<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0379-3982</journal-id>
<journal-title><![CDATA[Revista Tecnología en Marcha]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnología en Marcha]]></abbrev-journal-title>
<issn>0379-3982</issn>
<publisher>
<publisher-name><![CDATA[Instituto Tecnológico de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0379-39822022000400057</article-id>
<article-id pub-id-type="doi">10.18845/tm.v35i4.6067</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Crecimiento de estructuras de carbono mediante deposición química en fase de vapor a baja presión]]></article-title>
<article-title xml:lang="en"><![CDATA[Growth of carbon structures through lowpressure chemical vapor deposit]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Varela-Fonseca]]></surname>
<given-names><![CDATA[Stephanie Mariela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[HernándezMurillo]]></surname>
<given-names><![CDATA[Camila]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montero-Zeledón]]></surname>
<given-names><![CDATA[Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[GutiérrezFallas]]></surname>
<given-names><![CDATA[Dionisio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Urcuyo]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Puente-Urbin]]></surname>
<given-names><![CDATA[Allen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica Escuela de Física y Escuela de Ciencia e Ingeniería de los Materiales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Costa Rica Escuela de Química Laboratorio Institucional de Microscopía, Instituto Tecnológico de Costa Rica]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica Escuela de Física ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica Escuela de Física ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad de Costa Rica Centro de Investigación en Ciencia e Ingeniería de Materiales (CICIMA). Escuela de Química. Centro de Electroquímica y Energía Química (CELEQ) ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica Escuela de Química y Laboratorio Institucional de Microscopía ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>35</volume>
<numero>4</numero>
<fpage>57</fpage>
<lpage>70</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0379-39822022000400057&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0379-39822022000400057&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0379-39822022000400057&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los alótropos de carbono han ganado interés en las últimas décadas debido a sus propiedades y a la gran variedad de posibles aplicaciones tecnológicas que han demostrado. Por dichas razones, la obtención de estos alótropos con diferentes propiedades y coberturas es ampliamente investigado. La Deposición Química en Fase de Vapor (CVD, por sus siglas en inglés) es una de las técnicas más utilizadas para obtener este tipo de materiales con una alta calidad y cobertura en una forma controlada. En CVD, se utilizan metales de transición como catalizadores, fuentes de carbono gaseosas y altas temperaturas. En este reporte, se presentan estructuras de carbono sintetizadas sobre sustratos de cobre utilizando Deposición Química en Fase de Vapor a Baja Presión (LPCVD, por sus siglas en inglés) con acetileno como fuente de carbono. Los sustratos de cobre se trataron térmicamente bajo una atmósfera reductora de hidrógeno-argón y luego se expusieron a acetileno, variando el flujo de acetileno y el tiempo de deposición. Los materiales resultantes se caracterizaron mediante microscopía óptica y espectroscopía Raman. El enfoque seguido permitió determinar las mejores condiciones de síntesis de grafeno monocapa, de crecimiento irregular.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Carbon allotropes have gained interest in recent decades due to their properties and the wide variety of possible technological applications they have demonstrated. For such reasons, obtaining these allotropes with different properties and coverage is extensively investigated. Chemical Vapor Deposition (CVD) is one of the most widely used techniques to obtain this type of materials with high quality and coverage in a controlled manner. In CVD, there are used transition metals as catalysts, gaseous carbon sources, and high temperatures. In this report, carbon-on-copper structures were synthesized using Low Pressure Chemical Vapor Deposition (LPCVD) with acetylene as a carbon source. The copper substrates were heat-treated under a reducing hydrogen-argon atmosphere and then exposed to acetylene, varying the acetylene flow and the deposition time. The resulting materials were characterized by optical microscopy and Raman spectroscopy. The approach followed allowed to determine the best conditions for the synthesis of monolayer graphene with irregular growth.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Deposición Química en Fase de Vapor (CVD)]]></kwd>
<kwd lng="es"><![CDATA[Deposición Química en Fase de Vapor a Baja Presión (LPCVD)]]></kwd>
<kwd lng="es"><![CDATA[carbono]]></kwd>
<kwd lng="es"><![CDATA[grafeno]]></kwd>
<kwd lng="es"><![CDATA[espectroscopía Raman]]></kwd>
<kwd lng="en"><![CDATA[Chemical Vapor Deposition (CVD)]]></kwd>
<kwd lng="en"><![CDATA[Low-Pressure Chemical Vapor Deposition (LPCVD)]]></kwd>
<kwd lng="en"><![CDATA[carbon]]></kwd>
<kwd lng="en"><![CDATA[graphene]]></kwd>
<kwd lng="en"><![CDATA[Raman spectroscopy]]></kwd>
</kwd-group>
</article-meta>
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