常见金属的功函数,具体出处忘了,仅供参考
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常见金属的功函数集中，以备查询
Metal Work Function （eV）
银Ag (silver) 4.26
铝Al (aluminum) 4.28
金Au (gold) 5.1
铯Cs (cesium) 2.14
铜Cu (copper) 4.65
锂Li (lithium) 2.9
铅Pb (lead) 4.25
锡Sn (tin) 4.42
铬Cr (Chromium) 4.6
钼Mo(Molybdenum) 4.37
钨Tungsten 4.5
镍Nickel 4.6
钛Titanium 4.33
铍Beryllium 5.0
镉Cadmium 4.07
钙Calcium 2.9
碳Carbon 4.81
钴Cobalt 5.0
钯Pd(Palladium) 5.12
铁Iron 4.5
镁Magnesium 3.68
汞Mercury 4.5
鈮Niobium 4.3
钾Potassium 2.3
铂Platinum 5.65
硒Selenium 5.11
钠Sodium 2.28
铀Uranium 3.6
锌Zinc 4.3
Notes:
Source: various (listed in my dissertation).
The actual work function is VERY dependent (usually) several factors including morphology, preparation, gas on surface, oxidation...
Aluminum is a strange one... Once exposed to atmosphere the surface oxidizes and the effective work function increases to values of 10 or 11 !!!!
Most common metals can be roughly assumed to have a work function of ~4.5