coefficient (beta=4470cm/GW) and figure of merit (FOM=sigma(1)/sigma(o), 3565) value compared to other state-of-the-art materials, including molecular porphyrins (beta approximate to 100-400cm/GW), metal-organic frameworks (MOFs; beta approximate to 0.3-0.5cm/GW), and graphene (beta=900cm/GW).

引用

页码：6896 / 6900

页数：5

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