Abstract: Provided is an infrared radiation blocking material including a plurality of microspheres. The particle size of each of the microspheres is 1000 nm to 2600 nm. The microspheres have a light transmittance of at least 50% within the light wavelength range of 400 nm to 700 nm and have a blocking rate of greater than 40% within the light wavelength range of 700 nm to 1500 nm.

Abstract: Provided is a sun protection material including a plurality of polystyrene microspheres and a plurality of refractive layers. The polystyrene microspheres have a particle size of 150 nm to 300 nm. Surfaces of the polystyrene microspheres are at least partially covered by the refractive layers. The sun protection material can scatter a light in a wavelength range between 250 nm and 400 nm. A sun protection composition containing the sun protection material also may scatter a light of a wavelength range between 250 nm and 400 nm, such that the UV protection of the sun protection composition is enhanced.

Abstract: Provided is a sun protection composition including a UV absorber and a plurality of porous titanium dioxide microspheres. The UV absorber absorbs light of at least one of UVA radiation and UVB radiation. The particle size of the porous titanium dioxide microspheres is 100 nm to 300 nm, and the porous titanium dioxide microspheres can scatter light in a wavelength range between 200 nm and 400 nm. A cosmetic and a fabric containing the sun protection composition can also scatter light in a wavelength range between 200 nm and 400 nm, such that the UV protection capability of the cosmetic and the fabric is enhanced.

Abstract: A photoelectric conversion material is disclosed in the present invention and comprises at least a cone material. The cone material is composed of an isomer and comprises a plurality of grains. The sizes of the grains are arranged from smaller ones to larger ones along a direction. In the meantime, a method for fabricating the above photoelectric conversion material is also disclosed here. The method comprises the following steps. First, a precursor is provided. The precursor comprises at least a cone material and the cone material is a multilayer structured material, such as sodium titanate and potassium titanate, formed by stacking first materials and second materials. And then, the precursor is annealed to let the second materials leave from the cone material, and the cone material becomes the above photoelectric conversion material with a plurality of grains.

Abstract: A photoelectric conversion material is disclosed in the present invention and comprises at least a cone material. The cone material is composed of an isomer and comprises a plurality of grains. The sizes of the grains are arranged from smaller ones to larger ones along a direction. In the meantime, a method for fabricating the above photoelectric conversion material is also disclosed here. The method comprises the following steps. First, a precursor is provided. The precursor comprises at least a cone material and the cone material is a multilayer structured material, such as sodium titanate and potassium titanate, formed by stacking first materials and second materials. And then, the precursor is annealed to let the second materials leave from the cone material, and the cone material becomes the above photoelectric conversion material with a plurality of grains.

Abstract: A photoelectric conversion material is disclosed in the present invention and comprises at least a cone material. The cone material is composed of an isomer and comprises a plurality of grains. The sizes of the grains are arranged from smaller ones to larger ones along a direction. In the meantime, a method for fabricating the above photoelectric conversion material is also disclosed here. The method comprises the following steps. First, a precursor is provided. The precursor comprises at least a cone material and the cone material is a multilayer structured material, such as sodium titanate and potassium titanate, formed by stacking first materials and second materials. And then, the precursor is annealed to let the second materials leave from the cone material, and the cone material becomes the above photoelectric conversion material with a plurality of grains.

Abstract: A method for manufacturing a switchable PBD includes filling a plurality of first-type particles and a plurality of second-type particles into each cell, where the plurality of first-type particles carries charges of a first charge polarity having a first charge density and the plurality of second-type particles is substantially electrically neutral, or carries charges having a second charge density that is substantially lower than the first charge density of the first-type particles, and filling a fluid into each cell, where the fluid comprises a charge controlling agent having a second charge polarity opposite to the first charge polarity, and the charge controlling agent has a substantially selective wettability, absorbability or adsorbability on the plurality of second-type particles. As such, at least part of the plurality of second-type particles is charged to have the second charge polarity in each cell.

Abstract: A method for manufacturing a switchable PBD includes filling a plurality of first-type particles and a plurality of second-type particles into each cell, where the plurality of first-type particles carries charges of a first charge polarity having a first charge density and the plurality of second-type particles is substantially electrically neutral, or carries charges having a second charge density that is substantially lower than the first charge density of the first-type particles, and filling a fluid into each cell, where the fluid comprises a charge controlling agent having a second charge polarity opposite to the first charge polarity, and the charge controlling agent has a substantially selective wettability, absorbability or adsorbability on the plurality of second-type particles. As such, at least part of the plurality of second-type particles is charged to have the second charge polarity in each cell.

Abstract: The present invention provides a switchable imaging device, including a plurality of particles suspended in a dielectric medium, at least part of the particles being charged, at least part of the particles being mesoporous particles.