Emission properties of porphyrin compounds in new polymeric PS:CBP host

نویسندگانMohammad Reza JafariEmail - Bahram Bahrami
نشریهApplied Physics A
شماره صفحاتpages 1491–1497
شماره مجلد119
نوع مقالهFull Paper
تاریخ انتشار2015
رتبه نشریهISI
نوع نشریهچاپی
کشور محل چاپآلمان

چکیده مقاله

In this study, a device with fundamental structure of ITO/PEDOT:PSS (60 nm)/PS:CBP (70 nm)/Al (150 nm) was fabricated. The electroluminescence spectrum of device designated a red shift rather than PS:CBP photoluminescence spectra. It can be suggested that the electroplex emission occurs at PS:CBP interface. By following this step, red light-emitting devices using porphyrin compounds as a red dopant in a new host material PS:CBP with a configuration of ITO/PEDOT:PSS (60 nm)/PS:CBP:porphyrin compounds(70 nm)/Al (150 nm) have been fabricated and investigated. The electroluminescent spectra of the porphyrin compounds were red-shifted as compared with the PS:CBP blend. OLED devices based on doping 3,4PtTPP and TPPNO2 in PS:CBP showed purer red emission compared with ZnTPP and CoTPP doped devices. We believe that the electroluminescence performance of OLED devices based on porphyrin compounds depends on overlaps between the absorption of the porphyrin compounds and the emission of PS:CBP.

لینک ثابت مقاله

tags: Porphyrin; Forster Resonance Energy Transfer; Soret Band; Porphyrin Molecule; Porphyrin Derivative