二维氧化物超晶格中分数层控制的热功率增强。

Thermopower enhancement by fractional layer control in 2D oxide superlattices.

机构信息

Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA; Department of Physics, Sungkyunkwan University, Suwon, 440-746, Korea; Center for Integrated Nanostructure Physics, Institute of Basic Science (IBS), Sungkyunkwan University, Suwon, 440-746, Korea.

出版信息

Adv Mater. 2014 Oct 22;26(39):6701-5. doi: 10.1002/adma.201401676. Epub 2014 Jul 25.

DOI:10.1002/adma.201401676

PMID:25066105

Abstract

Precise tuning of the 2D carrier density by using fractional δ-doping of d electrons improves the thermoelectric properties of oxide heterostructures. This promising result can be attributed to the anisotropic band structure in the 2D system, indicating that δ-doped oxide superlattices are good candidates for advanced thermoelectrics.

摘要

通过使用 d 电子的分数 δ 掺杂来精确调整 2D 载流子密度，可以改善氧化物异质结构的热电性能。这一有前景的结果可以归因于 2D 系统中的各向异性能带结构，表明 δ 掺杂氧化物超晶格是先进热电材料的良好候选材料。