纳米线和纳米棒区别
A nanorod is distinguished from a nanowire by its length. When the properties depend on the length as well as the width, the nanostructure
is considered to be a nanorod. The critical length depends on the material, but typically occurs for aspect ratios (the ratio of length over
width, L/D) less than 100.
1. 这几个术语中,
纳米晶涵盖的范围最大.
顾名思义,
凡是纳米尺寸(<100nm)的结晶体,
都可以称作纳米晶.
2. 量子点是纳米晶的一种.
量子点的共同特征是半导体,
其尺寸需要小于激子玻尔半径的两倍,
可以光致发光.
当然即使大于激子玻尔半径的两倍,
也还可能有比较微弱的量子效应,
也可以被称作量子点.
另外因为是"点",
一般是球形或近球型.
3. 纳米线的定义为在一维空间上尺寸远超过100nm,
而在其它两微空间上的尺寸小于100nm的物体,
可以是结晶体,
也可以是自组装体.
纳米线没有材料限制,
甚至于有机或者高分子也可能通过自组装形成纳米线.
4. 纳米棒跟纳米线有些像,
只是在三维空间上尺寸都不超过100nm.
这个一般来说结晶体.
当然也有人把有机或者高分子通过自组装形成的类似结构称作纳米棒,
我还土问下:楼上所说的那尺寸是指什么?我看文献里面关于尺寸的一般有两个:diameter 以及length,那么是指哪个呢?
是Size -- 一个泛指的概念.
对于球状体而言, 一般用Diameter代替Size;
对于纳米棒和纳米线, 得同时告知Diameter(截面)和Length.
纳米线和纳米棒区别
A nanorod is distinguished from a nanowire by its length. When the properties depend on the length as well as the width, the nanostructure
is considered to be a nanorod. The critical length depends on the material, but typically occurs for aspect ratios (the ratio of length over
width, L/D) less than 100.
了解了,谢谢
真不错!!!