Tungsten oxide coating material for electrochromic device, tungsten oxide thin film, and light control member
AssigneesNational Institute of Advanced Industrial Science and Technology, Toshiba Materials Co., Ltd.
InventorsKazuki TAJIMA, Daisuke FUKUSHI, Shuichi SAITO
Life of this patent
Estimating the term…
Abstract
A tungsten oxide coating material for an electrochromic device that is a coating material for forming a tungsten oxide thin film having electrochromic characteristics, the coating material comprising: a solvent; tungsten oxide nanoparticles dispersed in the solvent; and a binder, wherein in the tungsten oxide nanoparticles, a half-value width of a peak detected at 29°±1° in X-ray diffraction analysis (20) is 2° or less, and a primary particle size is 5 to 25 nm.
Claims11
A tungsten oxide coating material for an electrochromic device that is a coating material for forming a tungsten oxide thin film having electrochromic characteristics, the coating material comprising:
- a solvent;
- tungsten oxide nanoparticles dispersed in the solvent;
- and
- a binder, wherein
- in the tungsten oxide nanoparticles, a half-value width of a peak detected at 29°±1° in X-ray diffraction analysis (2θ) is 2° or less, and a primary particle size is 5 to 25 nm.
A tungsten oxide thin film that is a thin film having electrochromic characteristics, the tungsten oxide thin film comprising:
- tungsten oxide nanoparticles;
- and
- a binder, wherein
- in the tungsten oxide nanoparticles,
- a half-value width of a peak detected at 29°±1° in X-ray diffraction analysis (2θ) is 2° or less, and
- a primary particle size is 5 to 25 nm.
Dependencies are inferred from the claim text.