Inverted metamorphic multijunction solar cell with two metamorphic layers and homojunction top cell

Inverted metamorphic multijunction solar cell with two metamorphic layers and homojunction top cell

A multijunction solar cell including an upper first solar subcell having a first band gap, and the base-emitter junction of the upper first solar subcell being a homojunction; a second solar subcell adjacent to said first solar subcell and having a second band gap smaller than said first band gap; a...

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Hauptverfasser: Aiken, Daniel J, Sharps, Paul R, Cho, Benjamin, Spann, John, Stan, Mark A, Cornfeld, Arthur, Patel, Pravin
Format: Patent
Sprache:eng ; fre ; ger
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BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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creator Aiken, Daniel J
Sharps, Paul R
Cho, Benjamin
Spann, John
Stan, Mark A
Cornfeld, Arthur
Patel, Pravin
description A multijunction solar cell including an upper first solar subcell having a first band gap, and the base-emitter junction of the upper first solar subcell being a homojunction; a second solar subcell adjacent to said first solar subcell and having a second band gap smaller than said first band gap; a third solar subcell adjacent to said second solar subcell and having a third band gap smaller than said second band gap. A first graded interlayer is provided adjacent to said third solar subcell; said first graded interlayer having a fourth band gap greater than said third band gap. A fourth solar subcell is provided adjacent to said first graded interlayer, said fourth subcell having a fifth band gap smaller than said third band gap such that said fourth subcell is lattice mismatched with respect to said third subcell. A second graded interlayer is provided adjacent to said fourth solar subcell; said second graded interlayer having a sixth band gap greater than said fifth band gap; and a lower fifth solar subcell is provided adjacent to said second graded interlayer, said lower fifth subcell having a seventh band gap smaller than said fifth band gap such that said fifth subcell is lattice mismatched with respect to said fourth subcell.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
title Inverted metamorphic multijunction solar cell with two metamorphic layers and homojunction top cell
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