We report the structural characterization and electric heating performance of carbon thin films (CTFs), which were prepared from negative-type SU-8 photoresist by deep UV exposure and following carbonization. The prepared CTFs were found to have pseudo-graphitic carbon structures containing partially graphite domains in the amorphous carbon matrix. The CTFs showed a very smooth surface morphology with a roughness of 0.42 nm. The 107 nm-thick CTFs exhibited an excellent electric heating performance by attaining a high maximal temperature of 207 °C and a rapid heating rate of 13.2 °C/s at an applied voltage of 30 V. Therefore, the CTFs prepared in this study can be applied as electrode materials for high-performance electric heaters.

    Abstract
    1 Introduction
    2 Experimental
        2.1 Materials
        2.2 Preparation of CTFs
        2.3 Characterization
    3 Results and discussion
        3.1 Characterization of PCTFs
        3.2 Electric heating performance of CDSU films
    4 Conclusions
    Acknowledgements 
    References

• Byoung‑Min Lee(Department of Polymer Science and Engineering, Chungnam National University)
• Hui‑Gyun Nam(Department of Polymer Science and Engineering, Chungnam National University)
• Hyeong Yeol Choi(Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University)
• Young Gyu Jeong(Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University)
• Sung‑Kwon Hong(Department of Polymer Science and Engineering, Chungnam National University)
• Jae‑Hak Choi(Department of Polymer Science and Engineering, Chungnam National University)