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- W1986289917 abstract "In this study, we synthesize a new iridium complex by introducing sterically bulky spacers into the framework of fac tris(2-phenylpyridine) iridium [Ir(ppy) 3 ]. The main purpose is to reduce concentration quenching in Ir(ppy) 3 . The new complex exhibits a high (0.71) photoluminescence (PL) quantum yield in solution. The devices fabricated with the new Ir complex as an emitting dopant confirm that concentration quenching is almost negligible even at relatively high doping concentrations. For example, at a current density of 100 mA/cm 2 , the current efficiency for the devices with 7 and 26 wt% dopants are 8.9 and 10.2 cd/A respectively. These characteristics can be explained by a better energy transfer between the host and dopants upon introducing the sterically hindered spacers into the phosphorescent dyes." @default.
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- W1986289917 date "2001-05-08" @default.
- W1986289917 modified "2023-09-27" @default.
- W1986289917 title "New iridium derivatives with good electrophosphorescence properties" @default.
- W1986289917 doi "https://doi.org/10.1117/12.427005" @default.
- W1986289917 hasPublicationYear "2001" @default.
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