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24 条记录 (耗时 0.025 秒)

    Realization of a thin film solar cell with a detached reflector
    2.
    发明授权
    Realization of a thin film solar cell with a detached reflector 失效
    用分离的反射镜实现薄膜太阳能电池

    公开(公告)号：US4497974A

    公开(公告)日：1985-02-05

    申请号：US443197

    申请日：1982-11-22

    申请人： Harry W. Deckman ,  Horst Witzke ,  Christopher Wronski

    发明人： Harry W. Deckman ,  Horst Witzke ,  Christopher Wronski

    IPC分类号： H01L31/04 ,  H01L31/0216 ,  H01L31/052 ,  H01L31/06

    CPC分类号： H01L31/0236 ,  H01L31/02168 ,  H01L31/056 ,  Y02E10/52

    摘要： The present invention is an optically enhanced solar cell having a detached reflector. The optically enhanced solar cell includes a semiconductor material bounded on each side by transparent electrical contacts and an optional antireflection coating with the surface of at least one of these layers being textured. Light is reflected in the cell by a reflector which is detached (i.e., spaced) from the enhanced cell using a layer of dielectric material.

    摘要翻译： 本发明是具有分离反射器的光学增强型太阳能电池。 光学增强的太阳能电池包括通过透明电触点在每一侧上界定的半导体材料和任选的抗反射涂层，其中至少一层的表面被纹理化。 光通过使用电介质材料层与增强电池分离（即间隔开）的反射器在电池中反射。

    Electrochromic cell with protective overcoat layer
    4.
    发明授权
    Electrochromic cell with protective overcoat layer 失效
    具有保护性过氧化物层的电致细胞

    公开(公告)号：US4120568A

    公开(公告)日：1978-10-17

    申请号：US758734

    申请日：1977-01-12

    申请人： Satyendra Kumar Deb ,  Horst Witzke

    发明人： Satyendra Kumar Deb ,  Horst Witzke

    IPC分类号： G02F1/153 ,  G02F1/00

    CPC分类号： G02F1/1533 ,  G02F2001/1536

    摘要： An electrochromic device having an electrochromic layer and an electrolyte sandwiched between electrodes. A charge compensator ion permeable layer is interposed between the electrochromic layer and the electrolyte. The latter-mentioned interposing layer serves as a protective overcoat for the electrochromic layer and minimizes the structural decay of the cell which might otherwise occur. SUFIELD OF THE INVENTIONThe present invention relates to electrochromic devices and, more particularly, to such a device having a protective overcoat layer interposed between an electrochromic layer and an electrolyte.BRIEF DESCRIPTION OF THE PRIOR ARTThe prior art has recognized the usefulness of electrochromic devices wherein the electromagnetic absorption characteristics may be reversibly altered by a controlled electric field. The device is particularly useful as a display device or in light valve-type applications.U.S. Pat. No. 3,708,220 issued to Meyers describes a device which consists of an electrochromic material in contact with a semisolid electrolyte gel sandwiched between a pair of electrodes. U.S. Pat. No. 28,188, issued to Deb et al, discloses a completely solid state electrochromic device which utilizes a current carrier permeable layer positioned between an electrochromic layer and a conductive layer. The reissue patent states that the structure set forth therein is an improvement over basic electrochromic cells that had previously included only an electrochromic layer sandwiched between two conductive layers. In U.S. Pat. No. 3,840,287, issued to Witzke et al, there is an electrochromic device which is described as including two electrochromic layers in different states and an electrolyte layer which is not limited to semisolid gels. In the Meyers and Witzke patents, the structure included an electrolyte or color assisting agent, respectively, which is described as being in direct contact with an electrochromic layer. This contact was thought necessary to insure ionic charge transport from the electrolyte to the electrochromic layer. However, these prior art structures have been found to lack a certain desirable cycling capability of lifetime due to an observable decay in the cell due to a deterioration of the electrochromic layer -- electrolyte interface, which is due to the contact therebetween.BRIEF DESCRIPTION OF THE PRESENT INVENTIONThe present invention relates to a novel structure for extending the life of an electrochromic device, having an electrolyte or color assisting agent, by interposing a protective overcoat layer between the electrolyte or color assisting agent and the electrochromic layer. More particularly, the electrochromic device comprises a pair of electrodes, there being between the electrodes at least one layer of electrochromic material, an electrolyte layer, and a protective overcoat layer between the electrochromic layer and the electrolyte layer. The protective overcoat layer is a substantially insulating dielectric layer. Normally, one would expect that the placement of a substantially insulating dielectric layer separating the electrochromic layer and the electrolyte would inhibit the necessary current flow of the device and be detrimental to the normal operation of the device. Contrary to this, an unexpected synergistic result is obtained. It has been discovered that the insertion of certain substantially insulating materials in the form of thin films not only does not adversely affect the operation of the device, but rather substantially increases the life of the device by inhibiting attack and degradation of the electrochromic layer.

    Electrical steels and method for producing same
    7.
    发明授权
    Electrical steels and method for producing same 失效
    电工钢及其制造方法

    公开(公告)号：US5200145A

    公开(公告)日：1993-04-06

    申请号：US729246

    申请日：1991-07-12

    申请人： Richard C. Krutenat ,  Robert S. Barnard ,  John P. Dismukes ,  Bernard H. Kear ,  Horst Witzke

    发明人： Richard C. Krutenat ,  Robert S. Barnard ,  John P. Dismukes ,  Bernard H. Kear ,  Horst Witzke

    IPC分类号： C23C10/46

    CPC分类号： C23C10/46

    摘要： The present invention relates to a novel process for producing silicon and/or aluminum containing iron alloy product as well as the material produced from same in either sheet or bulk structure form for electromagnetic circuit application. The process entails modifying an iron feedstock containing less than about 2.5 wt % silicon, aluminum or a combination thereof. The process further consists of diffusion of silicon or silicon and aluminum or aluminum into an iron feedstock by a pack diffusion or a chemical vapor deposition method in which the iron feedstock is heated to a temperature at which diffusion occurs in the presence of a pack containing silicon and/or aluminum sources, a reducing agent, a catalyst, and a filler, or in the presence of a flowing gas stream containing a volatile silicon compound. The resulting iron alloy product, which has a silicon content in the range of 0.25%--7% silicon, and an aluminum content in the range of about 0%--4% aluminum, has favorable properties for motor and transformer applications.

    摘要翻译： 本发明涉及用于生产含硅和/或铝的铁合金产品的新方法以及用于电磁电路应用的以片或块结构形式制造的材料的材料。 该方法需要修饰含有小于约2.5重量％硅，铝或其组合的铁原料。 该方法还包括将硅或硅和铝或铝通过包装扩散或化学气相沉积方法扩散到铁原料中，其中将铁原料加热至在含硅包的存在下发生扩散的温度 和/或铝源，还原剂，催化剂和填料，或在含有挥发性硅化合物的流动气流的存在下。 所得到的铁含量在0.25％-7％硅中，铝含量在约0％-4％铝范围内的铁合金产品具有用于电动机和变压器应用的良好性能。

    Photogalvanic cell having a charge storage layer with varying performance characteristics
    10.
    发明授权
    Photogalvanic cell having a charge storage layer with varying performance characteristics 失效
    具有具有不同性能特征的电荷存储层的光电池

    公开(公告)号：US4084043A

    公开(公告)日：1978-04-11

    申请号：US706079

    申请日：1976-07-16

    申请人： Horst Witzke ,  Satyendra Kumar Deb

    发明人： Horst Witzke ,  Satyendra Kumar Deb

    IPC分类号： H01G9/20 ,  H01M14/00 ,  H01M6/30 ,  H01M6/36

    CPC分类号： H01G9/20 ,  H01M14/005

    摘要： A charge storing photogalvanic cell including spaced electrode and counterelectrode "sandwiching" a charge storage layer and a compensating layer. Various dopants to the charge storage layer have been determined to vary cell performance as follows: increasing photosensitivity and charge retention; increasing electrical response; increasing device life; decreasing charge retention; changing optical absorption of charge storage layer; or localizing destruction of charge storage capability.

    摘要翻译： 一种存储光电池的电荷，包括间隔开的电极和反电极“夹持”电荷存储层和补偿层。 已经确定电荷存储层的各种掺杂剂如下改变电池性能：提高光敏性和电荷保持率; 增加电气响应; 增加设备寿命; 降低电荷保留率 改变电荷存储层的光吸收; 或本地化电荷存储能力的破坏。