PATENT CLAIM ANALYSIS

Application Number: 15776630
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["136", "255000"]

Abstract:
A tandem solar cell structure is described with the following features: (a) Monolithic configuration with at least two different absorbers ( 104, 108 ) of different materials for photovoltaic energy conversion (b) an absorber ( 108 ) consisting of crystalline silicon (c) a charge carrier selective contact arranged on the side of the silicon absorber ( 108 ) directed to the adjacent absorber ( 104 ) (d) configuration of the charge carrier selective contact from a thin interface oxide  107  and an amorphous, partially crystalline or polycrystalline layer applied thereto, mainly consisting of silicon, either p ( 106 ) or n doped ( 201 )   The charge carrier selective contact made up of layers  107  and  106  or  201 , respectively, ensures excellent surface passivation of the crystalline silicon absorber  108 , as well as selective extraction of a charge carrier type from the latter over the entire surface. Thus, a vertical current flow is achieved, so that lateral transverse conductivity is not required in every sub-cell. The formation of a tunnel contact to the adjacent layer may be achieved by high doping of the layers  106  and  201 . The thickness and/or the doping of the layers  106  and  201  may be used to match the generation currents in the individual sub-cells. The temperature stability of layers  107, 106  or  201 , respectively, allows the application of subsequent manufacturing steps with temperatures >400° C.

Claim (Index 12):
A solar cell comprising at least two different absorbers of different materials for converting radiant energy into electrical energy with absorption in different spectral ranges, respectively, wherein:\n (a) the solar cell is configured monolithic, (b) a first absorber is made of crystalline silicon, (c) on one side of the first absorber directed to an adjacent second absorber, there is a charge carrier selective contact which is more permeable to one type of charge carrier selected from a group comprising holes and electrons than to the respective other type of charge carrier and which well passivates the corresponding surface of the first absorber, and (d) the charge carrier selective contact is formed from a layer of a thin interfacial dielectric and an amorphous, partially crystalline or polycrystalline layer applied thereto, mainly comprising silicon, the layer being either p-doped or the layer being n-doped.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 93.0
- Lexical Diversity: 2.0315
- Patent Class: 136.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13055969', '12304219', '13375557', '14243320', '14051336']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7958639293282929
- 35 USC 102 Novelty (BERT): 0.4596326678107824
- Combined Prediction Score: 0.7622408031765417
- Mean Citation Score: 177.664692
- Max Citation Score: 186.18716
- Similarity Product: 160.1020943102217

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

Dataset: test