PATENT CLAIM ANALYSIS

Application Number: 15873135
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["136", "255000"]

Abstract:
A four junction solar cell having an upper first solar subcell composed of a semiconductor material having a first band gap; a second solar subcell adjacent to said first solar subcell and composed of a semiconductor material having a second band gap smaller than the first band gap and being lattice matched with the upper first solar subcell; a third solar subcell adjacent to said second solar subcell and composed of a semiconductor material having a third band gap smaller than the second band gap and being lattice matched with the second solar subcell; and a fourth solar subcell adjacent to and lattice mismatched from said third solar subcell and composed of a semiconductor material having a fourth band gap smaller than the third band gap; wherein the fourth subcell has a direct bandgap of greater than 0.75 eV, and the average band gap of the solar cell is equal to or greater than 1.35 eV.

Claim (Index 1):
A four-junction space-qualified solar cell assembly designed for operation at AM0 and at a 1 MeV electron equivalent fluence of at least 1\u00d710 14  e/cm 2 , the solar cell comprising subcells, wherein a combination of compositions and band gaps of the subcells is designed to maximize efficiency of the solar cell at a predetermined time, after initial deployment, when the solar cell is deployed in space at AM0 and at an operational temperature in the range of 40 to 70 degrees Centigrade, the predetermined time being at least five years and referred to as the end-of-life (EOL), the solar cell comprising:\n an upper first solar subcell composed of indium gallium aluminum phosphide and having a first band gap in the range of 2.0 to 2.2 eV;\n a second solar subcell adjacent to said first solar subcell and including an emitter layer composed of indium gallium phosphide or aluminum indium gallium arsenide, and a base layer composed of aluminum indium gallium arsenide and having a second band gap in the range of approximately 1.55 to 1.8 eV and being lattice matched with the upper first solar subcell, wherein the emitter and base layers of the second solar subcell form a photoelectric junction; \n a third solar subcell adjacent to said second solar subcell and composed of indium gallium arsenide and having a third band gap less than that of the second solar subcell and being lattice matched with the second solar subcell; and \n a fourth solar subcell adjacent to said third solar subcell and composed of germanium and having a fourth band gap of approximately 0.67 eV; \n wherein the average band gap of the solar cell (i.e., the average, or numerical sum of the band gaps of each of the four subcells, divided by four) is equal to or greater than 1.35 eV.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 86.0
- Lexical Diversity: 3.375
- Patent Class: 136.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15681144', '15249185', '15376195', '15250643', '15249204']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8524929296687929
- 35 USC 102 Novelty (BERT): 0.613027440153224
- Combined Prediction Score: 0.8285463807172361
- Mean Citation Score: 577.12852
- Max Citation Score: 599.2646
- Similarity Product: 480.6821746047257

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test