High performance field emission of carbon nanotube film emitters with a triangular shape |
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| Affiliation: | 1. National Isotope Centre, GNS Science, Lower Hutt 5010, New Zealand;2. The MacDiarmid Institute of Advanced Materials and Nanotechnology, New Zealand;3. Department of Physics, Quantum-functional Semiconductor Research Center, Dongguk University, Seoul 100-715, South Korea;4. Central Research Laboratory, Sree Balaji Medical College & Hospital (SBMCH), Bharath University, Chrompet, Chennai 600044, Tamil Nadu, India;1. Nanomaterials and Applications Lab., Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India;2. Centre of Excellence: Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India |
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| Abstract: | We report novel two-dimensional (2D) shaped carbon nanotube (CNT) field emitters using triangular-shaped CNT films and their field emission properties. Using the 2D shaped CNT field emitters, we achieved remarkable field emission performance with a high emission current of 22 mA (equivalent to an emission current density >105 A/cm2) and long-term emission stability at 1 mA for 20 h. We also discuss the field emission behavior of the 2D shaped CNT field emitter in detail. |
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