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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1021/la401781e
|2 doi
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|a pubmed24n0764.xml
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|a (DE-627)NLM22917261X
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|a (NLM)23855923
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Li, Fei Hua
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Covalent attachment of diamondoid phosphonic acid dichlorides to tungsten oxide surfaces
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 25.02.2014
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|a Date Revised 06.08.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Diamondoids (nanometer-sized diamond-like hydrocarbons) are a novel class of carbon nanomaterials that exhibit negative electron affinity (NEA) and strong electron-phonon scattering. Surface-bound diamondoid monolayers exhibit monochromatic photoemission, a unique property that makes them ideal electron sources for electron-beam lithography and high-resolution electron microscopy. However, these applications are limited by the stability of the chemical bonding of diamondoids on surfaces. Here we demonstrate the stable covalent attachment of diamantane phosphonic dichloride on tungsten/tungsten oxide surfaces. X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared (FTIR) spectroscopy revealed that diamondoid-functionalized tungsten oxide films were stable up to 300-350 °C, a substantial improvement over conventional diamondoid thiolate monolayers on gold, which dissociate at 100-200 °C. Extreme ultraviolet (EUV) light stimulated photoemission from these diamondoid phosphonate monolayers exhibited a characteristic monochromatic NEA peak with 0.2 eV full width at half-maximum (fwhm) at room temperature, showing that the unique monochromatization property of diamondoids remained intact after attachment. Our results demonstrate that phosphonic dichloride functionality is a promising approach for forming stable diamondoid monolayers for elevated temperature and high-current applications such as electron emission and coatings in micro/nano electromechanical systems (MEMS/NEMS)
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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 Chlorides
|2 NLM
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|a Oxides
|2 NLM
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|a Phosphorous Acids
|2 NLM
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|a phosphonic acid
|2 NLM
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|a 13598-36-2
|2 NLM
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|a tungsten oxide
|2 NLM
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|a 940E10M08M
|2 NLM
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|a Tungsten
|2 NLM
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| 650 |
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7 |
|a V9306CXO6G
|2 NLM
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| 700 |
1 |
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|a Fabbri, Jason D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yurchenko, Raisa I
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mileshkin, Alexander N
|e verfasserin
|4 aut
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1 |
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|a Hohman, J Nathan
|e verfasserin
|4 aut
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1 |
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|a Yan, Hao
|e verfasserin
|4 aut
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1 |
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|a Yuan, Hongyuan
|e verfasserin
|4 aut
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1 |
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|a Tran, Ich C
|e verfasserin
|4 aut
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1 |
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|a Willey, Trevor M
|e verfasserin
|4 aut
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|a Bagge-Hansen, Michael
|e verfasserin
|4 aut
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|a Dahl, Jeremy E P
|e verfasserin
|4 aut
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| 700 |
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|a Carlson, Robert M K
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fokin, Andrey A
|e verfasserin
|4 aut
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|a Schreiner, Peter R
|e verfasserin
|4 aut
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|a Shen, Zhi-Xun
|e verfasserin
|4 aut
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| 700 |
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|a Melosh, Nicolas A
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 29(2013), 31 vom: 06. Aug., Seite 9790-7
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:29
|g year:2013
|g number:31
|g day:06
|g month:08
|g pages:9790-7
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|u http://dx.doi.org/10.1021/la401781e
|3 Volltext
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|a AR
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|d 29
|j 2013
|e 31
|b 06
|c 08
|h 9790-7
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