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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1021/la2011265
|2 doi
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|a pubmed24n0700.xml
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|a DE-627
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|a eng
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|a Ruther, Rose E
|e verfasserin
|4 aut
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|a Formation of smooth, conformal molecular layers on ZnO surfaces via photochemical grafting
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 29.12.2011
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|a Date Revised 21.11.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2011 American Chemical Society
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|a We have investigated the photochemical grafting of organic alkenes to atomically flat ZnO(10 ̅10) single crystals and ZnO nanorods as a way to produce functional molecule-semiconductor interfaces. Atomic force microscopy shows that photochemical grafting produces highly conformal, smooth molecular layers with no detectable changes in the underlying structure of the ZnO terraces or steps. X-ray photoelectron spectroscopy measurements show that grafting of a methyl ester-terminated alkene terminates near one monolayer, while alkenes bearing a trifluoroacetamide-protected amine form very smooth multilayers. Even with multilayers, it is possible to deprotect the amines and to link a second molecule to the surface with excellent efficiency and without significant loss of molecules from the surface. This demonstrates that the use of photochemical grafting, even in the case of multilayer formation, enables multistep chemical processes to be conducted on the ZnO surface. Photoresponse measurements demonstrate that functionalization of the surface does not affect the ability to induce field effects in the underlying ZnO, thereby suggesting that this approach to functionalization may be useful for applications in sensing and in hybrid organic-inorganic transistors and related devices
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Alkenes
|2 NLM
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|a Zinc Oxide
|2 NLM
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|a SOI2LOH54Z
|2 NLM
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|a Franking, Ryan
|e verfasserin
|4 aut
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|a Huhn, Alex M
|e verfasserin
|4 aut
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|a Gomez-Zayas, Jaritza
|e verfasserin
|4 aut
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|a Hamers, Robert J
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 27(2011), 17 vom: 06. Sept., Seite 10604-14
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:27
|g year:2011
|g number:17
|g day:06
|g month:09
|g pages:10604-14
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|u http://dx.doi.org/10.1021/la2011265
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