A Field Emission Light Source Using a Reticulated Vitreous Carbon (RVC) Cathode and Cathodoluminescent Phosphors

作者：Cao Mitchell M; Chacon Rebecca J; Hunt Charles E^*

来源：Journal of Display Technology, 2011, 7(9): 467-472.

DOI：10.1109/JDT.2011.2116151

• Carbon
• vacuum microelectronics
• cathodoluminescence (CL)
• electron sources
• light sources
• phosphors

A field emission light source using cathodoluminescent (CL) phosphors and a reticulated vitreous carbon (RVC) cathode is presented. The flat-format design requires no microfabrication technology and can be easily configured for light emission at different wavelengths, ranging from UV to visible, to infrared. The operation of a visible-spectrum light source was demonstrated by testing both unpackaged devices in a vacuum environment and proof-of-concept packaged lamps. The results exhibited excellent field emission properties with a minimum extraction field of 1.7 V/mu m and good uniformity. Luminance characteristics were also excellent, with a white CL phosphor being excited up to approximately 12 000 Cd/m(2). Lower levels of luminance are applicable to display backlights.

• 出版日期2011-9