【摘要】 利用圆柱形结构的增强效应能提高丝状阴极场发射性能的这个特性,设计了场发射荧光灯。采用热敷法将配制好的碳纳米管(Carbon Nanotubes,CNT)浆料转移到镍丝(Ni)表面制备成丝状阴极,以及溶胶-凝胶法在圆柱形玻璃管内壁制备掺锡氧化铟(Indium Tin Oxide,ITO)薄膜作为阳极,制作场发射荧光灯。测试结果表明,该碳纳米管场发射荧光灯具有良好的场发射性能,开启电场低,仅为0.15 V/μm;CNT的场增强因子βCNT为1967;当驱动电压为4 000 V时,发光亮度达19 800cd/m2。这种亮度高、稳定性好、成本低的场发射荧光灯在照明光源领域具有很大的应用前景。更多还原

【Abstract】 A novel cylindrical geometry carbon nanotubes(CNT)field emission fluorescence lamp(FEFL)was designed.The CNT paste was transfered to the surface of the nickel wire by thermal coating method,and the indium tin oxide(ITO)thin film was fabricated in the cylinder glass pipe by sol-gel.The cylinder glass pipe with ITO film and phosphor was used as anode.The FEFL showed superior properties,such as low turn-on electric field of 0.15 V/μm,high brightness of 19 800 cd/m2 at the voltage 4 000 V,and large field enhancement factor of 1967.The FEFL is a very promising candidate as back light source.更多还原