The initial stage of the dissociative adsorption and the surface electronic state evolution of NH3 on Si(111)-(7 × 7)
Adsorption of NH3 molecules on Si(111)-(7 × 7) has been studied by scanning tunneling microscopy. We find that the dissociative adsorption is site-selective and exhibits two adsorption structures resulting from different reaction channels: [Formula: see text] and [Formula: see text]. To explain the...
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| Veröffentlicht in: | Journal of physics. Condensed matter 2010-03, Vol.22 (8), p.085002-085002 |
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| container_title | Journal of physics. Condensed matter |
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| creator | Zang, Kan Guo, Qinmin Fu, Hao Yu, Yinghui Qin, Zhihui Cao, Gengyu |
| description | Adsorption of NH3 molecules on Si(111)-(7 × 7) has been studied by scanning tunneling microscopy. We find that the dissociative adsorption is site-selective and exhibits two adsorption structures resulting from different reaction channels: [Formula: see text] and [Formula: see text]. To explain the dissociation processes, an adsorption model for these reactions is given. Furthermore, the evolution of the local electronic structures is investigated by means of atomically resolved scanning tunneling spectroscopy to clarify the effect of different fragments on the surface states. Finally, we discuss the adsorption position of H atoms from the NH3 dissociation. |
| doi_str_mv | 10.1088/0953-8984/22/8/085002 |
| format | Article |
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Finally, we discuss the adsorption position of H atoms from the NH3 dissociation.</description><subject>Adsorption</subject><subject>Channels</subject><subject>Condensed matter</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Electronic structure</subject><subject>Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures</subject><subject>Evolution</subject><subject>Exact sciences and technology</subject><subject>Fragments</subject><subject>Impurity and defect levels; energy states of adsorbed species</subject><subject>Physics</subject><subject>Scanning tunneling microscopy</subject><subject>Solid surfaces and solid-solid interfaces</subject><subject>Surface and interface electron states</subject><subject>Surface chemistry</subject><subject>Surface structure and topography</subject><subject>Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)</subject><issn>0953-8984</issn><issn>1361-648X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp90s1uEzEQAGALgWhI-wggXxCp1G38v94jqoBWquDQVurNcuxZMNqsl7U3Up-EB-qL4TShHIp6sGyPv5nDjBF6S8kpJVovSSN5pRstlowty1VLQtgLNKNc0UoJffsSzR7NAXqT0k9CiNBcvEYHjHLdCCJmaHP9A3DoQw62wynb74Bji3MJ-pBSdMHmsAFsfYrjkEPsse39w3uaxtY6wNCBy2Psg9vm5xLYxG56oKXS13OOy-kqLCilx9Wixve_cX18iF61tktwtN_n6Obzp-uz8-ry25eLs4-XVeCS5spqra1vtHIgrKw9EaAcp0y1IFwjuKylrmEFnK68ar2EVVtLZgUVTnBPGz5HH3Z1hzH-miBlsw7JQdfZHuKUjJayJlyVNUeLZyVVlDdCstLSOXq3p9NqDd4MY1jb8c787WoB7_fAJme7drS9C-mfY6JmSvDiTnYuxOHxdTs0sx1acUab3WDN4NvCyVNOidn-h_-n8T9QiKG1</recordid><startdate>20100303</startdate><enddate>20100303</enddate><creator>Zang, Kan</creator><creator>Guo, Qinmin</creator><creator>Fu, Hao</creator><creator>Yu, Yinghui</creator><creator>Qin, Zhihui</creator><creator>Cao, Gengyu</creator><general>IOP Publishing</general><general>Institute of Physics</general><scope>IQODW</scope><scope>NPM</scope><scope>7X8</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20100303</creationdate><title>The initial stage of the dissociative adsorption and the surface electronic state evolution of NH3 on Si(111)-(7 × 7)</title><author>Zang, Kan ; Guo, Qinmin ; Fu, Hao ; Yu, Yinghui ; Qin, Zhihui ; Cao, Gengyu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i351t-a888ad986ce4a57d04e6c3126fe4c94357587ebe31bd6fd5ebf752a414c43d193</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Adsorption</topic><topic>Channels</topic><topic>Condensed matter</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Electronic structure</topic><topic>Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures</topic><topic>Evolution</topic><topic>Exact sciences and technology</topic><topic>Fragments</topic><topic>Impurity and defect levels; energy states of adsorbed species</topic><topic>Physics</topic><topic>Scanning tunneling microscopy</topic><topic>Solid surfaces and solid-solid interfaces</topic><topic>Surface and interface electron states</topic><topic>Surface chemistry</topic><topic>Surface structure and topography</topic><topic>Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zang, Kan</creatorcontrib><creatorcontrib>Guo, Qinmin</creatorcontrib><creatorcontrib>Fu, Hao</creatorcontrib><creatorcontrib>Yu, Yinghui</creatorcontrib><creatorcontrib>Qin, Zhihui</creatorcontrib><creatorcontrib>Cao, Gengyu</creatorcontrib><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of physics. Condensed matter</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zang, Kan</au><au>Guo, Qinmin</au><au>Fu, Hao</au><au>Yu, Yinghui</au><au>Qin, Zhihui</au><au>Cao, Gengyu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The initial stage of the dissociative adsorption and the surface electronic state evolution of NH3 on Si(111)-(7 × 7)</atitle><jtitle>Journal of physics. Condensed matter</jtitle><addtitle>J Phys Condens Matter</addtitle><date>2010-03-03</date><risdate>2010</risdate><volume>22</volume><issue>8</issue><spage>085002</spage><epage>085002</epage><pages>085002-085002</pages><issn>0953-8984</issn><eissn>1361-648X</eissn><coden>JCOMEL</coden><abstract>Adsorption of NH3 molecules on Si(111)-(7 × 7) has been studied by scanning tunneling microscopy. We find that the dissociative adsorption is site-selective and exhibits two adsorption structures resulting from different reaction channels: [Formula: see text] and [Formula: see text]. To explain the dissociation processes, an adsorption model for these reactions is given. Furthermore, the evolution of the local electronic structures is investigated by means of atomically resolved scanning tunneling spectroscopy to clarify the effect of different fragments on the surface states. Finally, we discuss the adsorption position of H atoms from the NH3 dissociation.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><pmid>21389404</pmid><doi>10.1088/0953-8984/22/8/085002</doi><tpages>1</tpages></addata></record> |
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| subjects | Adsorption Channels Condensed matter Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Electronic structure Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Evolution Exact sciences and technology Fragments Impurity and defect levels energy states of adsorbed species Physics Scanning tunneling microscopy Solid surfaces and solid-solid interfaces Surface and interface electron states Surface chemistry Surface structure and topography Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties) |
| title | The initial stage of the dissociative adsorption and the surface electronic state evolution of NH3 on Si(111)-(7 × 7) |
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