| 摘要 |
A field emission light source ( 100 ) includes: a cathode ( 111 ); a nucleation layer ( 112 ) formed on the cathode; a field emission portion ( 102 ) formed on the nucleation layer; and a light-permeable anode ( 117 ) arranged over the cathode. The field emission portion includes an isolating layer ( 113 ) formed on the cathode; a plurality of isolating posts ( 114 ) disposed on the isolating layer; and a plurality of field emitters ( 115 ) located on the respective isolating posts. The field emitters contain niobium. The isolating posts contain silicon nitride. Preferably, the field emitter has a diameter ranging from about 0.5 nanometers to 10 nanometers.
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