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Spoondrift

金虫 (初入文坛)

[交流] 半导体材料的带隙可以通过哪些测试手段获得?谢啦!

金属氧化物半导体材料的带隙可以通过哪些测试手段获得?谢啦
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hot_cool

金虫 (小有名气)

引用回帖:
Originally posted by xutongkk at 2006-12-15 01:35 PM:
XPS,x射线光电子能谱

Yes, XPS can be used for such purpose. But as far as I know,  it can only show the valence band position. For those who need to determine the band bending, schottky barrier height, or heterojunction band discontinuity..., this might be also a good technique. I will try to find some literature on this and keep you guys updated.

UV-Vis is the most popular technique for the determination of band gap energy of semiconductor materials. But again, whether we should take the absorption edge or the inflection point, whether we need Kubelka-Munk or not??? These are all question mark to me. So I would be more than happy to know what you guys think.
9楼2006-12-15 23:46:03
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protein1

铁杆木虫 (著名写手)

★ ★
imrking(金币+2):3q
紫外-可见漫反射(UV-Vis DRS)以及扫描隧道谱(可以测定导带和价带的电势)
3楼2006-12-14 21:15:34
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Spoondrift

金虫 (初入文坛)

引用回帖:
Originally posted by shinexq at 2006-12-14 09:11 PM:
紫外

紫外-可见漫反射,对样品有什么要求?粉体可以吗?
4楼2006-12-14 22:08:05
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xutongkk

至尊木虫 (正式写手)

XPS,x射线光电子能谱
5楼2006-12-15 13:35:39
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