摘要
Raman spectra of ZnO powders prepared by firing ZnO(2) 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 similar to 333 cm(-1) peak is ascribed to E(2) (high)-E(2) (low) and the similar to 661 cm(-1) peak to its overtone. In addition, a new interpretation for the observed Raman peaks between 400 and 500 cm(-1) in ZnO(2) powders was presented based on the IR data and ab initio calculation.
- 出版日期2008-11
- 单位北京大学