Solaero Technologies Corp.

Steven Whipple

Daniel Derkacs

Christopher Kerestes

A metamorphic multijunction solar cell having a growth semiconductor substrate with a top surface having a doping in the range of 1x10to 1x10charge carriers/cm; a window layer for a top (light facing) subcell formed directly on the top surface of the growth substrate; a sequence of layers of semiconductor material forming a solar cell directly on the window layer; a surrogate substrate on the top surface of the sequence of layers of semiconductor material, wherein a portion of the semiconductor substrate is removed so that only the high doped surface portion of the substrate, having a thickness in the range of 0.5 &#x3bc;m to 10 &#x3bc;m, remains.

Inverted metamorphic multijunction solar cell

A method of manufacturing an inverted metamorphic multijunction solar cell by providing a growth semiconductor substrate with a top surface having a doping in the range of 1&#xd7;10to 1&#xd7;10charge carriers/cm; depositing a window layer for a top (light facing) subcell subsequently to be formed directly on the top surface of the growth substrate; depositing a sequence of layers of semiconductor material forming a solar cell directly on the window layer; providing a surrogate substrate on the top surface of the sequence of layers of semiconductor material, and removing a portion of the semiconductor substrate so that only the high doped surface portion of the substrate, having a thickness in the range of 0.5 &#x3bc;m to 10 &#x3bc;m, remains.

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Albuquerque, NM, United States of America

Steven Whipple