Invention Grant
- Patent Title: Inverted metamorphic multijunction solar cell with metamorphic layers
- Patent Title (中): 变质层变质多相太阳能电池
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Application No.: US14813745Application Date: 2015-07-30
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Publication No.: US09356176B2Publication Date: 2016-05-31
- Inventor: Arthur Cornfeld , Pravin Patel , Mark A. Stan , Benjamin Cho , Paul R. Sharps , Daniel J. Aiken , John Spann
- Applicant: SolAero Technologies Corp.
- Applicant Address: US NM Albuquerque
- Assignee: SolAero Technologies Corp.
- Current Assignee: SolAero Technologies Corp.
- Current Assignee Address: US NM Albuquerque
- Priority: EP110102241 20111227
- Main IPC: H01L31/0687
- IPC: H01L31/0687 ; H01L31/078 ; H01L31/18

Abstract:
A multijunction solar cell having at least four solar subcells includes a first solar subcell having a first band gap. A first graded interlayer adjacent to the first solar subcell and has a second band gap greater than the first band gap and that is constant at 1.5 eV throughout the thickness of the first graded interlayer. A second solar subcell is adjacent to the first graded interlayer and has a third band gap smaller than the first band gap of the first solar subcell. The second solar subcell is lattice mismatched with respect to the first solar subcell. A second graded interlayer is adjacent to the second solar subcell and has a fourth band gap greater than the third band gap of the second solar subcell and that is constant at 1.1 eV throughout the thickness of the second graded interlayer. A third solar subcell is adjacent to the second graded interlayer and has a fifth band gap smaller than the third band gap of the second solar subcell. The third solar subcell is lattice mismatched with respect to the second solar subcell. Each of the first and second graded interlayers is composed, respectively, of a compositionally step-graded series of (InxGa1-x)yAl1-yAs layers with monotonically changing lattice constant, with x and y having respective values such that the band gap of each interlayer remains constant throughout its thickness, and wherein 0
Public/Granted literature
- US20160013348A1 INVERTED METAMORPHIC MULTIJUNCTION SOLAR CELL WITH METAMORPHIC LAYERS Public/Granted day:2016-01-14
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