Work Functions for Photoelectric Effect

光电效应的功函数

Element 元素	Work Function(eV) 功函数(eV)
Aluminum 铝	4.08
Beryllium 铍	5.0
Cadmium 镉	4.07
Calcium 钙	2.9
Carbon 碳	4.81
Cesium 铯	2.1
Cobalt 钴	5.0
Copper 铜	4.7
Gold 黄金	5.1
Iron 铁	4.5
Lead 铅	4.14
Magnesium 镁	3.68
Mercury 水星	4.5
Nickel 镍	5.01
Niobium 铌	4.3
Potassium 钾	2.3, 2.29**
Platinum 铂	6.35
Selenium 硒	5.11
Silver 银	4.26-4.73*
Sodium 钠	2.28, 2.36**
Uranium 铀	3.6
Zinc 锌	4.3

Some data from Handbook of Chemistry and Physics.

一些数据来自《化学和物理手册》。

* The case of silver apppears to be somewhat unique in that the work functions measured for different crystal faces are significantly different. For polycrystalline silver a value of 4.26 eV has been measured, but for a single crystal a value of 4.74 eV has been measured for the (111) face, with intermediate values of 4.64 eV (100) and 4.52 eV (110). Dweydari, A. W.; Mee, C. H. B. (1975). "Work function measurements on (100) and (110) surfaces of silver". Physica Status Solidi (a) 27: 223.

银的情况似乎有些特殊，因为不同晶面的功函数有显著差异。对于多晶银，测得的值为4.26 eV，但对于单晶银，(111)面的功函数为4.74 eV，(100)面的中间值为4.64 eV，(110)面的值为4.52 eV。Dweydari, A. W.; Mee, C. H. B. (1975). 'Work function measurements on (100) and (110) surfaces of silver'. Physica Status Solidi (a) 27: 223.

**See also Work Function wiki. According to a Washington State University posting, the values for K (2.29) and Na(2.36) are for polycrystalline samples.

Photoelectric Experiment

光电实验

参见功函数维基。根据华盛顿州立大学的声明，K（2.29）和Na（2.36）的值是针对多晶样品的。

Index

Tables

Data Reference
Tipler & Llewellyn
Ch 3

索引表数据参考 Tipler & Llewellyn 第3章

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