K2Na(IO3)2(I3O8) with Strong Second Harmonic Generation Response Activated by Two Types of Isolated Iodate Anions

被引：38
作者：
Abudouwufu, Tushagu [1 ]
Zhang, Min [1 ,2 ]
Cheng, Shichao [1 ]
Zeng, Hao [1 ]
Yang, Zhihua [1 ,2 ]
Pan, Shilie [1 ,2 ]
机构：
[1] Chinese Acad Sci, CAS Key Lab Funct Mat & Devices Special Environm, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
来源：
CHEMISTRY OF MATERIALS | 2020年 / 32卷 / 08期
基金：
中国国家自然科学基金;
关键词：
NONLINEAR-OPTICAL MATERIALS; POLAR MATERIAL; LONE-PAIRS; CRYSTAL; FRAMEWORK; FLUORIDE; RB; CONDENSATION; EXPLORATIONS; LA(IO3)(3);
D O I：
10.1021/acs.chemmater.0c00878
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A new alkali metal iodate, K2Na(IO3)(2)(I3O8), has been synthesized using the mild hydrothermal method, which is the first example of noncentrosymmetric iodate containing isolated [IO3](-) and [I3O8](-) groups. To the best of our knowledge, it exhibits the largest second harmonic generation response among the iodates with two types of isolated I-O groups (7.6 X KH2 PO4 (KDP) @1064 nm). It also possesses a moderate birefringence (Delta n) of 0.055 at 1064 nm for achieving its phase matching and a wide band gap (3.83 eV) for obtaining a high laser damage threshold, which assures that it possesses a high laser-induced damage threshold (LDT, 13 X AgGaS2). These results indicate that it is a good candidate for nonlinear optical applications.
引用
收藏
页码：3608 / 3614
页数：7
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