Electroluminescent device having a structured particle electron conductor
US5958573A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Feb 10, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
An electroluminescent device is disclosed which has an electron conductor fabricated from a stable low electron affinity substance in combination with an emitting species and a hole conductor. The hole conductor and the electron conductor transport to opposed sides of the emitting species holes and electrons respectively that cause the emitting species to undergo a quantum change of state and generate light. In one embodiment the electron conductor is comprised of a plurality of structured particles, each in electrical communication with each other, where the plurality of structured particles are small enough so as their properties deviate from the bulk properties of the substance from which the structured particles are fabricated. In this embodiment the plurality of structured particles are also crystalline in nature. The plurality of structured particles are also in contact with an emitting species and act as an electron conductor. Another embodiment of the electroluminescent device uses more than one of plurality of structured particles, more than one emitting species and more than one hole conductor, such that each combination of one plurality of structured particles, emitting …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.