Table 2. Summary of the key device performance for the red OLEDs.

Emitter	V on a [V]	λ EL b [nm]	L max c [cd m−2]	CEmaxd [cd A−1]	PEmaxe [lm W−1]	EQEf [%] max/100/1000	FWHMg [nm eV−1]	CIEh [x, y]
PhCzBN	2.6	614	78 590	42.5	47.6	31.5/28.6/23.0	40/0.13	(0.664, 0.336)
PhBCzBN	2.6	626	57 971	30.5	35.6	33.6/24.3/15.4	44/0.14	(0.682, 0.317)
BCzBN	2.6	636	46 568	27.7	36.2	33.8/20.2/12.5	44/0.14	(0.700, 0.300)

^aTurn-on voltage recorded at a luminance of 1 cd m⁻².

^bMaximum EL wavelength.

^cMaximum brightness.

^dMaximum current efficiency.

^eMaximum power efficiency.

^fMaximum external quantum efficiency at 100 cd m⁻²/1000 cd m⁻².

^gFWHM of EL spectra.

^hCIE coordinates.