Heraeus Precious Metals North America Conshohocken LLC

Other

Ferro Corporation

Tung Thanh Pham

Srinivasan Sridharan

Aziz S Shaikh

Chandrashekhar Sadanand Khadilkar

Weiming Zhang

Steve S Kim

An alert system detects the presence of occupants in a vehicle using optical sensors comprised of (infrared) emitters and photodetectors. Each sensor emits a beam across a path in proximity to a seat. Retroreflectors are positioned in the path. A seated occupant blocks the path and prevents reflection. If the path adjacent to a baby's seat is blocked and the path adjacent to the driver's seat is not blocked, an alarm event is triggered. After a delay, voice and text messages and audible and visible output are generated.

Multi-function retroreflective on-board alert system

An electroconductive paste composition, particularly for solar cells, contains silver particles, glass particles, an organic vehicle, and at least one additive. The additive may be tantalum pentoxide or fine, electrically conductive, metal particles, such as gold and/or platinum group metals. When used to form an electrical contact on a solar cell, such a paste provides for enhanced adhesion of the contact to the cell and improved electron transmission.

Electroconductive paste composition

Formulations and methods of making solar cells are disclosed. In general, the invention presents a solar cell contact made from a mixture wherein the mixture comprises a solids portion and an organics portion, wherein the solids portion comprises from about 85 to about 99 wt % of a metal component, and from about 1 to about 15 wt % of a lead-free glass component. Both front contacts and back contacts arc disclosed.

Lead free solar cell contacts

Formulations and methods of making solar cells are disclosed. In general, the invention presents a solar cell contact made from a mixture wherein the mixture comprises a solids portion and an organics portion, wherein the solids portion comprises from about 85 to about 99 wt % of silver, and from about 1 to about 15 wt % of a glass component wherein the glass component comprises from about 15 to about 75 mol % PbO, and from about 5 to about 50 mol % SiO, and preferably with no BO.

Method of making solar cell contacts

A method is provided for applying back contact silver busbars to an aluminum back surface field (BSF) of a solar cell. The method involves providing a solar cell substrate having a front side and a back side; printing a full aluminum backing layer on the back side of the solar cell substrate; drying the printed aluminum backing layer to yield a full aluminum layer; printing and drying a peeling paste on the full aluminum layer in areas where the silver busbars are desired; printing and drying a front contact silver paste on the front side of the solar cell substrate to produce a front grid electrode; co-firing and cooling the front and back sides of the solar cell, wherein during firing the peeling paste wets excess aluminum powder in the aluminum layer, such that during cooling of the solar cell the peeling paste contracts, solidifies, and peels off with the excess aluminum powder to leave a full aluminum BSF having open areas; and printing, drying, and firing a back contact silver paste on the open areas of the BSF to yield silver busbars.

Method for applying full back surface field and silver busbar to solar cell

Formulations and methods of making solar cells are disclosed. In general, the invention presents a solar cell contact made from a mixture wherein the mixture comprises a solids portion and an organics portion, wherein the solids portion comprises from about 85 to about 99 wt % of a metal component, and from about 1 to about 15 wt % of a lead-free glass component. Both front contacts and back contacts are disclosed.

Growing community of inventors

West Conshohocken, PA, United States of America

Tung Thanh Pham