Photothermal Conversion and Electrical Characteristics of Laser-Induced Graphite Carbon
Zhang Qiuruia, Jia Guozhia, Zhao Zeijiaa, Zhou Yaoyaoa, Li Lingxiaa
aSchool of Science, Tianjin Chengjian University, Tianjin 300384, China
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The graphitic carbon has been widely investigated due to excellent optical and electrical performance. The graphitic carbon structure is prepared by a laser-induced technology. The microscopic morphology of the porous structures is analyzed through optical microscopy and scanning electron microscopy. It is confirmed that graphitic carbon is formed on the basis of the Raman spectrum analysis. The effect of the laser power and scanning rate on the photothermal conversion and electrical characteristics of the graphitic carbon film are investigated in detail. The electrical conductivity increases with the growing laser power and action time. The ability of photothermal conversion increases with the growing scanning rates, and reaches the highest temperature under the laser scanning rate of 5 cm/s at the fixed laser power of 4.5 W. Finally, the physics mechanism is discussed in depth

DOI:10.12693/APhysPolA.138.399
topics: laser-induced, graphitic carbon, photothermal conversion, electrical characteristics