| K2W3SeO12的合成、晶体结构和非线性光学性质研究 |
| Synthesis, Crystal Structure and Nonlinear Optical Property of K2W3SeO12 |
|
| 摘要: 本文通过水热反应得到一种新化合物K2W3SeO12，并测试了其单晶结构，该晶体属于三方晶系，空间群R3c，晶胞参数a=b=c=1.25361(10)nm，α=β=γ=33.5390(10)°。对它进行了XRD、EDX、ATR-FTIR、UV-Vis-NIR、TG、SHG测试。测试结果表明化合物有很强的可实现相位匹配的粉末倍频效应(强度约为KDP的9倍)，而且具有较宽的带隙(3.24eV)和良好的热稳定性。粉末的红外吸收边达到10μm。结果表明K2W3SeO12是一个具有潜在应用价值的中红外非线性光学晶体材料。 |
| 关键词: 钨硒酸盐|水热合成|非线性光学性质|晶体结构|带隙 |
| 基金项目: 国家自然科学基金（No.91022036）；国家重点基础研究发展计划（973计划）（No.2010CB630701）资助项目。 |
| Abstract: K2W3SeO12 was synthesized by hydrothermal method. It crystallizes in space group R3c of the rhombohedral system, with cell parameters a=b=c=1.25361(10) nm, α=β=γ=33.5390(10)°. It was further characterized by the tests of XRD, EDX, ATR-FTIR, UV-Vis-NIR, TGand SHG (second harmonic generation). Its powders show a phase-matchable SHG response of approximately 9 times of KDP. It also exhibits wide band gap (3.24 eV) and good thermal stability. Its infrared absorption wavelength can reach up to 10 μm. Therefore, K2W3SeO12 is regarded as a promising candidate for NLO (nonlinear optical) materials in the mid-IRregion. |
| Keywords: tungsten selenites hydrothermal synthesis nonlinear optical property crystal structure band gap |
| 投稿时间：2013-11-01 修订日期：2013-11-27 |
| 摘要点击次数: 2197 |
| 全文下载次数: 3534 |
| 黄印,孟祥高,秦金贵*.K2W3SeO12的合成、晶体结构和非线性光学性质研究[J].无机化学学报,2014,30(1):179-184. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
