Open AccessDetermination of photoelectric current by voltage between anode and cathode, intensity and frequency of light
Author(s) -
Liu Changshi,
Wenli Liu
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.028401
Subject(s) - photoelectric effect , cathode , current (fluid) , anode , wavelength , intensity (physics) , physics , light intensity , voltage , optics , ray , atomic physics , optoelectronics , materials science , computational physics , electrode , electrical engineering , quantum mechanics , thermodynamics , engineering
Based on the Fermi-Dirac distribution, a typical numerical method to calculate photoelectric current by voltage between anode and cathode in vacuum is developed. The results of simulations agree very well with the observed curves consisting of photoelectric current and voltage. Then, the contribution of intensity of incident light to photoelectric current is obtained mathematically. Finally, the wavelength of incident light is related to photoelectric current theoretically. Hence, photoelectric current can be predicted.