A thiazolo[5,4-d]thiazole-bridged porphyrin organic framework as a promising nonlinear optical material

被引：65

作者：

Samal, Mahalaxmi ^{[1
]}

Valligatla, Sreeramulu ^{[2
]}

Saad, Nabil A. ^{[3
]}

Rao, M. Veeramohan ^{[4
]}

Rao, D. Narayana ^{[3
]}

Sahu, Rojalin ^{[1
]}

Biswal, Bishnu P. ^{[5
,6
]}

机构：

[1] Deemed Be Univ, Sch Appl Sci, Kalinga Inst Ind Technol, Dept Chem, Bhubaneswar 24, Odisha, India

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

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

[4] Pondicherry Univ, Dept Phys, Pondicherry 606015, India

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

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

来源：

CHEMICAL COMMUNICATIONS | 2019年 / 55卷 / 74期

关键词：

METAL; FLUORESCENT; ABSORPTION; EFFICIENT;

D O I：

10.1039/c9cc05415d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Porphyrin-based porous organic frameworks are an important group of materials gaining interest due to their structural diversity and distinct opto-electronic properties. However, these materials are seldom explored for nonlinear optical (NLO) applications. In this work, we investigate a thiazolo[5,4-d]thiazole-bridged porous, porphyrin framework (Por-TzTz-POF) with promising NLO properties. The planar TzTz moiety coupled with integrated porphyrin units enables efficient pi-conjugation and charge distribution in the Por-TzTz-POF resulting in a high nonlinear absorption coefficient (beta = 1100 cm GW(-1)) with figure of merit (FoM) sigma(1)/sigma(0) = 5571, in contrast to analogous molecules and material counterparts e.g. metal-organic frameworks (MOFs; beta = similar to 0.3-0.5 cm GW(-1)), molecular porphyrins (beta = similar to 100-400 cm GW(-1)), graphene (beta = 900 cm GW(-1)), and covalent organic frameworks (Por-COF-HH; beta = 1040 cm GW(-1) and FoM = 3534).

引用

页码：11025 / 11028

页数：4

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