人工晶体学报2012，Vol.41Issue(2)：312-317,6.
pH值对微波水热法制备γ-MnS微晶形貌及光学性能的影响
Influences of pH Values on Morphology and Optical Performance of γ-MnS Microcrystalline Prepared by Microwave Hydrothermal Method
摘要
Abstract
The γ-MnS microcrystalline was synthesized at different pH values by microwave hydrothermal (M-H) method using manganese chloride and thioacetamide as raw materials. The phase composition, micro-structure, grain size of the products were characterized by XRD, SEM, FESEM, TEM. The results show that good crystalline wurtzite structure γ-MnS could be synthesized when pH >6. As the pH value increasing, production of the microcrystalline γ-MnS increased, the particle size of the products became smaller and self-assembled into spherical crystallites with the particle size of 0.5 μm. UV-Visible spectra analysis shows that self-assembled spherical γ-MnS microcrystalline have a strong absorption in the ultraviolet spectrum between 300 nm and 400 nm. The optical band gap of the γ-MnS spherical microcrystals decreases as the pH values increasing which could have potential applications in photoelectric areas.关键词
微波水热法/γ-MnS微晶/光学带隙Key words
microwave hydrothermal method/γ-MnS microcrystalline/optical band gap分类
数理科学引用本文复制引用
辛宇,黄剑锋,曹丽云,刘佳,李嘉胤,吴建鹏..pH值对微波水热法制备γ-MnS微晶形貌及光学性能的影响[J].人工晶体学报,2012,41(2):312-317,6.基金项目
国家自然科学基金(50942047) （50942047）
陕西省教育厅自然科学专项基金(2010JK444) （2010JK444）
陕西省教育厅自然科学专项项目(11JK0820) （11JK0820）
陕西省教育厅自然科学专项基金(09JK361) （09JK361）
陕西科技大学研究生创新基金资助项目 （）
