New host materials for blue emitters

Highly efficient greenish blue-emitting organic diodes based on pyrene derivatives

“…Both DP and DPB display impressive thermal stability and amorphous propensity. The high Tg recorded for these compounds is attributed to the presence of the rigid pyrene segment in the molecular architecture [10,11].…”

“…Organic small molecules containing polyaromatics such as pyrene, carbazole and anthracene have been reported as efficient emitting hole transporters, host materials and emitters [6,[10][11][12][13]. Although pyrene is a blue-emitting chromophore and has been proposed as a fluorescent temperature indicator [14], investigations focused on using pyrene derivatives as an emitter for OLEDs are very limited.…”

Pyrene-Based Materials for Organic Electronics

“…1,3,5-Tri-1-pyrenylbenzene (105) was designed as a host material for blue emitters (Figure 48). 155 A highly efficient blue OLED device was produced using compound 105 as host material. This fact comes from the favorable relation in the energy diagram in which both HOMO and LUMO levels of the dopant are enclosed in the band gap of the host material.…”

Recent Development of Blue Fluorescent OLED Materials and Devices

“…The other stable sky-blue dopant whose structure was recently published by Suzuki and coworkers of Canon [21] is known as IDE-102. In this paper, it is reported to have a (di-ptoyl)aminostyrene with a biphenyl core structure, as shown in Fig.…”