Electronic Resource
College Park, Md.
:
American Institute of Physics (AIP)
The Journal of Chemical Physics
84 (1986), S. 1901-1904
ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
The presence of fluctuating dipoles in a polar liquid has been suggested to cause an intrinsic tail of localized states extending below the conduction band edge at −V0. If such preexisting states are the final states for photoinjection into such a liquid, then they cannot be described by the conventional treatment which assumes free-particle states. In this elementary model, the effect of both free and localized final states on the Fowler theory for photoemission is determined. Well above threshold Fowler's 1/2-power law is found. The near-threshold behavior is governed by the exponential tail in the final density of states. The results compare well with recent results on photoinjection into H2O and NH3. We find V0 to lie near −0.80 eV in NH3.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.450438
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