【摘要】 利用ZnO2热分解方法制备的ZnO粉末的拉曼光谱,通过分析不同加热温度下所得样品强激光烧蚀后拉曼峰位的差异并对比其他方法所制样品的光谱,指出333 cm-1拉曼峰应当归结为E2(high)和E2(low)的差频,而661 cm-1峰为其二倍频。此外,在量化计算和红外光谱的辅助下,对文献中关于ZnO2粉末在400～500 cm-1之间所观测到的拉曼峰的指认提出了不同看法。更多还原

【Abstract】 Raman spectra of ZnO powders prepared by firing ZnO2 precipitate were reported in detail for the first time.By comparing the spectra with that of the sample fabricated by another method and analyzing frequency difference between the focused-laser irradiated samples with different firing temperature in preparation, it was concluded that the ～333 cm-1 peak is ascribed to E2(high)E2(low) and the ～661 cm-1 peak to its overtone.In addition,a new interpretation for the observed Raman peaks between 400 and 500 cm-1 in ZnO2 powders was presented based on the IR data and ab initio calculation.更多还原