Collective Fluorescence Oscillation in a Water Dispersion of Colloidal Quantum Dots
Collective Fluorescence Oscillation in a Water Dispersion of Colloidal Quantum Dots
复制标题
胶体量子点水分散体中的集体荧光振荡
DOI：
10.1143/jjap.42.l310
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发表时间：
2003
影响因子：
1.5
通讯作者：
Y. Yamaguchi
中科院分区：
文献类型：
--
作者：
Noriko Eiha;S. Maenosono;K. Hanaki;Kenji Yamamoto;Y. Yamaguchi
CdSe/ZnS核壳量子点（QDs）在连续激发下的水色散中观察到集体荧光振荡。振荡行为主要取决于量子点聚集体的存在，振荡频率和振幅受聚集体中粒子间距离、分散温度、pH和离子种类的影响。这种振荡是由于粒子间和聚集体间相互作用而产生的一种合作现象。
Collective fluorescence oscillation is observed in a water dispersion of CdSe/ZnS core/shell quantum dots (QDs) under continuous excitation. The oscillatory behavior depends mainly on the existence of aggregates of QDs, and oscillation properties such as frequency and amplitude are influenced by interparticle distance in an aggregate, dispersion temperature, pH and ionic species. This oscillation is a cooperative phenomenon that develops due to both interparticle and interaggregate interactions.