Manufacture of high efficiency solar cells

Details Manufacture of high efficiency solar cells Manufacture of high efficiency solar cells

1984-10-16

1986-05-20

Weisstuch, Aaron

Metal working

Method of mechanical manufacture

Assembling or joining

29591, 427 74, 427 88, 136255, 136256, 357 30, 357 65, H01L 3118

Patent

active

045891915

ABSTRACT:
A Passivated Emitter Solar Cell (PESC) with reduced surface recombination due to reduced contact area between the top metal contact and the top surface of the cell, and having an open circuit voltage approaching 700 mV and an energy conversion efficiency in excess of 19% is disclosed. The reduced contact area is obtained by a technique which simultaneously defines the lateral geometry of the top metal contact while allowing the top metal contact to be of much larger area than the area of contact to the top surface of the cell. Also disclosed are methods of manufacture of solar cells having an increased open cell voltage obtained by improved passivation of the cell surface obtained by this technique.

REFERENCES:
patent: 3982964 (1976-09-01), Lindmayer et al.
patent: 4248675 (1981-02-01), Bozler et al.
patent: 4253881 (1981-03-01), Hezel
patent: 4395583 (1983-07-01), Meulenberg, Jr.

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