Oxygen defect-induced small polaron transfer for controlling the near-infrared absorption coefficient of hexagonal cesium tungsten bronze nanocrystals

Shen，Boxu1; Wang，Yuanhao2; Lu，Lin1; Yang，Hongxing1

2021

10.1016/j.ceramint.2021.11.250

CERAMICS INTERNATIONAL   影响因子和分区

0272-8842

1873-3956

Hexagonal cesium tungsten bronze (CsWO) nanocrystals have attracted great attention in the field of energy-efficient windows, which exhibit the localized surface plasmon resonance (LSPR) effect and small polaron transfer in near-infrared radiation (NIR). The enhancement of the LSPR effect can be achieved by introducing aliovalent dopant into the crystal lattice, but the improvement of small polaron transfer remains a challenge. Herein, CsWO nanocrystals with oxygen defects were successfully prepared by a facile one-pot method. The introduction of oleylamine in the precursor can induce the formation of oxygen defects in the crystal lattice, which leads to a higher absorption coefficient. The spectrally selective coating prepared by CsWO nanocrystals with oxygen defects exhibited superior spectral selectivity with T, T, T, and T of 67.11%, 11.21%, 72.59% and 49.12%, respectively.

Absorption coefficient CsxWO3 nanocrystals Energy-efficient windows Oleylamine Oxygen defects Small polaron transfer

SCI ; EI

英语

通讯

TCS project of the Hong Kong Innovation and Technology Fund[UIT/139] ; National Natural Science Foundation of China[61705258]

Materials Science

Materials Science, Ceramics

WOS:000752879800003

ELSEVIER SCI LTD

20214811256507

Bronze ; Energy efficiency ; Infrared devices ; Infrared radiation ; Light absorption ; Oxygen ; Potassium

Energy Conservation:525.2 ; Copper Alloys:544.2 ; Tin and Alloys:546.2 ; Alkali Metals:549.1 ; Light/Optics:741.1 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Crystalline Solids:933.1

MATERIALS SCIENCE

2-s2.0-85120169553

Scopus

1.Renewable Energy Research Group (RERG),Department of Building Services Engineering,The Hong Kong Polytechnic University,Kowloon,Hong Kong
2.SUSTech Engineering Innovation Center,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Shen，Boxu,Wang，Yuanhao,Lu，Lin,et al. Oxygen defect-induced small polaron transfer for controlling the near-infrared absorption coefficient of hexagonal cesium tungsten bronze nanocrystals[J]. CERAMICS INTERNATIONAL,2021,48(5):6942-6947.

Shen，Boxu,Wang，Yuanhao,Lu，Lin,&Yang，Hongxing.(2021).Oxygen defect-induced small polaron transfer for controlling the near-infrared absorption coefficient of hexagonal cesium tungsten bronze nanocrystals.CERAMICS INTERNATIONAL,48(5),6942-6947.

Shen，Boxu,et al."Oxygen defect-induced small polaron transfer for controlling the near-infrared absorption coefficient of hexagonal cesium tungsten bronze nanocrystals".CERAMICS INTERNATIONAL 48.5(2021):6942-6947.