Developing cold-resistant high-adhesive electronic substrate for WIMPs detectors at CDEX

Liu Yuanyuan^{1, 2}, Cheng Jianping^{1, 2}, Pang Pan², Liao Bin^{1, 2, †}, Wu Bin^{1, 2, ‡}, Ying Minju^{1, 2}, Zhang Fengshou^{1, 2}, Chen Lin², Lv Shasha^{1, 2}, Liu Yandong^{1, 2}, Sun Tianxi^{1, 2}

The impedance spectroscopy characterization on frequency-dependent conductivity of PTFE before (black square) and after (red triangle) ion implantation using 9-keV Ni⁺ ions.