Journal
APPLIED PHYSICS EXPRESS
Volume 7, Issue 3, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.7567/APEX.7.035701
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Funding
- Project for Developing Innovation Systems of MEXT [24550211]
- Grants-in-Aid for Scientific Research [24550211] Funding Source: KAKEN
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The work function of Au surfaces modified with various substituted benzenethiols has been systematically investigated for application to the design of organic electronic devices. The work function was found to vary in the range of 4.37 to 5.48 eV depending on the substituted benzenetniol used, which included pentafluorobenzenethiol, 4-fluorobenienethiol, 4-methylbenzenethiol, 4-aminobenzenethiol, and 4-(dimethylamina)benzenethiol. Subsequent thermal annealing of the modified Au films above 373 K changed the work function back to that of an unmodified Au surface. Meanwhile, thermal desorption spectroscopy revealed species desorbing from the modified Au surfaces, indicating cleavage of the C S bond as well as the S Au bond. (C) 2014 The Japan Society of Applied Physics
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