摘要:
The paste composition of the instant invention consists of silver powder, glass frit, Bi 2 O 3 , metal additives and an organic medium. The present invention is further directed to an electrode formed from the paste composition and a semiconductor device and, in particular, a solar cell comprising such an electrode. The paste compositions provide a solderable electrode, particularly useful for forming solar cell back side buss bars on an aluminum layer that covers the entire back side surface of the solar cell.
摘要翻译:本发明的糊剂组合物由银粉,玻璃料,Bi 2 O 3,金属添加剂和有机介质组成。 本发明还涉及由糊料组合物和半导体器件形成的电极,特别是包括这种电极的太阳能电池。 糊料组合物提供可焊接电极,特别适用于在覆盖太阳能电池的整个背侧表面的铝层上形成太阳能电池背面母线。
摘要:
A silver paste having no or only poor fire-through capability comprises silver particles, at least one lead-free glass frit containing 0.5 to 15 wt.% SiO 2 , 0.3 to 10 wt.% Al 2 0 3 and 67 to 75 wt.% Bi 2 O 3 (the weight percentages being based on the total weight of the glass frit) and an organic vehicle, wherein the content of the silver particles in the paste is 60 to 92 wt.% based on total paste composition and wherein the paste is free from zinc oxide and compounds capable of generating zinc oxide on firing. The silver paste is used in the manufacture of metallisations (electrodes, parts of electrodes or other metal contacts) of solar cells.
摘要翻译:没有或只有不良的穿透能力的银膏包括银颗粒,至少一种含0.5至15重量%SiO 2,0.3至10重量%Al 2 O 3和67至75重量%Bi 2 O 3的无铅玻璃料 重量百分数是基于玻璃料的总重量)和有机载体,其中糊料中银粒子的含量基于总糊剂组合物为60至92重量%,并且其中糊料不含氧化锌和 能够在烧制时产生氧化锌的化合物。 银膏用于太阳能电池的金属化(电极,电极部分或其他金属接触)的制造。
摘要:
A conductive paste composition contains a source of an electrically conductive metal, a lead-tellurium-based oxide, a discrete oxide of an adhesion promoting element, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the paste composition on a semiconductor substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and lead-tellurium-based oxide.
摘要:
The present invention is directed to an electroconductive thick film paste composition comprising electrically conductive Ag, a second electrically conductive metal selected from the group consisting of Ni, Al and mixtures thereof and a lead-tellurium-lithium-titanium-oxide all dispersed in an organic medium. The present invention is further directed to an electrode formed from the thick film paste composition and a semiconductor device and, in particular, a solar cell comprising such an electrode.
摘要:
The present invention is directed to an electroconductive thick film paste composition comprising Ag and a Pb-free bismuth-tellurium-oxide both dispersed in an organic medium. The present invention is further directed to an electrode formed from the paste composition and a semiconductor device and, in particular, a solar cell comprising such an electrode. The present invention is also directed to the bismuth-tellurium oxide that is a component of thick film pastes.
摘要:
A conductive metal via paste comprising particulate conductive metal, a reactant that reacts at temperatures of 600°C to 900°C with at least one of the group consisting of Si, SiO 2 and SiN x to form an insulating glass, and an organic vehicle is particularly useful in providing the metallization of the holes in the silicon wafers of MWT solar cells. The result is a metallic electrically conductive via between the collector lines on the front side and the emitter electrode on the back-side of the solar cell. The paste can also be used to form the collector lines on the front-side of the solar cell and the emitter electrode on the back-side of the solar cell. Also disclosed are metal-wrap-through silicon solar cells comprising the fired conductive metal paste.
摘要:
The invention relates to glass compositions useful in conductive pastes for silicon semiconductor devices and photovoltaic cells. The glass frit comprises the following components, expressed in wt%: SiO2 17-26%; B203 2-9%; F 1-17%; Bi 47-75%.
摘要翻译:本发明涉及可用于硅半导体器件和光伏电池的导电浆料中的玻璃组合物。 玻璃料包含以wt%表示的以下组分:SiO 2 17-26%; B203 2-9%; F 1-17%; Bi 47-75%。
摘要:
A lead-tellurium-lithium-titanium-oxide glass composition is useful as a component of a conductive silver paste. Especially useful are P-containing and V-containing lead-tellurium-lithium-titanium-oxide glass composition. Conductive silver via paste comprising particulate conductive silver and any of the lead-tellurium-lithium-titanium-oxide glass compositions of the invention can be used in providing the metallization of the holes in the silicon wafers of MWT solar cells. The result is a metallic electrically conductive via between the collector lines on the front side and the emitter electrode on the back-side of the solar cell. The paste can also be used to form the collector lines on the front-side of the solar cell and the emitter electrode on the back-side of the solar cell.
摘要:
An aluminium paste having no or only poor fire-through capability comprises aluminium particles, at least one glass frit containing 0.5 to 15 wt.% SiO 2 , 0.3 to 10 wt.% Al203 and 67 to 75 wt.% Bi 2 O 3 (the weight percentages being based on the total weight of the glass frit) and an organic vehicle. The aluminium paste is used in the manufacture of aluminium back electrodes of PERC (passivated emitter and rear contact) silicon solar cells, wherein the paste is applied on a perforated dielectric passivation layer on the back-side of a silicon wafer and subsequently dried and fired or, alternatively, wherein the paste is applied on a non-perforated passivation layer on the back-side of a silicon wafer, dried and fired and the aluminium layer and the passivation layer are subsequently laser fired to produce perforations in the passivation layer and to form local BSF (back surface field) contacts.
摘要翻译:没有或仅仅具有差的穿透能力的铝浆包括铝颗粒,至少一种含有0.5至15重量%SiO 2,0.3至10重量%Al 2 O 3和67至75重量%Bi 2 O 3的玻璃料(重量百分数为 基于玻璃料的总重量)和有机载体。 铝浆用于制造PERC(钝化发射器和后接触)硅太阳能电池的铝背电极,其中将糊剂施加在硅晶片背面上的穿孔电介质钝化层上,随后干燥和烧制 或者替代地,其中将糊剂施加在硅晶片的背侧上的非穿孔钝化层上,干燥和烧制,随后激光烧制铝层和钝化层以在钝化层中产生穿孔,并且 形成本地BSF(背面场)接触。