2. PHC matrices used in red and green PhOLEDs: initial results
The first two examples of PHC host matrices were presented by Wong's group in 2005. . PHC1 and PHC2 (figure 3) are both matrices based on fluorene dimers (bridged biphenyl) and/or 9,9′-spirobifluorene (9,9′-SBF). In these two matrices, the π-conjugation extends over a fluorene dimer (linked in the 2 and 2′ positions), resulting in a similar triplet state energy level for both matrices and low in energy (ET = 2.28 eV for PHC1 and PHC2)....
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PHC matrices used in red and green PhOLEDs: initial results
Conjugation breakage: an effective tool for increasing the ET of PHC matrices
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