Low-power-consumption flat-panel light-emitting device driven by field-emission electron source using high-crystallinity single-walled carbon nanotubes
Low-power-consumption flat-panel light-emitting device driven by field-emission electron source using high-crystallinity single-walled carbon nanotubes
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DOI：
10.7567/jjap.56.065101
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发表时间：
2017-04
影响因子：
1.5
通讯作者：
N. Shimoi;D. Abe;Kazuyuki Matsumoto;Y. Sato;K. Tohji
中科院分区：
文献类型：
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作者：
N. Shimoi;D. Abe;Kazuyuki Matsumoto;Y. Sato;K. Tohji
利用单壁碳纳米管(SWCNTs)湿法组装的薄膜电极有望在场致发射电子源中起到降低功耗和节能的作用。本研究的平板发光器件采用线序扫描型电极结构，电极用于电子发射的开关控制，在电极上均匀分布着结晶度高的单壁碳纳米管。该装置成功地在平板上以稳定的方式发射电子。还成功地开发了一种通过控制荧光屏的持续特性来放大亮度输出的技术。通过结合这些基本技术，世界上首次组装了平板发光器件，作为独立的平面照明器件，实现了87lm/W的高亮度效率和节能驱动。超低功耗驱动的场发射电子源的创造，以及利用这种设备的应用，有望在未来实现。
Thin electrode films assembled through a wet process using single-walled carbon nanotubes (SWCNTs) are expected to play a role in reducing power consumption and saving energy in field-emission electron sources. The flat-panel light-emitting device for this study featured a line-sequential-scanning-type electrode structure equipped with electrodes for on-and-off controls of electron emissions, on which high-crystallinity SWCNTs were uniformly distributed. The device successfully emitted electrons on the flat panel in a stable manner. A technology for amplifying the luminance output by controlling the persistence characteristics of a fluorescent screen was also successfully developed. By combining such elemental technologies, a flat-panel light-emission device, as a stand-alone planar lighting device, which achieves a high-luminance efficiency of 87 lm/W and energy-conserved driving, was assembled for the first time in the world. The creation of field-emission electron sources driven with ultralow power consumption, along with applications that utilize such devices, is expected in the future.