Advanced Materials

Cover image for Vol. 28 Issue 6

23_30/2011Core/Shell Nanowires: Reduction of Lattice Thermal Conductivity in Single Bi-Te Core/Shell Nanowires with Rough Interface (Adv. Mater. 30/2011)

Phonon scattering is maximized at a rough interface in Bi-Te core/shell structure nanowires, which is simply controlled by a conventional sputtering technique and temperature. On page 3414, Wooyoung Lee and co-workers report that rough interface Bi-Te core/shell nanowires exhibit lower thermal conductivities than those of their smooth interface counterparts, while electrical conductivities for these two types of nanowires are similar.

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