PATENT CLAIM ANALYSIS

Application Number: 16287830
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["257", "013000"]

Abstract:
A semiconductor nanocrystal characterized by having a solid state photoluminescence external quantum efficiency at a temperature of 90° C. or above that is at least 95% of the solid state photoluminescence external quantum efficiency of the semiconductor nanocrystal at 25° C. is disclosed. A semiconductor nanocrystal having a multiple LO phonon assisted charge thermal escape activation energy of at least 0.5 eV is also disclosed. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 590 nm to 650 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 5.5. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 545 nm to 590 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 7. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 495 nm to 545 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 10. A composition comprising a plurality of semiconductor nanocrystals wherein the solid state photoluminescence efficiency of the composition at a temperature of 90° C. or above is at least 95% of the solid state photoluminescence efficiency of the composition 25° C. is further disclosed. A method for preparing semiconductor nanocrystals comprises introducing one or more first shell chalcogenide precursors and one or more first shell metal precursors to a reaction mixture including semiconductor nanocrystal cores, wherein the first shell chalcogenide precursors are added in an amount greater than the first shell metal precursors by a factor of at least about 2 molar equivalents and reacting the first shell precursors at a first reaction temperature of at least 300° C. to form a first shell on the semiconductor nanocrystal cores. Populations, compositions, components and other products including semiconductor nanocrystals of the invention are disclosed. Populations, compositions, components and other products including semiconductor nanocrystals made in accordance with any method of the invention is also disclosed.

Claim (Index 14):
A light-emitting device comprising a light-emitting element and an optical material arranged to receive and convert at least a portion of light emitted by at least a portion of the light-emitting element from a first emission wavelength to one or more predetermined wavelengths, wherein the material comprises a semiconductor nanocrystal in accordance with  claim 1 .

Metadata:
- Claim Count in Document: 32.0
- Percentile: 99.0
- Lexical Diversity: 3.37391
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14451125', '14521225', '12454703', '12454701', '15482411']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.931692810115274
- 35 USC 102 Novelty (BERT): 0.5784867262023681
- Combined Prediction Score: 0.8963722017239835
- Mean Citation Score: 321.977796
- Max Citation Score: 430.63
- Similarity Product: 398.4453073322773

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

Dataset: test