SINGLE ACTIVE LAYER ELECTROCHROMIC DEVICES

    公开(公告)号:US20220308417A1

    公开(公告)日:2022-09-29

    申请号:US17838443

    申请日:2022-06-13

    IPC分类号: G02F1/1516 C09K9/02 G02F1/163

    摘要: In one embodiment, an electrochromic device includes a single active layer configured to be alternately placed in a light-transmitting state in which relatively large amounts of light can be transmitted through the active layer and a light-blocking state in which relatively small amounts of light can be transmitted through the active layer, wherein the device comprises no other layers of material that contribute to transitioning between the two states

    Microencapsulated thermochromic materials and uses thereof

    公开(公告)号:US11359137B2

    公开(公告)日:2022-06-14

    申请号:US16610107

    申请日:2018-05-03

    摘要: A variety of particles forming microencapsulated thermochromic materials are provided. The particles can include a thermochromic core and a metal oxide shell encapsulating the thermochromic core. The thermochromic core can include one or both of an organic thermochromic material and an inorganic salt thermochromic material. In some aspects, the particles include a dye selected from a crystal violet lactone dye, a fluoran dye, and a combination thereof. In still further aspects, the particles include a color developer selected from a hydroxybenzoate, a 4, 4′-dihydroxydiphenyl propane, a hydroxycoumarin derivative, a lauryl gallate, and a combination thereof. In some aspects, the metal oxide shell is a TiO2 shell. The particles can be used in cements and paints and for a variety of building materials. Methods of making the particles and building materials and methods of use, for example, for removing a volatile organic carbon from a building material, are also provided.