PHOTOVOLTAIC CELL INTERCONNECT

摘要

The invention is a photovoltaic article comprising a first photovoltaic cell having a photoelectrically active region which is located between a topside electrode and a backside electrode, at least one first interconnect element in contact with the frontside electrode at a front surface of the cell and the interconnect element is adhered to the topside electrode of the cell, and at least one second interconnect element adhered to the backside electrode. An electronically conductive adhesive having a low Tg is used to adhere the interconnect element to the frontside electrode. The ECA used to adhere the second interconnect element to the backside electrode is characterized by at least one of the following features: a glass transition temperature of at least 85 C and the backside electrically conductive adhesive comprises a metal chelation compound characterized by the presence of a heterocyclic component comprising one of O, N, or S in a ring configuration and at least one additional heteroatom selected from O, N, or S.