Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Patent
1986-03-11
1987-05-12
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
136249, 357 30, 357 35, H01L 3106
Patent
active
046652779
ABSTRACT:
Front surface contact floating emitter solar cell "transistors" having a semiconductor body (n-type) and floating emitter sections (p-type) diffused or implanted in the front surface are provided with sections diffused or implanted in the front surface between the floating emitter sections, but isolated from the floating emitter sections, for use either as a base contact to the n-type semiconductor body, in which case the section is doped n.sup.+, or as a collector for the adjacent emitter sections, in which case the section is doped p.sup.+. In the first case, the structure is provided with p.sup.+ semiconductor material on the back to serve as a collector, and in the second case with n.sup.+ semiconductor material on the back to serve as a base contact. In either case, the semiconductor material on the back may be a starting substrate of suitably doped semiconductor material. In the case of the substrate being the collector, a groove is etched to isolate the collector junctions from saw damage on the edge. Using ion implantation techniques, floating emitter solar cell "transistor" structures may be fabricated in an implanted well (n-type for p-n-p transistors) to obviate the need for a groove.
REFERENCES:
patent: 4090213 (1978-05-01), Maserjian et al.
patent: 4131486 (1978-12-01), Brandhorst, Jr.
patent: 4133698 (1979-01-01), Chiang et al.
patent: 4232245 (1980-11-01), Savoye et al.
patent: 4255211 (1981-03-01), Fraas
patent: 4315097 (1982-02-01), Solomon
patent: 4316049 (1982-02-01), Hanak
patent: 4341918 (1982-07-01), Evans, Jr. et al.
patent: 4365262 (1982-12-01), Nishizawa
patent: 4367368 (1983-01-01), Wolf
patent: 4385198 (1983-05-01), Rahilly
patent: 4427839 (1984-01-01), Hall
G. A. Landis, Solar Cells, vol. 3, pp. 91-94 (1981).
M. I. Yernaux et al, Solar Cells, vol. 13, pp. 83-97 (1984).
W. T. Matzen, S. Y. Chiang, and B. G. Carbajal, "A Device Model for the Tandem Junction Solar Cell," IEEE Transactions on Electron Devices, vol. ED-26, No. 9, pp. 1365-1368, (Sep., 1979).
Shang-Yi Chang, B. G. Carbajal and G. F. Wakefield, "Improved Performance Thin Solar Cells," IEEE Transactions on Electron Devices, vol. ED-25, No. 12, pp. 1405-1408, (Dec. 1978).
Cheng Li-Jen
Sah Chih
Jones Thomas H.
Manning John R.
McCaul Paul F.
The United States of America as represented by the Administrator
Weisstuch Aaron
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