Solaero Technologies Corp.

Samantha Whipple

Daniel Derkacs

Nathaniel Miller

Daniel James Aiken

Mark A Stan

Paul R Sharps

Pravin Patel

John Hart

Zachary Bittner

Alexander Haas

Bed Pantha

A multijunction solar cell including a metamorphic layer, and particularly the design and specification of the composition, lattice constant, and band gaps of various layers above the metamorphic layer in order to achieve reduction in 'bowing' of the semiconductor wafer caused by the lattice mismatch of layers associated with the metamorphic layer.

Metamorphic solar cells

The present disclosure provides a multijunction solar cell comprising: an upper solar subcell having an indirect band gap semiconductor emitter layer composed of greater than 0.7 but less than 1.0 mole fraction aluminum and a base layer, the emitter layer and the base layer forming a heterojunction solar subcell; and a lower solar subcell disposed beneath the upper solar subcell, wherein the lower solar subcell has an emitter layer and a base layer forming a photoelectric junction. In some embodiments, the emitter layer of the upper solar subcell is an n-type AlGaAs layer with 0.7&#x3c;x&#x3c;1.0 and having a band gap of greater than 1.85 eV.

Multijunction solar cells having an indirect high band gap semiconductor emitter layer in the upper solar subcell

A solar cell comprising a bulk germanium silicon growth substrate; a diffused photoactive junction in the germanium silicon substrate; and a sequence of subcells grown over the substrate, with the first grown subcell either being lattice matched or lattice mis-matched to the growth substrate.

Multijunction solar cells on bulk GeSi substrate

Growing community of inventors

Albuquerque, NM, United States of America

Samantha Whipple