PATENT CLAIM ANALYSIS

Application Number: 15761524
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-02
Patent Classification: ["423", "509000"]

Abstract:
A nanocrystal preparation method comprises the following steps: dissolving, in a first selected solvent, a first precursor which is in a gaseous state under normal temperature and normal pressure, to form a first precursor solution; dissolving a second precursor in a second selected solvent to form a second precursor solution, wherein the second precursor is a precursor of a metal element of Group I, Group II, Group III or Group IV; and in an inert gas atmosphere, adding the first precursor solution into a reaction vessel which contains the second precursor solution, wherein the first precursor chemically reacts with the second precursor to generate a nanocrystal. The present invention further discloses a nanocrystal prepared by the above method and an apparatus for preparing and storing a gas-dissolved solution. With the preparation method according to the invention, the amount of the first precursor in a gaseous state can be accurately controlled, the reaction is more uniform and more controllable, and the obtained nanocrystal has uniform volume distribution and a higher luminescent quantum yield.

Claim (Index 19):
The nanocrystal according to  claim 18 , wherein the nanocrystal comprises at least one of the following substances: a compound of Group II-Group VIA, a compound of Group IV-Group VIA, a compound of Group III-Group VA, a compound of Group I-Group VIA, copper indium sulfide, and copper indium selenide;\n the compound of Group II-Group VIA comprises: zinc selenide, zinc telluride, zinc sulfide, cadmium selenide, cadmium sulfide, cadmium telluride, zinc oxide, mercuric sulfide, mercuric telluride, magnesium oxide, magnesium sulfide, magnesium telluride, cadmium sulfoselenide, cadmium sulfotelluride, zinc sulfoselenide, zinc sulfotelluride, zinc selenotelluride, mercuric sulfoselenide, mercuric sulfotelluride, mercuric selenotelluride, cadmium zinc selenide, cadmium zinc sulfide, cadmium zinc telluride, cadmium mercury sulfide, cadmium zinc selenotelluride, cadmium zinc sulfotelluride, cadmium zinc sulfoselenide, cadmium mercury sulfotelluride, cadmium mercury sulfoselenide, cadmium mercury selenotelluride, zinc mercury sulfotelluride, zinc mercury sulfoselenide, zinc mercury selenotelluride, zinc magnesium sulfide, zinc magnesium telluride, zinc magnesium selenide, zinc magnesium oxide, zinc magnesium oxysulfide, zinc magnesium sulfoselenide, zinc magnesium telluroselenide and zinc magnesium sulfotelluride; the compound of Group IV-Group VIA comprises: lead sulfide, lead selenide, lead telluride, tin sulfide, tin selenide, tin telluride, tin sulfotelluride, tin sulfoselenide, tin selenotelluride, lead sulfotelluride, lead sulfoselenide, lead selenotelluride, lead tin sulfide, lead tin telluride, lead tin selenide, lead tin sulfoselenide and lead tin sulfotelluride; the compound of Group III-Group VA comprises: indium phosphide, indium arsenide, gallium nitride, gallium phosphide, gallium arsenide, gallium antimonide, aluminum nitride, aluminium phosphide, aluminium arsenide, aluminum antimonide, indium nitride, indium antimonide, gallium phosphide nitride, gallium arsenide nitride, gallium antimonide nitride, gallium antimonide phosphide, gallium arsenide phosphide, aluminium phosphide nitride, aluminum arsenide nitride, gallium aluminum phosphide nitride, gallium aluminum antimonide nitride, gallium aluminum antimonide phosphide, gallium aluminum arsenide phosphide, gallium indium phosphide nitride, gallium indium arsenide nitride, gallium indium antimonide nitride, gallium indium antimonide phosphide, gallium indium arsenide phosphide, aluminum indium nitride, aluminum indium phosphide, aluminum indium arsenide and aluminum indium antimonide; and the compound of Group I-Group VI comprises: copper sulfide, copper telluride, copper selenide, silver sulfide, silver selenide and silver telluride.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 90.0
- Lexical Diversity: 2.19767
- Patent Class: 423.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14677999', '15314820', '15004697', '12822691', '13142182']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.817278515291262
- 35 USC 102 Novelty (BERT): 0.5473128920730246
- Combined Prediction Score: 0.7902819529694383
- Mean Citation Score: 374.58247400000016
- Max Citation Score: 421.05997
- Similarity Product: 288.6012333237434

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