摘要
It is found that the SnO2 nanometer particle modified by chemical methods on its surface with a layer of steric acid molecules has a significant red shift of optical absorption band edge and clear photoluminescence at room temperature, which is in contrast with that of bulk SnO2 and naked SnO2 nanometer particles. It is concluded that these results are related to the dielectric confinement effects on the SnO2 nanometer particles surfaces.
It is found that the SnO2 nanometer particle modified by chemical methods on its surface with a layer of steric acid molecules has a significant red shift of optical absorption band edge and clear photoluminescence at room temperature, which is in contrast with that of bulk SnO2 and naked SnO2 nanometer particles. It is concluded that these results are related to the dielectric confinement effects on the SnO2 nanometer particles surfaces.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1994年第2期103-106,共4页
Acta Physico-Chimica Sinica
基金
国家自然科学基金
关键词
介电限域效应
纳米微粒
氧化锡
Dielectric confinement effect, SnO_2 nanometer particle,Surface modification
