[1] Daegu Gyeongbuk Inst Sci & Technol DGIST, Dept Energy Sci & Engn, 333 Techno Jungang Daero, Daegu 42988, South Korea
[2] Yonsei Univ, Dept Mat Sci & Engn, Seoul 03722, South Korea
[3] Yonsei Univ, Ctr Human Oriented Triboelect Energy Harvesting, Seoul 03722, South Korea
[4] Global Technol Res, Samsung Elect, Suwon 16677, South Korea
[5] Daegu Gyeongbuk Inst Sci & Technol DGIST, Energy Sci & Engn Res Ctr, 333 Techno Jungang Daero, Daegu 42988, South Korea