Theory of photodesorption

Joel I. Gersten, Richard Janow, Narkis Tzoar

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


A theory for photodesorption of chemisorbed species is developed. Two cross sections are computed-one for photodesorption in the excited state with subsequent free atomic fluorescence and the other, the total desorption cross section in any state. A decay mechanism involving surface plasmon and particle-hole pair excitations is introduced to account for nonradiative deexcitation processes. A comparison is made to other mechanisms such as photoelectron-stimulated desorption. Estimates show that the cross section is of sufficient magnitude to be readily detected in the laboratory.

Original languageEnglish (US)
Pages (from-to)1267-1272
Number of pages6
JournalPhysical Review B
Issue number4
StatePublished - 1975
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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