کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1267611 972365 2011 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cationic iridium complex for the design of soft salt-based phosphorescent OLEDs and color-tunable light-emitting electrochemical cells
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Cationic iridium complex for the design of soft salt-based phosphorescent OLEDs and color-tunable light-emitting electrochemical cells
چکیده انگلیسی

Phosphorescent Organic Light-Emitting Diodes (PhOLEDs) based on iridium (III) soft salt were designed and studied. Heteroleptic anionic iridium complex (A) was prepared with thiocyanate anions and cationic iridium complex (C) was synthesized with 4,4′-dinonyl-2,2′-byridine as the ancillary ligand. Electronic and spectroscopic properties of the resulting combination of soft salt C·A were investigated by mean of UV–visible absorption, fluorescence spectroscopy and cyclic voltammetry. DFT calculations were also performed and the electroluminescent performances evaluated. Light-emitting electrochemical cells (LECs) displaying color-variable emission were also obtained. This color tunability aroused from a modification of the molecular packing of the emissive layer with the temperature.

Figure optionsDownload as PowerPoint slideHighlights
► Phosphorescent OLEDs based on iridium (III) soft salt were designed and studied.
► LECs were also prepared with the cationic iridium complex as single emitter.
► Investigations of the electronic and spectroscopic properties of the ion-paired iridium complexes.
► Electroluminescent performances of both the OLEDs and the LECs.
► Color-variable emission from green to yellow was obtained for the LECs prepared with the cationic complex.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Electronics - Volume 12, Issue 10, October 2011, Pages 1683–1694
نویسندگان
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