Fasten the pigtail wires to the outlet, then join the wires with wire connectors. The bare copper goes to the ground screw (green), the white to either of the silver terminals, and the black to either ...

† Department of Chemistry, Pohang University of Science and Technology (POSTECH), Gyeogbuk 790-784, Korea ‡ Department of Applied Chemistry, Kyung Hee University, Gyeonggi-do 446-701, Korea Article ...