Carbon nanotube-based flexible electrothermal film heaters with a high heating rate oleh Song-Lin Jia, Hong-Zhang Geng, Luda Wang, Ying Tian, Chun-Xia Xu, Pei-Pei Shi, Ze-Zeng Gu, Xue-Shuang Yuan, Li-Chao Jing, Zhi-Ying Guo, Jing Kong