Chemistry is traditionally divided into organic and inorganic chemistry. SDS of cas: 22013-33-8, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 22013-33-8
Efficient full-colour organic light-emitting diodes based on donor-acceptor electroluminescent materials with a reduced singlet-triplet splitting energy gap
A series of efficient blue-emitting materials, namely, Cz-DPVI, Cz-DMPVI, Cz-DEPVI and TPA-DEPVI, possessing a donor-acceptor architecture with dual carrier transport properties and small singlet-triplet splitting is reported. These compounds exhibit excellent thermal properties with a very high glass-transition temperature (Tg), and thus, a stable uniform thin film was formed during device fabrication. Among the weak donor compounds, specifically, Cz-DPVI, Cz-DMPVI and Cz-DEPVI, the Cz-DEPVI-based device showed the maximum efficiencies (L: 13955 cd m-2, etaex: 4.90%, etac: 6.0 cd A-1, and etap: 5.4 lm W-1) with CIE coordinates of (0.15, 0.06) at 2.8 V. The electroluminescent efficiencies of Cz-DEPVI were higher than that of the strong donor TPA-DEPVI-based device (L: 13856 cd m-2, etaex: 4.70%, etac: 5.7 cd A-1, and etap: 5.2 lm W-1). Furthermore, these blue emissive materials were used as hosts to construct efficient green and red phosphorescent OLEDs. The green device based on Cz-DEPVI:Ir(ppy)3 exhibited the maximum L of 8891 cd m-2, etaex of 19.3%, etac of 27.9 cd A-1 and etap of 33.4 lm W-1 with CIE coordinates of (0.31, 0.60) and the red device based on Cz-DEPVI:Ir(MQ)2(acac) exhibited the maximum L of 40565 cd m-2, etaex of 19.9%, etac of 26.0 cd A-1 and etap of 27.0 lm W-1 with CIE coordinates of (0.64, 0.37).
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Reference£º
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem