Field emission of electron anions clathrated in subnanometer-sized cages in [Ca24Al28O64]4+(4e-)
Field emission of electron anions clathrated in subnanometer-sized cages in [Ca24Al28O64]4+(4e-)
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DOI：
10.1002/adma.200306484
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发表时间：
2004-04-19
影响因子：
29.4
通讯作者：
Hosono, H
中科院分区：
文献类型：
--
作者：
Toda, Y;Matsuishi, S;Hosono, H
[Ca24Al28O64](4+)(4E(-))是一种新的无机电体，即使在300℃以下也是空气稳定的。它的电子场发射性能来源于嵌在其晶体结构中的亚纳米笼子中的电子负离子，发射电流由高电场下的Fowler-Nordheim场发射控制(见图)。场发射显示设备在环境光(插图)下显示出清晰可见的明亮光发射。
[Ca24Al28O64](4+) (4e(-)) is a new inorganic electride, which is air-stable even at similar to 300 degreesC. Its electron field-emission properties originate from electron anions encaged in subnanometer-sized cages embedded in its crystal structure, and the emission current is controlled by Fowler-Nordheim field emission at high electric fields (see Figure). Field-emission display devices demonstrate bright light emission clearly visible under ambient light (inset).