Journal Materials Science: Materials in Electronics

Abstrak

<p> <span style="color: rgb(0, 0, 0);"><span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">Multilayer graphene was prepared by thermal</span><br /> <span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">reduction of graphene oxide film at various temperatures</span><br /> <span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">(200, 400 and 500^o</span><span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">C) in argon atmosphere for an hour.</span><br /> <span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">The graphite oxide was first synthesized by using modified</span><br /> <span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">Hummers method and spin coated on quartz substrate to</span><br /> <span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">form graphene oxide film. X-ray diffraction, field emission</span><br /> <span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">scanning electron microscopy, UV&ndash;Vis spectroscopy and</span><br /> <span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">four point probe measurement were used to characterize</span><br /> <span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">the resultant multilayer graphene. The transmittance and</span><br /> <span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">sheet resistance decreased with the thermal reduction</span><br /> <span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">temperature. The lowest sheet resistance of 91.6 </span><span style="font-family: NkjjpbAdvTir_symb; font-size: 10pt;">&plusmn; </span><span style="font-size: 10pt;"><font face="CmkktyAdvPTimes">0.3 k&nbsp;</font><font face="CmsfsqAdvPSMP13">ohms</font></span><span style="font-family: CmsfsqAdvPSMP13;"><span style="font-family: CmkktyAdvPTimes;"><span style="font-size: 10pt;">/</span><br /> <span style="font-size: 10pt;">sq was obtained at temperature of 500</span>^{<span style="font-size: 11.1111px;">o</span>}<span style="font-size: 10pt; font-family: WdfhwmAdvPSSym;"><span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">C, showing almost<br /> <span style="font-size: 10pt;">100 times improvement compared to that prepared at<br /> <span style="font-size: 10pt;">200^o<span style="font-family: WdfhwmAdvPSSym; font-size: 10pt;"><span style="font-family: CmkktyAdvPTimes; font-size: 10pt;">C.</span></span></span></span></span></span></span></span></span></p> <div> &nbsp;</div>

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