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Cathodo-/electro-luminescent device and method of fabricating a cathodo-/electro-luminescent device using porous silicon/porous silicon carbide as an electron emitter
Cathodo-/electro-luminescent device and method of fabricating a cathodo-/electro-luminescent device using porous silicon/porous silicon carbide as an electron emitter
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机译：阴极/电致发光器件和使用多孔硅/多孔碳化硅作为电子发射体的阴极/电致发光器件的制造方法
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摘要
The invention consists of a flat panel display device that combines the simplicity of manufacture of a TFEL display with the phosphor stimulation capabilities of an FED. A phosphor such a ZnS:Mn can act as both an EL phosphor and as a cathodoluminescent phosphor. The phosphor is deposited on a porous silicon underlayer that contains a labyrinth of fissures, voids, hillocks, and microscopically rough surfaces. At the phosphor-porous silicon interface, the labyrinthine surface possesses hundreds to thousands of electric field line compression points that can be characterized by an average field enhancement. When this underlayer is the cathode, high energy electrons are injected into the phosphor producing substantial light emission even at low applied fields. Additionally, the surrounding silicon is available to integrate drive circuitry and provide a TFT at each pixel, if needed.
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