Manipulating atomic defects in plasmonic vanadium dioxide for superior solar and thermal management

Yujie Ke, Bikun Zhang, Tao Wang, Yaxu Zhong, Tuan Duc Vu, Shancheng Wang, Yang Liu, Shlomo Magdassi, Xingchen Ye, Dongyuan Zhao, Qihua Xiong, Zhimei Sun*, Yi Long*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Vanadium dioxide (VO2) is a unique active plasmonic material due to its intrinsic metal-insulator transition, remaining less explored. Herein, we pioneer a method to tailor the VO2 surface plasmon by manipulating its atomic defects and establish a universal quantitative understanding based on seven representative defective VO2 systems. Record high tunability is achieved for the localized surface plasmon resonance (LSPR) energy (0.66-1.16 eV) and transition temperature range (40-100 °C). The Drude model and density functional theory reveal that the charge of cations plays a dominant role in the numbers of valence electrons to determine the free electron concentration. We further demonstrate their superior performances in extensive unconventional plasmonic applications including energy-saving smart windows, wearable camouflage devices, and encryption inks.

Original languageAmerican English
Pages (from-to)1700-1710
Number of pages11
JournalMaterials Horizons
Volume8
Issue number6
DOIs
StatePublished - Jun 2021

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry.

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