Acta Phys. -Chim. Sin. ›› 1995, Vol. 11 ›› Issue (07): 587 -589.doi: 10.3866/PKU.WHXB19950704
• Communication •
Yu Bao-Long,Zhang Gui-Lan,Tang Guo-Qing,Wu Xiao-Chun,Chen Wen-Ju
The microemulsion method for preparing ZnO nanocrystallites was reported. Through measuring ZnO microcrystllite ESR spectra, we found that at room temperature it has a significant ESR signal and its intensity descends with the increase of annealed temperature. This result is in contrast with that of bulk ZnO which is a diamagnetic material and no ESR signal. Finally it was found and verified that on the surfaces of ZnO nanocrystallites there are a lot of oxygen vacancies and defects which trap electrons and form paramagnetic centers to provide the observed ESR signal.
Electronic spin resonance,
Yu Bao-Long,Zhang Gui-Lan,Tang Guo-Qing,Wu Xiao-Chun,Chen Wen-Ju. Electronic Spin Resonance Properties of ZnO Nanocrystallite[J].Acta Phys. -Chim. Sin., 1995, 11(07): 587 -589.
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