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Light emission of double-walled carbon nanotube filaments doped with yttrium and europium 被引量:1
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作者 shu qinke WANG KunLin +7 位作者 WEI JinQuan ZHU HongWei LI XinMing CHEN Xi JIA Yi GUI XuChun XU ErYang WU DeHai 《Science China(Technological Sciences)》 SCIE EI CAS 2009年第1期252-255,共4页
As the potential applications of carbon nanotubes in the field of electroluminescence, elements yttrium and europium were introduced to modify the emission properties of double-walled carbon nanotubes (DWNTs) to obtai... As the potential applications of carbon nanotubes in the field of electroluminescence, elements yttrium and europium were introduced to modify the emission properties of double-walled carbon nanotubes (DWNTs) to obtain higher efficacy and other properties. The light emission spectrum of the Y-Eu-doped DWNT filament is suppressed in the near-infrared range, while enhanced in the mid-infrared range. The doped DWNT filament can reach higher efficacy than that of the pure DWNT filament at the same input power and can work stably as long as 5000 h at 12 V. These filaments could be useful for the light sources with special functions, such as infrared light sources operated at low input power. 展开更多
关键词 carbon NANOTUBES ELECTROLUMINESCENCE EFFICACY YTTRIUM EUROPIUM
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