title: Phonon Trapping in Pearl-Necklace-Shaped Silicon Nanowires.
abstract: A pearl-necklace-shaped silicon nanowire, in contrast to a smooth nanowire, presents a much lower thermal conductivity due to the phonon trapping effect. By precisely controlling the pearl size and density, this reduction can be more than 70% for the structures designed in the study, which provides a unique approach for designing high-performance nanoscale thermoelectric devices.
authors.affiliation: Key Laboratory of Intelligent Nano Materials and Devices of MOE, State Key Laboratory of Mechanics and Control of Mechanical Structures, Institute of Nano Science of Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
authors.forename: Chunyang
authors.initials: C
authors.lastname: Miao
authors.affiliation: Key Laboratory of Intelligent Nano Materials and Devices of MOE, State Key Laboratory of Mechanics and Control of Mechanical Structures, Institute of Nano Science of Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
authors.forename: Guoan
authors.initials: G
authors.lastname: Tai
authors.affiliation: Key Laboratory of Intelligent Nano Materials and Devices of MOE, State Key Laboratory of Mechanics and Control of Mechanical Structures, Institute of Nano Science of Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
authors.forename: Jianxin
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Key Laboratory of Intelligent Nano Materials and Devices of MOE, State Key Laboratory of Mechanics and Control of Mechanical Structures, Institute of Nano Science of Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
authors.forename: Wanlin
authors.initials: W
authors.lastname: Guo
keywords: pearl necklace morphology; phonon trapping; silicon nanowires; thermal conductivity; thermoelectricity