Batteries: thermoelectric and photoelectric – Thermoelectric – Radiation pyrometer
Patent
1976-12-08
1978-01-24
Mack, John H.
Batteries: thermoelectric and photoelectric
Thermoelectric
Radiation pyrometer
29572, 357 30, 357 91, 357 90, 148 15, H01L 3106
Patent
active
040702057
ABSTRACT:
An improved gallium arsenide solar cell is provided by forming a P+ layer on top of a wafer of plural vertical PN junction eutectic gallium arsenide crystal by liquid phase epitaxial growth of P doped GaAs followed by liquid phase epitaxial growth at Al.sub.x AsGa.sub.l-x on the surface of the vertical PN junction substrate. The deposited GaAs layer with P dopant and the Al.sub.x AsGa.sub.l-x layer forms horizontal P-N junctions with the N-type vertical regions. An N+ region is formed on the solar cell backside by ion implantation of an N dopant followed by a pulse electron beam current of the implanted region.
REFERENCES:
patent: 3675026 (1972-07-01), Woodall
patent: 3969746 (1976-07-01), Kendall et al.
R. K. Smeltzer et al., "Vertical Multijunction Solar Cell Fabrication," Conf. Record, 10th IEEE Photospecialists' Conf., Palo Alto, Calif., Nov. 1973, pp. 194-196.
K. V. Vaidyanathan et al., "The Effect of Be+ Ion Implantation and Uniform Impurity Profiles on the Electrical Characteristics of GaAs Solar Cells," Conf. Record, 10th IEEE Photospecialists' Conf., Palo Alto, Calif., Nov. 1973, pp. 31-33.
Duncan Robert Kern
Mack John H.
Rusz Joseph E.
The United States of America as represented by the Secretary of
Weisstuch Aaron
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