Disorder enhances thermoelectric figure of merit in armchair graphane nanoribbons
We study the thermoelectric property of graphane strips by using density functional theory calculations combined with the nonequilibrium Green's function method. It is found that figure of merit ( Z T ) can be remarkably enhanced five times by randomly introducing hydrogen vacancies to the grap...
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| Veröffentlicht in: | Applied physics letters 2009-11, Vol.95 (19), p.192114-192114-3 |
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| container_end_page | 192114-3 |
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| container_issue | 19 |
| container_start_page | 192114 |
| container_title | Applied physics letters |
| container_volume | 95 |
| creator | Ni, Xiaoxi Liang, Gengchiau Wang, Jian-Sheng Li, Baowen |
| description | We study the thermoelectric property of graphane strips by using density functional theory calculations combined with the nonequilibrium Green's function method. It is found that figure of merit
(
Z
T
)
can be remarkably enhanced five times by randomly introducing hydrogen vacancies to the graphene nanoribon derivatives-armchair graphane nanoribbons. For 5 nm wide ribbons under certain conditions,
Z
T
can be as high as 5.8 and depends on temperature linearly. The high
Z
T
, low cost, and rapid advances in the synthesis of nanoscale graphene derivatives make carbon-based materials a viable choice for thermoelectric applications. |
| doi_str_mv | 10.1063/1.3264087 |
| format | Article |
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(
Z
T
)
can be remarkably enhanced five times by randomly introducing hydrogen vacancies to the graphene nanoribon derivatives-armchair graphane nanoribbons. For 5 nm wide ribbons under certain conditions,
Z
T
can be as high as 5.8 and depends on temperature linearly. The high
Z
T
, low cost, and rapid advances in the synthesis of nanoscale graphene derivatives make carbon-based materials a viable choice for thermoelectric applications.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.3264087</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>American Institute of Physics</publisher><ispartof>Applied physics letters, 2009-11, Vol.95 (19), p.192114-192114-3</ispartof><rights>2009 American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c350t-b1fc2f5b4533aa06b97f20c5bdafbca7c783d3530f72b625cabd4a5a71839eb3</citedby><cites>FETCH-LOGICAL-c350t-b1fc2f5b4533aa06b97f20c5bdafbca7c783d3530f72b625cabd4a5a71839eb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/apl/article-lookup/doi/10.1063/1.3264087$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>314,780,784,794,1559,4512,27924,27925,76384,76390</link.rule.ids></links><search><creatorcontrib>Ni, Xiaoxi</creatorcontrib><creatorcontrib>Liang, Gengchiau</creatorcontrib><creatorcontrib>Wang, Jian-Sheng</creatorcontrib><creatorcontrib>Li, Baowen</creatorcontrib><title>Disorder enhances thermoelectric figure of merit in armchair graphane nanoribbons</title><title>Applied physics letters</title><description>We study the thermoelectric property of graphane strips by using density functional theory calculations combined with the nonequilibrium Green's function method. It is found that figure of merit
(
Z
T
)
can be remarkably enhanced five times by randomly introducing hydrogen vacancies to the graphene nanoribon derivatives-armchair graphane nanoribbons. For 5 nm wide ribbons under certain conditions,
Z
T
can be as high as 5.8 and depends on temperature linearly. The high
Z
T
, low cost, and rapid advances in the synthesis of nanoscale graphene derivatives make carbon-based materials a viable choice for thermoelectric applications.</description><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LAzEURYMoWKsL_0G2LqYm85rJdCNI_YSCCN2Hl0zSiXQm5SUu_PdW2i5dXS6cexeHsVspZlI0cC9nUDdz0eozNpFC6wqkbM_ZRAgBVbNQ8pJd5fy1r6oGmLDPp5gTdZ64H3scnc-89J6G5LfeFYqOh7j5Js9T4IOnWHgcOdLgeozEN4S7_crzEcdE0do05mt2EXCb_c0xp2z98rxevlWrj9f35eOqcqBEqawMrg7KzhUAomjsQodaOGU7DNahdrqFDhSIoGvb1Mqh7eaoUMsWFt7ClN0dbh2lnMkHs6M4IP0YKcyfCiPNUcWefTiw2cWCJabxf_jkw5x8mNLDLyiQaBk</recordid><startdate>20091109</startdate><enddate>20091109</enddate><creator>Ni, Xiaoxi</creator><creator>Liang, Gengchiau</creator><creator>Wang, Jian-Sheng</creator><creator>Li, Baowen</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20091109</creationdate><title>Disorder enhances thermoelectric figure of merit in armchair graphane nanoribbons</title><author>Ni, Xiaoxi ; Liang, Gengchiau ; Wang, Jian-Sheng ; Li, Baowen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c350t-b1fc2f5b4533aa06b97f20c5bdafbca7c783d3530f72b625cabd4a5a71839eb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ni, Xiaoxi</creatorcontrib><creatorcontrib>Liang, Gengchiau</creatorcontrib><creatorcontrib>Wang, Jian-Sheng</creatorcontrib><creatorcontrib>Li, Baowen</creatorcontrib><collection>CrossRef</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ni, Xiaoxi</au><au>Liang, Gengchiau</au><au>Wang, Jian-Sheng</au><au>Li, Baowen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Disorder enhances thermoelectric figure of merit in armchair graphane nanoribbons</atitle><jtitle>Applied physics letters</jtitle><date>2009-11-09</date><risdate>2009</risdate><volume>95</volume><issue>19</issue><spage>192114</spage><epage>192114-3</epage><pages>192114-192114-3</pages><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>We study the thermoelectric property of graphane strips by using density functional theory calculations combined with the nonequilibrium Green's function method. It is found that figure of merit
(
Z
T
)
can be remarkably enhanced five times by randomly introducing hydrogen vacancies to the graphene nanoribon derivatives-armchair graphane nanoribbons. For 5 nm wide ribbons under certain conditions,
Z
T
can be as high as 5.8 and depends on temperature linearly. The high
Z
T
, low cost, and rapid advances in the synthesis of nanoscale graphene derivatives make carbon-based materials a viable choice for thermoelectric applications.</abstract><pub>American Institute of Physics</pub><doi>10.1063/1.3264087</doi></addata></record> |
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| ispartof | Applied physics letters, 2009-11, Vol.95 (19), p.192114-192114-3 |
| issn | 0003-6951 1077-3118 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_3264087 |
| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| title | Disorder enhances thermoelectric figure of merit in armchair graphane nanoribbons |
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