Na2ZnSn2S6:Amixed-metalthiostannatewithlargesecond-harmonicgenerationresponseactivatedbypenta-tetrahedral[ZnSn4S14]10-clusters

被引：0

作者：

LI GuangMao ^{[1
,2
]}

WU Kui ^{[1
]}

LIU Qiong ^{[1
,2
]}

YANG ZhiHua ^{[1
]}

PAN ShiLie ^{[1
]}

机构：

[1] Key Laboratory of Functional Materials and Devices for Special Environments,Xinjiang Key Laboratory of Electronic Information Materials and Devices,Xinjiang Technical Institute of Physics & Chemistry,Chinese Academy of Sciences

[2] University of Chinese Academy of Sciences

来源：

Science China(Technological Sciences) | 2017年 / 60卷 / 10期

关键词：

Na2ZnSn2S6; nonlinear optical; infrared; second-harmonic generation;

D O I：

暂无

中图分类号：

TB34 [功能材料];

学科分类号：

080501 ;

摘要：

A sodium zinc thiostannate Na2ZnSn2S6 is reported with its interesting structural features and property characteristics. It crystallizes in the polar space %xou^Fddl（No. 43） with the unit cell parameters of a=12.945（3）,b=23.556（5）, c=7.2774（15）and Z=8. In its structure,Zn-centered penta-tetrahedra [ZnSn4S15]12-clusters arrange regularly along the diagonals of ab and ac planes to form a 3D tunnel structure with charge-balanced Na+ cations located inside the tunnels. Note that SnS4 tetrahedra connect with each other by sharing comers to form infinite ∞[SnS3]_n? chains that are rarely found in known alkali-thiostannatesRemarkably,Na2ZnSn2S6 exhibits the good NLO performances,such as large SHG response（4 times that of AgGaS2 at55-88 um under the 2.09 um radiation）, wide infrared（IR） transmission region（0.35-25 um） and relatively high laser damage threshold（77.5 MW/cm2, 2 times that of AgGaS2）. Theoretical calculations have also been performed to investigate the structure-property relationship and the results indicate that the origin of NLO effect can be attributed to the penta-tetrahedra[ZnSn4]12- clusters.

引用

页码：1465 / 1472

页数：8

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