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}

SEM characterization on surface morphologies of PTFE before (a) and after (b) ion implantation using 9-keV Ni⁺ ions.