4.7 Article

Thermally crosslinkable second-order nonlinear optical polymer networks: high stability, good transparency, and large second-order nonlinear optical effects

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MATERIALS CHEMISTRY FRONTIERS
卷 6, 期 22, 页码 3349-3358

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ROYAL SOC CHEMISTRY
DOI: 10.1039/d2qm00803c

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  1. National Natural Science Foundation of China [21734007]

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This study proposes a new approach to design second-order nonlinear optical polymer networks through in situ thermal crosslinking. The networks exhibit excellent optical performance and stability after in situ poling and thermal crosslinking.
A new in situ thermal crosslinking approach was proposed to design second-order nonlinear optical polymer networks through a simple synthetic route, with the combination of the isolate chromophore concept. After in situ poling and thermal crosslinking, these networks demonstrated excellent second-order nonlinear optical (NLO) coefficients (d(33) value) with good NLO thermal stability (T-80%), in which, T3MA/TS2N(3) had a high d(33) value of 222 pm V-1 and a T-80% of 99.7 degrees C, reaching a high level in the polymers containing simple azo chromophore moieties.

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