Alkali source and/or sink using ion-conducting solid electrolyte and mixed ion-electron conductor electrode
US10828618B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2017 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Aug 2, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F5/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Some variations provide an alkali metal or alkaline earth metal atom source (e.g., vapor cell) with a solid ionic conductor and a mixed ion-electron conductor electrode. Mixed ion-electron conductor electrodes are used as efficient sources and/or as sinks for alkali metal or alkaline earth metal atoms, thus enabling electrical control over metal atom content in the vapor cell. Some variations provide a vapor-cell system comprising: a vapor-cell region configured to allow a vapor-cell optical path into a vapor-cell vapor phase; a first electrode containing an mixed ion-electron conductor that is conductive for an ion of at least one element selected from Rb, Cs, Na, K, or Sr; a second electrode electrically isolated from the first electrode; and an ion-conducting layer between the first electrode and the second electrode. The ion-conducting layer is ionically conductive for at least one ionic species selected from Rb+, Cs+, Na+, K+, or Sr2+.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.