Table 2.

Summary of photophysical properties and device performance of the partially bridged boron-based type blue thermally activated delayed fluorescence (TADF) emitters.

Emitter	λmax [nm]	PLQY	${\Delta \text{E}}_{\text{ST}}^{\text{d}}$ [eV]	τd μs	Host	EQEmax [%]	CEmax [cdA−1]	CIE 1931 (x, y)	References
DBOP-Ac	–	0.98	0.013	–	DPEPO (6 wt%)	15.1	–	–	Kitamoto et al., 2015
PXB-Ac	475a	1.00	0.10	1.60a	PPF (50 wt%)	21.7	–	–	Numata et al., 2015
PXB-Sac	456a	0.76	0.12	4.02a	PPF (20 wt%)	19.0	–	–	Numata et al., 2015
PXB-SAcO	451a	0.56	0.06	2.06a	PPF (20 wt%)	20.1	–	(0.14, 0.16)	Numata et al., 2015
PXB-TMCz	443a	0.86	0.12	3.49a	PPF (20 wt%)	13.3	–	(0.14, 0.16)	Numata et al., 2015
MFAc-AzB	467c	0.99	0.24	91 PPF (20 wt%)	PPF (20 wt%)	18.2	32.6	(0.15, 0.23)	Park et al., 2016
MPAc-BO	483b	0.99	0.024	1.8 PPF(50 wt%)	PPF (50 wt%)	24.9	57.0	(0.16, 0.38)	Park et al., 2018
MPAc-BN	465b	0.75	0.05	18 PPF (50 wt%)	PPF (50 wt%)	16.0	23.7	(0.14, 0.23)	Park et al., 2018
PXB-mIC	438a	0.631	0.19	3.89/4.04 DBFPO/PPBI (20 wt%)	DBFPO/PPBI (20 wt%)	18.8/12.5	22.1/8.6	(0.14, 0.18)/ (0.14, 0.08)	Ahn et al., 2019b
PXB-DI	458a	0.971	0.09	2.57/3.33 DBFPO/PPBI (20 wt%)	DBFPO/PPBI (20 wt%)	37.4/28.4	66.2/37.8	(0.16, 0.34)/ (0.14, 0.20)	Ahn et al., 2019b
MCz-BOBO	476c	1.00	0.01	0.78 PPF (20 wt%)	PPF (20 wt%)	20.1	31.5	(0.13, 0.20)	Agou et al., 2020
MCz-BSBS	483c	0.93	0.17	2.7 PPF (20 wt%)	PPF (20 wt%)	25.9	52.9	(0.14, 0.33)	Agou et al., 2020
DOB-MSAc	470c	0.28	0.30	140 PPF (20 wt%)	PPF (20 wt%)	5.2	–	(0.16, 0.22)	Matsuo and Yasuda, 2019
DSB-MSAc	491c	0.81	0.12	22 PPF (20 wt%)	PPF (20 wt%)	20.9	–	(0.17, 0.39)	Matsuo and Yasuda, 2019
OB-MSAc	458c	0.53	0.06	12 PPF (20 wt%)	PPF (20 wt%)	12.8	–	(0.15, 0.15)	Matsuo and Yasuda, 2019

^aMeasured in oxygen-free toluene solution (10⁻⁵ M).

^bMeasured in 50 wt% doped film in PPF host.

^cMeasured in 20 wt% doped film in PPF host.

^dΔE_ST = S₁-T₁.