Supporting Information High performance solution-processed green phosphorescent organic light-emitting diodes with high current efficiency and long-term stability Athithan Maheshwaran, a Vijaya Gopalan Sree, a Ho-Yeol Park, a Woosum Cho, a Hyein Kim, a Raja Kumaresan, a Youngkwang Kim, b Jae Chol Lee, b Myungkwan Song, c * and Sung-Ho Jin, a * A. Maheshwaran, Dr. V. G. Sree, H. Kim, H.-Y. Park, Dr. W. Cho, H. Kim, R. Kumaresan, Prof. S.-H. Jin a Department of Chemistry Education, Graduate Department of Chemical Materials, Institute for Plastic Information and Energy Materials, Pusan National University, Busandaehakro 63-2, Busan 46241, Republic of Korea E-mail: shjin@pusan.ac.kr Y. Kim, Dr. J. C. Lee b LG Display E6 Block LG Science Park 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea Dr. M. Song c Advanced Functional Thin Films Department Surface Technology Division Korea Institute of Materials Science (KIMS) 797 Changwondaero, Changwon, Gyeongnam 51508, Republic of Korea E-mail: smk1017@kims.re.kr Electronic Supplementary Material (ESI) for Journal of Materials Chemistry C. This journal is © The Royal Society of Chemistry 2019