1. Center
for Organic Photonics and Electronics Research (OPERA), Kyushu University, Motooka 744, Nishi, Fukuoka 819-0395, Japan
2. Laboratoire
de chimie moléculaire LCM Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France
3. Department
of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
4. Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), Chimie des Polymères, 75005 Paris, France
5. Adachi
Molecular Exciton Engineering Project, Japan Science and Technology Agency (JST), ERATO, Fukuoka 819-0395, Japan