Production of Polar β-Glycine Nanofibers with Enhanced Nonlinear Optical and Piezoelectric Properties

被引：46

作者：

Isakov, Dmitry ^{[1
]}

Gomes, Etelvina de Matos ^{[1
]}

Bdikin, Igor ^{[2
,3
]}

Almeida, Bernardo ^{[1
]}

Belsley, Michael ^{[1
]}

Costa, Margarida ^{[4
]}

Rodrigues, Vitor ^{[4
]}

Heredia, Alejandro ^{[5
,6
]}

机构：

[1] Univ Minho, Ctr Fis, P-4710057 Braga, Portugal

[2] Univ Aveiro, Dept Mech Engn, P-3810193 Aveiro, Portugal

[3] Univ Aveiro, TEMA, P-3810193 Aveiro, Portugal

[4] Univ Coimbra, CEMDRX, Dept Fis, P-3004516 Coimbra, Portugal

[5] Univ Aveiro, Dept Ceram & Glass Engn, P-3810193 Aveiro, Portugal

[6] Univ Aveiro, Ctr Res Ceram & Composite Mat CICECO, P-3810193 Aveiro, Portugal

来源：

CRYSTAL GROWTH & DESIGN | 2011年 / 11卷 / 10期

关键词：

IR-SPECTRA; POLYMORPHISM; CRYSTALLIZATION;

D O I：

10.1021/cg2009336

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electrospinning of an aqueous poly(vinyl alcohol) and glycine solution has been used to produce nanofibers with an embedded crystalline glycine exclusively in the form of the beta polymorph. The beta-glycine nanocrystals are highly oriented within the polymer fibers and present good polar properties. Piezoelectric and nonlinear optical responses have been quantitatively examined showing piezoelectric coefficient d(eff) = 12.5 pm/V and an effective nonlinear optical susceptibility two times greater than that of potassium dihydrogen phosphate (KDP). Additionally, although bulk beta-glycine is metastable at room temperature, when confined inside the polymeric nanofibers, it is shown to be remarkably stable.

引用

页码：4288 / 4291

页数：4

共 33 条

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