Title of article :
Organic host–guest systems for blue emission
Author/Authors :
Bongiovanni، نويسنده , , G. and Botta، نويسنده , , C. and Communal، نويسنده , , J.E. and Cordella، نويسنده , , F. and Magistrelli، نويسنده , , L. and Mura، نويسنده , , A. and Patrinoiu، نويسنده , , G. and Picouet، نويسنده , , P. and Di-Silvestro، نويسنده , , G.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Abstract :
The photoluminescence (PL) quantum yields (QYs) and lifetimes of the 1,6-diphenyl-1,3,5-hexatriene (DPH) blue emitter and of the acceptor–donor system, DPH and p-terphenyl (P3), are investigated embedded in the nanochannels of a perhydrotriphenylene (PHTP) matrix. In the co-inclusion system, light emission takes place from DPH, due to the efficient resonant energy transfer (RET) from the P3 donor molecules. The host matrix stabilizes the guest molecules against photooxidation degradation. The largest quantum yield, up to 100%, has been found in the co-inclusion compound (IC), where excitations are localized at the emissive acceptor sites.
Keywords :
Host–guest systems , energy transfer , Time-resolved photoluminescence
Journal title :
Materials Science and Engineering C
Journal title :
Materials Science and Engineering C
