Highly Efficient Candlelight Organic Light-Emitting Diode with a Very Low Color Temperature oleh Shahnawaz, Iram Siddiqui, Mangey Ram Nagar, Abhijeet Choudhury, Jin-Tin Lin, Dovydas Blazevicius, Gintare Krucaite, Saulius Grigalevicius, Jwo-Huei Jou