1. Departmentof Physics Ewha Womans University Seoul 03760 Republic of Korea
2. Department of Physics Chungbuk National University Cheongju Chungbuk 28644 Republic of Korea
3. CNRS‐IPCMS (UMR 7504) Université de Strasbourg 23 Rue du Loess Strasbourg 67034 France
4. Department of Chemistry Ewha Womans University Seoul 03760 Republic of Korea
5. Institut Parisien de Chimie Moléculaire (IPCM) – UMR 8232 Chimie des Polyméres Sorbonne Université Faculté des Sciences; CNRS 4 Place Jussieu Paris 75005 France
6. Center for Organic Photonics and Electronics Research Kyushu University Fukuoka 819‐0395 Japan