Nanothermochromics with VO2-based core-shell structures: Calculated luminous and solar optical properties

被引：88

作者：

Li, S. -Y. ^{[1
]}

Niklasson, G. A. ^{[1
]}

Granqvist, C. G. ^{[1
]}

机构：

[1] Uppsala Univ, Angstrom Lab, Dept Engn Sci, SE-75121 Uppsala, Sweden

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 11期

基金：

瑞典研究理事会;

关键词：

HOLLOW NANOSPHERES; HYDROTHERMAL SYNTHESIS; NANOPARTICLES; DEPOSITION; MICROCRYSTALS; FABRICATION; ABSORPTION; TRANSITION; PARTICLES; FEATURES;

D O I：

10.1063/1.3592350

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Composites including VO2-based thermochromic nanoparticles are able to combine high luminous transmittance T-lum with a significant modulation of the solar energy transmittance Delta T-sol at a "critical" temperature in the vicinity of room temperature. Thus nanothermochromics is of much interest for energy efficient fenestration and offers advantages over thermochromic VO2-based thin films. This paper presents calculations based on effective medium theory applied to dilute suspensions of core-shell nanoparticles and demonstrates that, in particular, moderately thin-walled hollow spherical VO2 nanoshells can give significantly higher values of Delta T-sol than solid nanoparticles at the expense of a somewhat lowered T-lum. This paper is a sequel to a recent publication [S.-Y. Li, G. A. Niklasson, and C. G. Granqvist, J. Appl. Phys. 108, 063525 (2010)]. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3592350]

引用

页数：5