E.i. Dupont De Nemours and Company

Barry Edward Taylor

Alan Frederick Carroll

William J Borland

Kenneth Warren Hang

Paul Douglas Vernooy

Howard David Glicksman

Seiichi Nakagawa

John James Barnes

Michael F Barker

Robert D Shannon

Marc Henry Labranche

James J Krajewski

Kuninori Okamoto

Motohiko Tsuchiya

Marc H LaBranche

Jay Scott Schickling

William A Craig

Rob Cockerill

Warren Harrell

Bradley J Schickling

Michele L Ostraat

A photovoltaic cell such as a solar cell is disclosed. The cell comprises (a) a semiconductor substrate having a front surface, (b) one or more anti-reflection coating layers on the front surface of the semiconductor substrate, (c) a plurality of silver-containing fingers in contact with the one or more anti-reflection coating layers and in electrical contact with the semiconductor substrate; and (d) one or more base metal containing buss bars each in contact with the one or more anti-reflection coating layers and the silver-containing fingers. The base metal may be selected from one or more of copper, nickel, lead, tin, iron, indium, zinc, bismuth and cobalt. Methods for making photovoltaic cells with base metal containing buss bars are also disclosed.

Photovoltaic devices with base metal buss bars

The invention relates to a corrosion resistant reactor tube, method for providing a passivating or corrosion resistant coating to the inside of the reactor tube, and a method of making high bismuth glass powders using the corrosion resistant reactor tube.

Method for making glass frit powders using aerosol decomposition

A photovoltaic cell such as a solar cell is disclosed. The cell comprises (a) a semiconductor substrate having a front surface, (b) one or more anti-reflection coating layers on the front surface of the semiconductor substrate, (c) a plurality of silver-containing fingers in contact with the one or more anti-reflection coating layers and in electrical contact with the semiconductor substrate; and (d) one or more base metal containing buss bars each in contact with the one or more anti-reflection coating layers and the silver-containing fingers. The base metal may be selected from one or more of copper, nickel, lead, tin, iron, indium, zinc, bismuth and cobalt. Methods for making protovoltaic cells with base metal containing buss bars are also disclosed.

Processes and compositions for forming photovoltaic devices with base metal buss bars

The invention relates to a surface-modified RuOconductive and a lead-free powdered glass material formulated to make a paste suitable for application to the manufacture of a thick film resistor material. The resistance range that is most suitable to this invention is a resistor having 10 kilo-ohms to 10 mega-ohms per square of sheet resistance. The resulting resistors have &#xb1;100 ppm/&#xb0; C. TCRs.

Surface-modified ruthenium oxide conductive material, lead-free glass(es), thick film resistor paste(s), and devices made therefrom

The invention is directed to a thick film conductor composition wherein such compositions have improved solderability and adhesion to substrates due to the addition of a crystalline material from the feldspar family.

Thick film conductor compositions with improved adhesion

A crystallizable low melting glass consisting essentially of PbO, ZnO, B.sub.2 O.sub.3, GeO.sub.2 and optionally SiO.sub.2, SnO.sub.2 and a metal oxide colorant.

Partially crystallizable low melting glass

Thick film conductor compositions comprising an admixture of finely divided particles of

Thick film conductor composition

A thick film conductor composition comprising an admixture of finely divided particles of noble metal and inorganic binder dispersed in organic medium in which the inorganic binder consists essentially of a bismuth silicate glass and/or bismuth germanate glass, ZnO and optionally Bi.sub.2 O.sub.3.

Binder glass of Bi.sub.2 O.sub.3 -SiO.sub.2 -GeO.sub.2 (-PbO optional)

Tin alloy solder powder compositions comprising finely divided particles of the alloy coated with a thin continuous layer of organic flux sufficient to lower the electrical conductivity and to obscure the eutectic domains on the surface of the alloy particles.

Flux treated solder powder composition

Na.sup.+ -conducting glass and glass-ceramic of the composition comprising aNa.sub.2 O, bSiO.sub.2, cM.sub.2 O.sub.3, dM'O.sub.2 and eM'O wherein, based on the combined molar amounts totaling 100%, a is 32-41 mole %, b is 50-58 mole %, the ratio a/b is 0.575/1 to 0.760/1, c is 0-8 mole %, d is 0-7 mole %, e is 0-17 mole %, 2c+d+e is at least 8.7 mole %, M is one or more elements selected from the group consisting of the rare earth elements, yttrium and iron, M' is Zr or Hf and M' is Mg, Ca, Sr or Ba, Na.sup.+ -conducting composition having the substantially cubic crystalline structure of the formula Na.sub.9-x-n-z/2 M.sub.1+x/3-2y-n-z/2 M'.sub.y+n M'.sub.y+z Si.sub.6 O.sub.18 wherein M, M' and M' are as defined above, x is 0 to 1.5, y is 0 to 0.5, z is 0 to 2.0, n is 0 to 0.5, y+n.ltoreq.0.5 and y+z.ltoreq.2.0 and the use of said glass, glass-ceramic and crystalline cubic material as a solid electrolyte.

Growing community of inventors

Wake Forest, NC, United States of America

Barry Edward Taylor