Abstract: A method is directed to modifying the color in transmission of an optical system that incorporates an electrochromic device. Such a modified optical system makes it possible to combine the notions of effectiveness in the chromatic variation on the one hand, and of limitation of losses in light transmission on the other hand.

Abstract: Various embodiments disclosed herein relate to techniques for simultaneously designing optical and electrical properties of an electrochromic device by tuning specific parameters of the electrochromic device. One or more models representing respective relationships of the optical and electrical properties with respect to the individual ones of the parameters of the device may be obtained. Given specific values of the optical and/or electrical properties, at least one of the parameters may be adjusted to simultaneously control the optical and electrical properties according to the given specific values.

Abstract: The color of an electrochromic stack in a tinted state may be modified to achieve a desired color target by utilizing various techniques alone or in combination. A first approach generally involves changing a coloration efficiency of a WOx electrochromic (EC) layer by lowering a sputter temperature to achieve a WOx microstructural change in the EC layer. A second approach generally involves utilizing a dopant (e.g., Mo, Nb, or V) to improve the neutrality of the tinted state of WOx (coloration efficiency changes). A third approach generally involves tailoring a thickness of the WOx layer to tune the color of the tinted stack.

Abstract: An optical system includes an optical assembly including a substrate having two opposite main faces and an electrochemical functional device with electrically controllable optical and/or energetic properties formed on a main face, this optical assembly having an initial color state with an initial color value in reflection at a first reflection angle, a coating for controlling color in reflection formed on the other main face and forming an external face of the system, the optical system having a final color state with a final color value in reflection at this first angle, this final color state being closer than the initial color state to a reference color state having a reference color value at the first angle, this corresponding to a variation in color distance between the initial and reference values, and between the final color and the reference values smaller than 0 at the first angle.

Abstract: An system includes an optical element including a glazing-function substrate and an electrochromic stack formed on this substrate, this electrochromic stack including a first transparent conductive layer, a working electrode arranged above the first transparent conductive layer, a counter-electrode arranged above said working electrode, a second transparent conductive layer arranged above the counter-electrode, lithium ions introduced into the electrochromic stack, and optionally a separate layer of an ionic conductor, the latter layer being intermediate between the electrode and the counter-electrode, a protective layer arranged on the electrochromic stack, the protective layer including an inorganic lubricating compound.

Abstract: A cathodic subassembly for an electrochromic system, suitable for being deposited on top of a substrate having a glass function, includes a first transparent conductive layer, and a working electrode, arranged on top of the first transparent conductive layer, wherein the working electrode is suitable, by virtue of its chemical composition, for being functional after thermal tempering.

Abstract: An electrochromic device and method of forming the same is disclosed. The electrochromic device can include a first transparent conductive layer, an electrochromic layer, an electrolyte layer, a counter electrode layer, a second transparent conductive layer, and an adhesion layer between the counter electrode layer and the second transparent conductive layer, where the electrochromic device can undergo at least 2,000 cycles in a Nylon brush test before type 2 defects form. The method can include depositing an electrochromic layer over a first transparent conductive layer, depositing an electrolyte layer, depositing a lithium layer, depositing a counter electrode layer over the lithium layer, depositing a second transparent conductive layer, and heating the layers to form an electrochromic stack, where the lithium layer is combined with the counter electrode layer.

Abstract: The color of an electrochromic stack in a tinted state may be modified to achieve a desired color target by utilizing various techniques alone or in combination. A first approach generally involves changing a coloration efficiency of a WOx electrochromic (EC) layer by lowering a sputter temperature to achieve a WOx microstructural change in the EC layer. A second approach generally involves utilizing a dopant (e.g., Mo, Nb, or V) to improve the neutrality of the tinted state of WOx (coloration efficiency changes). A third approach generally involves tailoring a thickness of the WOx layer to tune the color of the tinted stack.

Abstract: A method is directed to modifying the color in transmission of an optical system that incorporates an electrochromic device. Such a modified optical system makes it possible to combine the notions of effectiveness in the chromatic variation on the one hand, and of limitation of losses in light transmission on the other hand.

Abstract: The photoluminescence internal quantum efficiency of nanoparticles formed in all or part of a nanocrystal of AgxMyM?zS0.5x+y+1.5z (I) type, including at least the stages in: (1) having available nanoparticles formed in all or part of a nanocrystal, the chemical composition of which corresponds to the formula (I): AgxMyM?zS0.5x+y+1.5z (I); the nanoparticles being functionalized at the surface by an organic ligand L1 different from a ligand of phosphine type; wherein the nanocrystals having the chemical composition of formula (I) are prepared beforehand via a process employing only a single stage of heat treatment; and (2) bringing together the nanoparticles and at least one ligand compound L2 of phosphine type of general formula PR3 (II), or its oxidized form O?PR3 (II?), under conditions favorable to an exchange, at least in part, of the organic ligands L1 by said ligands of phosphine type L2.