会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Nanoparticle-based etching of silicon surfaces
    • 硅表面的纳米粒子蚀刻
    • US08075792B1
    • 2011-12-13
    • US12053372
    • 2008-03-21
    • Howard BranzAnna DudaDavid S. GinleyVernon YostDaniel MeierJames S. Ward
    • Howard BranzAnna DudaDavid S. GinleyVernon YostDaniel MeierJames S. Ward
    • C03C15/00
    • H01L31/02363Y02E10/50Y10T428/24917
    • A method (300) of texturing silicon surfaces (116) such to reduce reflectivity of a silicon wafer (110) for use in solar cells. The method (300) includes filling (330, 340) a vessel (122) with a volume of an etching solution (124) so as to cover the silicon surface 116) of a wafer or substrate (112). The etching solution (124) is made up of a catalytic nanomaterial (140) and an oxidant-etchant solution (146). The catalytic nanomaterial (140) may include gold or silver nanoparticles or noble metal nanoparticles, each of which may be a colloidal solution. The oxidant-etchant solution (146) includes an etching agent (142), such as hydrofluoric acid, and an oxidizing agent (144), such as hydrogen peroxide. Etching (350) is performed for a period of time including agitating or stirring the etching solution (124). The etch time may be selected such that the etched silicon surface (116) has a reflectivity of less than about 15 percent such as 1 to 10 percent in a 350 to 1000 nanometer wavelength range.
    • 一种使硅表面(116)纹理化以减少用于太阳能电池的硅晶片(110)的反射率的方法(300)。 方法(300)包括用一定体积的蚀刻溶液(124)填充(330,340)容器(122)以覆盖晶片或衬底(112)的硅表面116)。 蚀刻溶液(124)由催化纳米材料(140)和氧化剂 - 蚀刻剂溶液(146)组成。 催化纳米材料(140)可以包括金或银纳米颗粒或贵金属纳米颗粒,其各自可以是胶体溶液。 氧化剂 - 蚀刻剂溶液(146)包括诸如氢氟酸的蚀刻剂(142)和氧化剂(144),例如过氧化氢。 进行蚀刻(350)一段时间,包括搅拌或搅拌蚀刻液(124)。 可以选择蚀刻时间,使得蚀刻的硅表面(116)具有小于约15%的反射率,例如在350至1000纳米波长范围内的1至10%。