1. Kyulux, Inc., Suite 227, FiaS Building 2, 4-1 Kyudai-Shinmachi, Nishi-ku, Fukuoka 819-0388, Japan
2. Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, 744 Motooka, Nishi, Fukuoka 819-0395, Japan
3. International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan