Patent ID: 9349907
Filing Date: 2016-05-24
CPC Classification: C01G,C01P,C30B,H01G,H01L,Y02E,Y02P

Claim Text:
1. A method of manufacturing a metal oxide crystal, the method comprising: mixing a metal precursor material, a basic material, amphiphilic molecules and distilled water to prepare a metal precursor solution; performing a first heat treatment with the metal precursor solution to form a metal oxide; and performing a second heat treatment with the metal oxide to form a pair of metal oxide disks having a single crystalline structure, wherein the pair of metal oxide disks include a first disk, and a second disk separated from the first disk in a perpendicular direction to the first disk, wherein the metal precursor solution comprises: a first inner layer formed by hydrophobic functional groups of the amphiphilic molecules; a first outer layer formed by hydrophilic functional groups of the amphiphilic molecules; a second inner layer formed by hydrophobic functional groups of the amphiphilic molecules, the second inner layer facing the first inner layer; a second outer layer formed by hydrophilic functional groups of the amphiphilic molecules, the first and second inner layers being disposed between the first and second outer layers; first metal complex ions on the first outer layer; and second metal complex ions on the second outer layer, the first and second outer layers being disposed between the first and second metal complex ions.