什么是氧空位_氧空位产生的原因_高价态掺杂能否引入氧空位
本文关键词:氧空位,由笔耕文化传播整理发布。
It doesn't make sense if only concerning charge neutrality. And the real site Cr occupy should be taken into consideration. As for the forming mechanism of O vacancy, it depends on your fabrication process. 甯屾湜鏈夋墍甯姪
两个Cr(+3)替换了两个Ti(+4),然后为了满足电荷守恒,一个氧原子脱离晶格留下2个电子,,这样就达到了电荷守恒,具体的查一下SrTiO3的晶包结构。
你不掺杂也会有氧空位,高价掺杂其实和引入氧空位没有直接关系,有时反倒会抑制氧空位产生,因为价位变高,意味着会失去更多的电子,而在你的材料中,只有氧是得到电子的,所以一定程度上掺杂会让氧更难失去,如果你想引入氧空位,可以试试在一些还原性的气体中进行试验
: Originally posted by learn_living at 2015-08-11 22:57:42
It doesn't make sense if only concerning charge neutrality. And the real site Cr occupy should be taken into consideration. As for the forming mechanism of O vacancy, it depends on your fabrication p ...
: Originally posted by 童钱1990 at 2015-08-13 17:27:46
两个Cr(+3)替换了两个Ti(+4),然后为了满足电荷守恒,一个氧原子脱离晶格留下2个电子,这样就达到了电荷守恒,具体的查一下SrTiO3的晶包结构。
本文关键词:氧空位,由笔耕文化传播整理发布。
本文编号:100184
本文链接:https://www.wllwen.com/wenshubaike/gongguanliyi/100184.html