Synthesis and optical properties of PbMoO4 nanoplates

• 来源期刊: 中国光学快报(英文版)
• 学科: 化学
• 关键词: 纳米粒子 钼酸铅 傅立叶变换红外光谱 光学性质 场发射扫描电子显微镜 X射线衍射仪 光致发光光谱 合成
• 年，卷（期）: 2010,（12）
• 所属期刊栏目: Materials
• 页码范围: 1152-1155
• 页数: 4页
• 分类号: O614.612 TB383
• 语种: 英文

摘要

Nanometer sized lead molybdate (PbMoO4) plates are prepared through conventional hydrothermal together with sonochemical methods. The plates are then characterized using field-emission scanning electron microscopy, X-ray diffractometry, Fourier transform infrared (FTIR) spectrometry, photoluminescence spectrometry, and ultraviolet-visible (UV-VIS) spectrometry. The results indicate that the nanoplates have a characteristically narrow particle size distribution and their tetragonal scheelite-type structure is confirmed by both X-ray diffractometry and FTIR spectrometry. When the nanoplates are compared with the corresponding bulk crystals, blue shifts in their photoluminescence peaks, wider optical band gaps, and the broadening of the X-ray diffractometer peaks are observed. These can be ascribed to the decrease in crystal size.