Post-temperable nanocrystal electrochromic devices

    公开(公告)号:US10359680B2

    公开(公告)日:2019-07-23

    申请号:US15839421

    申请日:2017-12-12

    Abstract: An electrochromic device may include a working electrode that includes a high temperature stable material and nanoparticles of an active core material, a counter electrode, and an electrolyte deposited between the working electrode and the counter electrode. The high temperature stable material may prevent fusing of the nanoparticles of the active core material at temperatures up to 700° C. The high temperature stable material may include tantalum oxide. The high temperature stable material may form a spherical shell or a matrix around the nanoparticles of the active core material. A method of forming an electrochromic device may include depositing a working electrode onto a first substrate, in which the working electrode comprises a high temperature stable material and nanoparticles of an active core material, and heat tempering the working electrode and the first substrate.

    Electrochromic device containing color-tunable nanostructures

    公开(公告)号:US10983409B2

    公开(公告)日:2021-04-20

    申请号:US15754921

    申请日:2016-08-15

    Abstract: An electrochromic device and method, the device including: a first transparent conductor layer; a working electrode disposed on the first transparent conductor layer and including nanostructures; a counter electrode; a solid state electrolyte layer disposed between the counter electrode and the working electrode; and a second transparent conductor layer disposed on the counter electrode. The nanostructures may include transition metal oxide nanoparticles and/or nanocrystals configured to tune the color of the device by selectively modulating the transmittance of near-infrared (NIR) and visible radiation as a function of an applied voltage to the device.

    Electrochromic privacy window
    5.
    发明授权

    公开(公告)号:US10331003B2

    公开(公告)日:2019-06-25

    申请号:US15713045

    申请日:2017-09-22

    Abstract: An electrochromic (EC) privacy window includes an EC pane unit including a first EC device having a bright state and a dark state, and a privacy device facing the EC pane unit and having a bright state and a privacy state configured to attenuate visible radiation transmitted through the window. In some embodiments, when the privacy device is in the privacy state, the window has transmitted haze of greater that 80%. In other embodiments, when the privacy device is in the privacy state and the first EC device is in the dark state, the window has a visible transmittance of about 0.1% or less.

    ELECTROCHROMIC DEVICE CONTAINING COLOR-TUNABLE NANOSTRUCTURES

    公开(公告)号:US20210240048A1

    公开(公告)日:2021-08-05

    申请号:US17205787

    申请日:2021-03-18

    Abstract: An electrochromic device and method, the device including: a first transparent conductor layer; a working electrode disposed on the first transparent conductor layer and including nanostructures; a counter electrode; a solid state electrolyte layer disposed between the counter electrode and the working electrode; and a second transparent conductor layer disposed on the counter electrode. The nanostructures may include transition metal oxide nanoparticles and/or nanocrystals configured to tune the color of the device by selectively modulating the transmittance of near-infrared (NIR) and visible radiation as a function of an applied voltage to the device.

    Temperature control for electrochromic devices

    公开(公告)号:US11079650B2

    公开(公告)日:2021-08-03

    申请号:US16420569

    申请日:2019-05-23

    Abstract: Various embodiments may include methods of controlling a temperature of an electrochromic device. The methods may include determining a current temperature of the electrochromic device which includes a first transparent conductor electrically connected to a working electrode, and a second transparent conductor electrically connected to a counter electrode, and applying the heating current to the first transparent conductor and the second transparent conductor if the current temperature is below a minimum temperature to heat the electrochromic device. Further embodiments may include an electrochromic system including an electrochromic device and a controller configured to control the temperature of the electrochromic device.

    ELECTROCHROMIC DEVICE INCLUDING LITHIUM-RICH ANTI-PEROVSKITE MATERIAL

    公开(公告)号:US20190324340A1

    公开(公告)日:2019-10-24

    申请号:US16386390

    申请日:2019-04-17

    Abstract: An electrochromic (EC) device and method, the EC device including: an optically transparent first substrate; a working electrode disposed on the first substrate and including electrochromic nanoparticles and a flux material having a melting point ranging from about 25° C. to about 500° C.; and an electrolyte disposed on the working electrode. The flux material is configured to prevent or reduce sintering of the nanoparticles at a temperature of up to about 700° C.

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