期刊
ACS NANO
卷 7, 期 4, 页码 3332-3340出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn400833d
关键词
quantum well; self-assembling; collective properties; nanocrystals; photoluminescence; phonon; polaron
类别
资金
- University Pierre et Marie Curie. B. Dubertret
- Agence Nationale de la Recherche
We show that colloidal nanoplatelets can self-assemble to form a 1D superlattice. When self-assembled, an additional emission line appears in the photoluminescence spectrum at low temperatures. This emission line is a collective effect, greatly enhanced when the NPLs are self-assembled. It is attributed to the longitudinal optical (LO) phonon replica of the band-edge exciton, and its presence in self-assembled nanoplatelets is explained using a model based on an efficient photons reabsorption between neighboring nanoplatelets. The presence of phonon replica at low temperatures in ensemble measurements suggests the possibility to design a laser, based on self-assembled nanoplatelets.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据