CPC C09K 11/06 (2013.01) [H01L 51/0043 (2013.01); H01L 51/0067 (2013.01); C09K 2211/1466 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5092 (2013.01)] | 9 Claims |
1. A composition comprising a light-emitting material having a photoluminescent spectrum with a peak wavelength of more than 600 nm and non-polymeric material of formula (I):
wherein:
Ar1, Ar2, Ar3 and Ar4 are each independently a C6-20 aryl group which is unsubstituted or substituted with one or more substituents,
Ar5 independently in each occurrence is
wherein R1 in each occurrence is independently a substituent; R2 in each occurrence is independently a substituent wherein the R2 groups may be linked to form a ring; p is 0, 1, or 2; q is 0, 1, 2, 3, or 4; and r is 0, 1, 2, or 3;
and m is 1, 2 or 3.
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