| 摘要 |
Provided are: heat-ray-shielding microparticles for enabling use of a communication device, imaging device, sensor, or the like which uses near-infrared light in a corresponding wavelength region through a structure, a heat-ray-shielding film or heat-ray-shielding glass, a dispersion, or a laminated transparent substrate, while exhibiting heat-ray-shielding characteristics; a heat-ray-shielding microparticle liquid dispersion containing the heat-ray-shielding microparticles; a heat-ray-shielding film or heat-ray-shielding glass; a heat-ray-shielding dispersion; and a heat-ray-shielding laminated transparent substrate. Provided are: composite tungsten oxide microparticles having a hexagonal crystal structure represented by the general formula AaMbWcOd, element A being one or more species of elements selected from Mo, Ru, Cr, Ni, V, Co, Fe, Mn, Ti, Ge, Sn, Ga, Pb, Bi, In, Sb, Pd, and Tl, M being one or more species of elements selected from alkali metals and alkaline earth metals, W being tungsten, O being oxygen, 0.001 ≤ a/b ≤ 0.1, and 0.20 ≤ b/(a + c) ≤ 0.61, and 2.2 ≤ d/(a + c) ≤ 3.0; and a heat-ray-shielding microparticle liquid dispersion which uses the heat-ray-shielding microparticles. |
