作者takeiteasy (takeiteas)
看板NDHU-phy99
标题[闲聊] 奈米科技概论
时间Fri Apr 17 20:56:03 2009
以下为简单小整理,详细内容就‧‧‧
‧奈米结构的六种性质
1. Thin Film Interference
2. Non-Reflecting Coatings
3. Super Hydrophobicity
4. Self-Cleaning
5. Particulate Dichroism
6. The Localized Surface Plasmon Resonance
‧电晶体结构
。collector 。reservsoir
。emitter 。source
。base 。gate
‧半导体 p-type、n-type
‧Moore's law
‧电子漂移
。mean free path
。drift velocity
。电子在导体(直径d)中的移动方式 d >> mean free path
d ~ mean free path
d < mean free path
‧自由电子
‧光学显微镜
。成像公式 。解析度
。Numerical Aperture 。Rayleigh criterion
。Angular resolution 。Spatial resolution
。Depth of focus
‧SEM仪器侦测讯号提供的讯息
。二次电子 → 表面结构
。背向散射 → 原子序对比
。X-ray讯号 → 元素分析 (EDS)
高解析度元素分析 (WDS)
。绕射及背向 → Grain Orientation
。阴极萤光 → 半导体及绝缘体缺陷或杂质
‧SPM family
Scanning Probe Microscopy
(1) STM (Scanning Tunneling Microscopy)
(2) AFM (Atomic Force Microscopy)
(3) MFM (Magnetic Force Microscopy)
(4) Scanning Near-Field Optical Microscopy
(5) Capacitance Force Microscopy
‧STM
。Quantum Barrier
。constant current mode
。constant height mode
‧AFM
。electric dipole-dipole interaction (short range force 0.1~0.2nm)
。electric field representation、electric field (dipole)
。electric potential energy
。Leonard-Jones potential energy
。用排斥力扫瞄 - contact mode
用吸引力扫瞄 - noncontact mode
用凡得瓦力扫瞄 - noncontact mode
tapping mode 轻敲式
‧MFM
。magnetic dipole-dipole interaction (longe range force 30~200nm)
。magnetic vector potential
。B-field representation
。magnetic potential energy
。static mode、dynamic mode
有错请帮忙更正 谢谢 ~
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 134.208.41.104
1F:推 gigi356006 :推 感谢春梅跟阿凯 04/23 17:10
2F:推 ianagnyaw :YA 等你很久了贝贝 感谢春梅跟阿凯 呵呵 04/23 22:19