Thin film solar cell

Details Thin film solar cell Thin film solar cell

1982-03-26

1984-02-21

Weisstuch, Aaron

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

136258, 357 15, 357 30, 357 59, 357 2, H01L 3106

Patent

active

044332025

ABSTRACT:
A thin film solar cell formed on a substrate, comprising at least first and second electrodes, at least one of which is capable of passing light, a silicon film interposed between said first and second electrodes, and at least one junction formed in the silicon film for separating electrons and positive holes when the cell is exposed to light, wherein said silicon film comprises a mixed phase consisting of a polycrystalline phase and an amorphous phase, and includes at least about 50% by volume of fibrous crystalline grains, each of said grains having a maximum bottom diameter of about 1 .mu.m and a minimum height of about 50 nm and having its grain boundaries terminated with a monovalent element.
The solar cell has a high photoelectric conversion efficiency comparable to that of a single-crystal solar cell, and can be produced at a low cost.

REFERENCES:
patent: 4321420 (1982-03-01), Kaplan et al.
patent: 4343830 (1982-08-01), Sarma et al.
A. Matsuda et al., "Electrical & Structural Properties of Phosphorus-Doped Glow Discharge Si:F:H and Si:H Films," Jap. J. Appl. Phys., vol. 19, pp. L305-L308, (1980).
M. Hirose, "Some New Fabrication Technologies of Amorphous Silicon", pp. 39-44, 50 in Amorphous Semiconductor Technologies & Devices, (1982).

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