Apparatus of evaluating stability of luminescent material and method of evaluating the same
US10921253B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | May 9, 2019 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | May 23, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/6432
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus to evaluate a stability of a luminescent material includes an electrochemical cell that includes a sample including a solvent and the luminescent material mixed in the solvent, a voltage application device that applies a constant voltage to the sample, a light source that irradiates a source light to the sample, and a photoluminescence measuring device that measures a luminescence spectrum of an emission light generated by the luminescent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.