Title :
Near-IR organic light emitting diodes based on porphyrin compounds
Author :
Soultati, Anastasia ; Papadimitropoulos, George ; Davazoglou, Dimitris ; Argitis, Panagiotis ; Alexandropoulos, Dimitris ; Politi, Christina Tanya ; Vainos, Nikolaos ; Pistolis, George ; Coutsolelos, Athanasios G. ; Vasilopoulou, Maria
Author_Institution :
NCSR “Demokritos”, Inst. of Nanosci. & Nanotechnol., Agia Paraskevi Attiki, Greece
Abstract :
Here we report on organic light-emitting diodes incorporating two porphyrin compounds exhibiting red to near infra-red (IR) emission. Especially, the compound with the long side groups (porphyrin II) has a red-shifted emission (λPLmax = 793 nm) compared to the compound with the single porphyrin ring (porphyrin I, (λPLmax = 723 nm) as a consequence of its extended π-conjugation. We studied the electroluminescence of blends with poly(9-vinyl carbazole) (PVK), achieving high color purity near-infrared electroluminescence.
Keywords :
electroluminescence; organic light emitting diodes; infra-red emission; near-IR organic light emitting diodes; near-infrared electroluminescence; organic light-emitting diodes; poly(9-vinyl carbazole; porphyrin II; porphyrin compounds; red-shifted emission; wavelength 723 nm; wavelength 793 nm; Absorption; Compounds; Energy exchange; Organic light emitting diodes; Photoluminescence; Polymers; IR; OLED; near-infrared; organic electronics; porphyrin;
Conference_Titel :
Transparent Optical Networks (ICTON), 2015 17th International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICTON.2015.7193672
