热电效应
纳米线
塞贝克系数
热电材料
材料科学
凝聚态物理
功勋
功率因数
量化(信号处理)
纳米尺度
工作(物理)
纳米技术
物理
功率(物理)
光电子学
量子力学
计算机科学
计算机视觉
作者
Jane E. Cornett,Oded Rabin
摘要
A model for the thermoelectric properties of nanowires was used to demonstrate the contrasting influences of quantization and degeneracy on the thermoelectric power factor. The prevailing notion that quantum confinement benefits the thermoelectric power factor is supported by the model when a single-subband dominates transport. When transport involves multiple subbands, the thermoelectric power factor in fact decreases (to ∼62% of the bulk value) as the wire radius is initially reduced. This work correctly models the power factor for wire sizes ranging from the nanoscale to bulk and settles the discrepancies between theoretical and measured thermoelectric power factors in nanowires and other nanoscale systems.
科研通智能强力驱动
Strongly Powered by AbleSci AI