Krahne Roman, Chilla Gerwin, Schüller Christian, Carbone Luigi, Kudera Stefan, Mannarini Gianandrea, Manna Liberato, Heitmann Detlef, Cingolani Roberto
National Nanotechnology Laboratory of CNR-INFM c/o Istituto Superiore Universitario di Formazione Interdisciplinare, Università di Lecce, Via per Arnesano, 73100 Lecce, Italy.
Nano Lett. 2006 Mar;6(3):478-82. doi: 10.1021/nl0524492.
We investigated CdTe nanocrystal tetrapods of different sizes by resonant inelastic light scattering at room temperature and under cryogenic conditions. We observe a strongly resonant behavior of the phonon scattering with the excitonic structure of the tetrapods. Under resonant conditions we detect a set of phonon modes that can be understood as confined longitudinal-optical phonons, surface-optical phonons, and transverse-optical phonons in a nanowire picture.
我们在室温及低温条件下，通过共振非弹性光散射研究了不同尺寸的碲化镉纳米晶四足体。我们观察到声子散射与四足体的激子结构之间存在强烈的共振行为。在共振条件下，我们检测到一组声子模式，在纳米线模型中可将其理解为受限纵向光学声子、表面光学声子和横向光学声子。
