Table 3 Summary of structures and lifetime measurements of blue OLED devices A to L where the base host material mCBP is 3,3′-Di(9H-carbazol-9-yl)−1,1′-biphenyl, DBFPO is 2,8-bis(diphenylphosphineoxide)-dibenzofuran, TSPO1 is diphenyl[4-(triphenylsilyl)phenyl]phosphine oxide, Liq is lithium quinolinate, ν-DABNA is N7,N7,N13,N13,5,9,11,15-octaphenyl-5,9,11,15-tetrahydro-5,9,11,15-tetraaza-19b, 20b-diboradinaphtho[3,2,1-de:1′,2′,3′-jk] pentacene-7,13-diamine
# | Device type | EML | HBL | ETL | LT90 (h) | LT70 (h) | LT50 (h) |
|---|---|---|---|---|---|---|---|
A | Phosphorescent with DBFPO | mCBP (Host 1):Ir (Dopant 1) | DBFPO | DBFPO:Liq | 0.2 | 0.7 | 1.37 |
B | TADF with TSPO1 | mCBP (Host 1):ν-DABNA (Dopant 2) 5% | TSPO1 | TSPO1:Liq | 0.2 | 0.4 | 0.5 |
C | Phosphorescent with DBFPO | mCBP-CN (Host 2):Ir (Dopant 1) | DBFPO | DBFPO:Liq | 2.8 | 17.5 | 52.6 |
D | TADF with TSPO1 | mCBP-CN (Host 2):ν-DABNA (Dopant 2) 5% | TSPO1 | TSPO1:Liq | 0.3 | 2 | 6.8 |
E | Phosphorescent with DBFPO | mCBP-(CN)2 (Host 3):Ir (Dopant 1) | DBFPO | DBFPO:Liq | 5.4 | 29.3 | 80.3 |
F | TADF with TSPO1 | mCBP-(CN)2 (Host 3):ν-DABNA (Dopant 2) 5% | TSPO1 | TSPO1:Liq | 0.8 | 3.8 | 10.5 |
