1. Advanced Materials Division
2. Korea Research Institute of Chemical Technology (KRICT)
3. Daejeon 34114
4. Korea
5. Synapse Device Creative Research Section
6. Electronics and Telecommunications Research Institute (ETRI)
7. Daejeon 34129
8. School of Materials Science and Engineering
9. Ulsan National Institute of Science and Technology (UNIST)
10. Ulsan 44919