公开(公告)号：WO2012061023A1

公开(公告)日：2012-05-10

申请号：PCT/US2011/057000

申请日：2011-10-20

Applicant: IMRA AMERICA, INC. ,  GUO, Wei ,  JIN, Yu ,  LIU, Bing ,  CHE, Yong ,  HAGEDORN, Kevin, V.

Inventor： GUO, Wei ,  JIN, Yu ,  LIU, Bing ,  CHE, Yong ,  HAGEDORN, Kevin, V.

IPC: H01L21/02 ,  H01L21/368 ,  H01L31/18

CPC classification number: H01L21/02628 ,  H01L21/02568 ,  H01L21/02601 ,  H01L21/02614 ,  H01L31/0322 ,  H01L31/0749 ,  Y02E10/541

Abstract: The present invention provides a non-vacuum method of depositing a photovoltaic absorber layer based on electrophoretic deposition of a mixture of nanoparticles with a controlled atomic ratio between the elements. The nanoparticles are first dispersed in a liquid medium to form a colloidal suspension and then electrophoretically deposited onto a substrate to form a thin film photovoltaic absorber layer. The absorber layer may be subjected to optional post-deposition treatments for photovoltaic absorption.

Abstract translation: 本发明提供了一种非真空方法，其基于在元件之间具有受控原子比的纳米颗粒的混合物的电泳沉积来沉积光伏吸收层。 首先将纳米颗粒分散在液体介质中以形成胶体悬浮液，然后电泳沉积到基底上以形成薄膜光伏吸收层。 可以对吸收层进行用于光伏吸收的任选的后沉积处理。

公开(公告)号：WO2013085825A1

公开(公告)日：2013-06-13

申请号：PCT/US2012/067512

申请日：2012-12-03

Applicant: IMRA AMERICA INC.

Inventor： HAGEDORN, Kevin, V. ,  LIU, Bing ,  CHE, Yong

IPC: G06F19/00

CPC classification number: B01J37/349 ,  B01J21/185 ,  B01J23/62 ,  B01J23/626 ,  B01J23/628 ,  B01J23/6447 ,  B01J23/6525 ,  B01J23/892 ,  B01J35/0013 ,  B01J35/002 ,  B01J35/1014 ,  B01J37/344 ,  B82Y30/00 ,  B82Y40/00 ,  H01M4/921 ,  Y10S977/773 ,  Y10S977/81 ,  Y10S977/889

Abstract: At least one embodiment includes a method for fabricating a catalyst comprising a colloidal suspension of nanoparticles, the nanoparticles comprising intermetallics of two or more metals exhibiting long range superlattice crystal ordering. The method comprising the steps of: producing a bulk target of the intermetallics of two or more metals exhibiting long range crystal ordering and submerging the target in a solvent. A pulsed laser is used to ablate bulk target material and to produce nanoparticle of the intermetallics of two or more metals exhibiting long range crystal ordering. At least one embodiment includes a catalyst made with the method. The catalyst can exhibit some desirable properties. For example, the catalyst may remain suspended in solution, essentially without surface modification by ionic compounds. Furthermore, the concentration of elements other than those which comprise the solvent or the intermetallic compound may be less than about 1 ppm.

Abstract translation: 至少一个实施方案包括用于制造包含纳米颗粒的胶态悬浮液的催化剂的方法，所述纳米颗粒包含两种或更多种呈现长范围超晶格晶体排列的金属的金属间化合物。 该方法包括以下步骤：制备两种或多种金属间化合物的体积目标物，其显示长程晶体排序并将靶浸入溶剂中。 使用脉冲激光来消融体目标材料并产生呈现长程晶体排列的两种或多种金属的金属间化合物的纳米颗粒。 至少一个实施方案包括用该方法制备的催化剂。 催化剂可以表现出一些期望的性质。 例如，催化剂可以保持悬浮在溶液中，基本上没有通过离子化合物的表面改性。 此外，除了包含溶剂或金属间化合物的元素之外的元素的浓度可以小于约1ppm。

公开(公告)号：WO2013063090A2

公开(公告)日：2013-05-02

申请号：PCT/US2012/061656

申请日：2012-10-24

Applicant: IMRA AMERICA, INC.

Inventor： HAGEDORN, Kevin, V. ,  LIU, Bing

IPC: C25D13/02

CPC classification number: C25D13/02 ,  B82Y30/00 ,  C25D13/10 ,  Y10T428/25 ,  Y10T428/31678

Abstract: Disclosed is a process for electrophoretic deposition of colloidal suspensions of nanoparticles, especially from aprotic solvents, onto a variety of substrates. The process provides chemical additives that can be used to improve thin films deposited from colloidal suspensions by increasing the rate of deposition and the smoothness of the deposited film. In this process, a chemical additive is used to improve the properties of the deposited thin films. The chemical additive comprises a redox couple, an organometallic complex, a metallocene, a ferrocene, or a nickelocene. The colloidal suspension can be composed of semiconductor, metal or ceramic nanoparticles suspended in an aprotic polar solvent such as acetone, acetonitrile, or pyridine. The process also improves the properties of thin films deposited from protic solvents. The particles have at least one dimension ranging from 0.1 nanometers (nm) to 500 nm.

Abstract translation: 公开了一种将纳米粒子，特别是非质子溶剂的胶体悬浮液电泳沉积到各种基底上的方法。 该方法提供化学添加剂，其可用于通过增加沉积速率和沉积膜的平滑度来改善由胶体悬浮液沉积的薄膜。 在该方法中，使用化学添加剂来改善沉积的薄膜的性质。 化学添加剂包括氧化还原对，有机金属络合物，茂金属，二茂铁或二茂镍。 胶态悬浮液可以由悬浮在非质子极性溶剂如丙酮，乙腈或吡啶中的半导体，金属或陶瓷纳米颗粒组成。 该方法还改善了由质子溶剂沉积的薄膜的性质。 颗粒具有0.1纳米（nm）至500nm的至少一个维度。