| K4Sn3Se8的固相合成、晶体结构和反射光谱研究 |
| |
| 引用本文： | 王志霞,郭洪猷. K4Sn3Se8的固相合成、晶体结构和反射光谱研究[J]. 北京化工大学学报(自然科学版), 2003, 30(4): 78-80 |
| |
| 作者姓名： | 王志霞 郭洪猷 |
| |
| 作者单位： | 北京化工大学理学院,北京,100029 |
| |
| 基金项目： | 国家重点实验室基金;PK-2002-01; |
| |
| 摘 要： | 采用反应性熔盐法，通过中温固相反应在500℃下合成晶体K4Sn3Se8。该晶体属正交晶系，空间群Ccca，晶胞参数：a=0.82115(6)nm，b=2.7790(2)nm，c=0.81865(6)nm，V=1.8682(2)nm3，Z=4。K4Sn3Se8由[Sn3Se8]4三聚体负离子和K+正离子组成。漫反射光谱研究表明该材料能隙(Eg)为2.6eV，属于半导体，对太阳能具有选择吸收的特性。
|
| 关 键 词： | K4Sn3Se8 固相合成 晶体结构 漫反射光谱 K4Sn3Se8 固相合成 晶体结构 漫反射光谱 |
Solid state synthesis,crystal structure and diffuse reflectance spectra of K4Sn3Se8 |
| |
| WANG Zhi-Xia GUO Hong-You. Solid state synthesis,crystal structure and diffuse reflectance spectra of K4Sn3Se8[J]. Journal of Beijing University of Chemical Technology, 2003, 30(4): 78-80 |
| |
| Authors: | WANG Zhi-Xia GUO Hong-You |
| |
| Affiliation: | College of Science; Beijing University of Chemical Technology; Beijing; China |
| |
| Abstract: | A ternary metal selenide K4Sn3Se8 was synthesized by use of the reactive molten salt method at 500℃. The orange red granular crystals crystallized in orthorhombic space group Ccca with cell parameters: a=0.82115(6)nm, b=2.7790(2)nm, c=0.81865(6)nm, V =1.8682(2)nm3 and Z=4. K4Sn3Se8 has a zero-dimensional structure consisting of [Sn3Se8]4- trimeric anions and K+ cations. Diffuse reflective spectra of the powder sample indicated that this compound is a semiconductor with an energy gape of 2.6 eV. |
| |
| Keywords: | K_4Sn_3Se_8 solid state synthesis crystal structure diffuse reflectance spectra |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《北京化工大学学报(自然科学版)》浏览原始摘要信息 |
|
点击此处可从《北京化工大学学报(自然科学版)》下载全文 |
