Lithium niobate having p-type nanowire region or n-type nanowire region, method for preparing the same, and method for converting charge carrier type of nanowire region
US11834755B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2021 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Mar 23, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y40/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present application provides a lithium niobate having a p-type nanowire region or an n-type nanowire region and a method for preparing the same. The method includes heating and then cooling a multi-domain lithium niobate crystal to confine hydrogen ions of the multi-domain lithium niobate crystal in domain wall regions; and poling the multi-domain lithium niobate crystal that has been heated by applying a voltage, to reverse a direction of polarization of one or more domains of the multi-domain lithium niobate crystal. The lithium niobate includes a lithium niobate crystal and a p-type nanowire region or an n-type nanowire region located in the lithium niobate crystal and adjacent to a surface of the lithium niobate crystal. The present application also provides a method for converting the charge carrier type of the lithium niobate nanowire region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.