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

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

Chem Commun (Camb)

Faculty of Chemistry and Food Chemistry, Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062, Dresden, Germany and Max-Planck-Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany.

Published: September 2019

AI Article Synopsis

  • Porphyrin-based porous organic frameworks are gaining attention for their structural diversity and unique optical properties, but their potential for nonlinear optical (NLO) applications has not been widely studied.
  • This study focuses on a specific porous framework, Por-TzTz-POF, which features a thiazolo[5,4-d]thiazole bridge that enhances π-conjugation and charge distribution.
  • The results show that Por-TzTz-POF has an exceptionally high nonlinear absorption coefficient (β = 1100 cm GW), surpassing that of similar materials, indicating its strong potential for NLO applications.

Article Abstract

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 π-conjugation and charge distribution in the Por-TzTz-POF resulting in a high nonlinear absorption coefficient (β = 1100 cm GW) with figure of merit (FoM) σ/σ = 5571, in contrast to analogous molecules and material counterparts e.g. metal-organic frameworks (MOFs; β = ∼0.3-0.5 cm GW), molecular porphyrins (β = ∼100-400 cm GW), graphene (β = 900 cm GW), and covalent organic frameworks (Por-COF-HH; β = 1040 cm GW and FoM = 3534).

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Source
http://dx.doi.org/10.1039/c9cc05415dDOI Listing

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