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[{"key": "dc.contributor.author", "value": "Hannula, Konsta", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2012-06-13T06:47:40Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2012-06-13T06:47:40Z", "language": "", "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2012", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1218403", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/38023", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Hiilinanoputket ovat todella herkki\u00e4 niiden l\u00e4hiymp\u00e4rist\u00f6ss\u00e4 tapahtuville\r\nmuutoksille, joten niiden virrankuljetusominaisuuksia pystyt\u00e4\u00e4n suhteellisen\r\nhelposti muokkaamaan. Aromaattiset molekyylit esimerkiksi vuorovaikuttavat\r\nhiilinanoputken kanssa pii-pii -vuorovaikutusten v\u00e4lityksell\u00e4,\r\njolloin molekyylien ja hiilinanoputken v\u00e4lill\u00e4 voi tapahtua varausten siirtoa.\r\nVarausten siirtyminen taas muuttaa hiilinanoputken Fermi-tasoa ja\r\nvaikuttaa putken virrankuljetusominaisuuksiin. My\u00f6s atomeja voidaan\r\nkiinnitt\u00e4\u00e4 hiilinanoputken sein\u00e4miin esimerkiksi s\u00e4hk\u00f6staattisten vuorovaikutusten\r\navulla, jolloin varausten siirron ja Fermi-tason muutoksen\r\nmy\u00f6t\u00e4 putken virrankuljetusominaisuudet muuttuvat. N\u00e4iden esimerkkien\r\nkaltaista hiilinanoputkien s\u00e4hk\u00f6isten ominaisuuksien kemiallista muuttamista\r\nkutsutaan tavallisesti \u201ddouppaukseksi\u201d. Hiilinanoputkitransistorit,\r\njoiden elektrodit on tehty tavanomaisista metalleista, kuten kullasta tai\r\npalladiumista, ovat yleens\u00e4 p-tyyppi\u00e4. Douppaus on yksi keino saada\r\nmy\u00f6s n-tyypin hiilinanoputkitransistoreja, joita tarvitaan loogisissa piireiss\u00e4.\r\nH\u00f6yrystettyj\u00e4 alkalimetalleja on yleisesti k\u00e4ytetty hiilinanoputkitransistoreiden\r\nn-tyypin douppaukseen, ja muutos p-tyypist\u00e4 n-tyyppiin\r\non vahvistettu hiilinanoputken virrankuljetusominaisuuksia mittaamalla.\r\nSamankaltaisia suoria s\u00e4hk\u00f6isi\u00e4 mittauksia ei ole ennen tehty yksitt\u00e4isille\r\nhiilinanoputkille, jotka on altistettu liuosfaasissa olevalle alkalimetallille.\r\nT\u00e4st\u00e4 johtuen t\u00e4m\u00e4n gradun p\u00e4\u00e4tarkoitus oli tutkia liuosfaasissa\r\nolevan alkalimetallin douppausvaikutuksia yksitt\u00e4isten hiilinanoputkien\r\nvirrankuljetusominaisuuksiin. Alunperin puhtaasti p-tyypin hiilinanoputkitransistorit\r\nhavaittiin muuttuvan puhtaasti n-tyypin transistoreiksi, jotka\r\nmy\u00f6s s\u00e4ilyttiv\u00e4t melko hyvin alkuper\u00e4iset ominaisuutensa, kuten esimerkiksi\r\nON/OFF -suhteensa ja hilariippuvaisen virran kulmakertoimensa\r\ntransitioalueella. Hiilinanoputkitransistorit ovat eritt\u00e4in lupaavia pohjarakenteita\r\nnanosensorisovelluksille johtuen hiilinanoputkien herkkyydest\u00e4\r\nl\u00e4hiymp\u00e4rist\u00f6n muutoksille. Tutkimuksen toisena tavoitteena oli l\u00f6yt\u00e4\u00e4\r\ndouppausprosessin aikariippuvuus ja n\u00e4in ollen testata hiilinanoputkitransistorin\r\ntoimintaa nanosensorina. Sopivalla alkaliliuoksen laimennoksella\r\nhiilinanoputkitransistori saatiin doupattua kokonaan muutamassa tunnissa\r\nja alkalikationien tarrautuminen hiilinanoputken pinnalle havaittiin yli\r\nkolmen kertaluvun virran muutoksena.", "language": "", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Konsta Hannula (kosahann) on 2012-06-13 06:47:37.418030. Form: Pro gradu -lomake (1 tekij\u00e4) (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake-1-tekijae). JyX data:", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija@noreply.fi) on 2012-06-13T06:47:40Z\r\nNo. of bitstreams: 2\r\nURN:NBN:fi:jyu-201206131858.pdf: 16681377 bytes, checksum: efd225d2208cf40631316e3edfb830af (MD5)\r\nlicense.html: 5018 bytes, checksum: 4d8bbe8e555a0d17d86211d2f51959f6 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2012-06-13T06:47:40Z (GMT). No. of bitstreams: 2\r\nURN:NBN:fi:jyu-201206131858.pdf: 16681377 bytes, checksum: efd225d2208cf40631316e3edfb830af (MD5)\r\nlicense.html: 5018 bytes, checksum: 4d8bbe8e555a0d17d86211d2f51959f6 (MD5)\r\n Previous issue date: 2012", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "85 sivua", "language": null, "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "eng", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "alkali", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "sensori", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "hiilinanoputket", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Liquid-phase alkali-doping of individual carbon nanotube field-effect transistors", "language": null, "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201206131858", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.dcmitype", "value": "Text", "language": "en", "element": "type", "qualifier": "dcmitype", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Mathematics and Science", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Fysiikan laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Physics", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.date.updated", "value": "2012-06-13T06:47:40Z", "language": "", "element": "date", "qualifier": "updated", "schema": "dc"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": "fi", "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4033", "language": null, "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "transistorit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "nanoputket", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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