1. School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea
2. Mobile Display Yield Enhancement, Samsung Display Co., Asan 31454, Korea
3. School of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, Korea
4. Department of Chemistry and Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States