000189185 001__ 189185
000189185 005__ 20181203023248.0
000189185 0247_ $$2doi$$a10.1007/s13233-013-1100-z
000189185 022__ $$a1598-5032
000189185 02470 $$2ISI$$a000318177900013
000189185 037__ $$aARTICLE
000189185 245__ $$aLanthanide(III) dendrimer complexes based on diphenylquinoxaline derivatives for photonic amplification
000189185 260__ $$aSeoul$$bPolymer Soc Korea$$c2013
000189185 269__ $$a2013
000189185 300__ $$a9
000189185 336__ $$aJournal Articles
000189185 520__ $$aA series of novel lanthanide(III) complexes (Ln=Gd, Er, Yb) based on dendritic diphenylquinoxaline (DPQ) ligands was designed and synthesized with the aim of enhancing the luminescence intensity of Er3+ and Yb3+ ions for photonic applications. The diphenyl-quinoxaline ligand was introduced as a photon antenna for efficient light harvesting and subsequent energy transfer onto the Ln(3+) ions. The dendritic complexes showed strong near-IR emission at 981 (Yb3+) and 1,530 (Er3+) nm, which was sensitized through energy transfer from the excited states of the diphenyl-quinoxaline ligands. The near-IR emission intensity of the lanthanide ions in second-generation [Ln(G2-DPQ-COO)(3)(terpy)] complexes was significantly enhanced, due to the light-harvesting effect, with respect to [Ln(G1-DPQ-COO)(3)(terpy)]. However, increasing the size of the dendron in [Ln(G3-DPQ-COO)(3)(terpy)] was found to be detrimental to the emission efficiency. This may be attributed to the twisted structure of the dendritic ligand and suggests that conformational effects should be taken into consideration when designing ligands for photonic amplification.
000189185 6531_ $$adendrimer
000189185 6531_ $$alanthanide complex
000189185 6531_ $$anear-IR luminescence
000189185 6531_ $$aenergy transfer
000189185 6531_ $$aphotonic amplification
000189185 700__ $$aEom, Yu Kyung$$uKorea Univ, WCU Ctr Photovolta Mat, Dept Adv Mat Chem, Sejong 339700, South Korea
000189185 700__ $$aRyu, Jung Ho$$uKorea Univ, WCU Ctr Photovolta Mat, Dept Adv Mat Chem, Sejong 339700, South Korea
000189185 700__ $$0241990$$aBuenzli, Jean-Claude G.$$g122803$$uKorea Univ, WCU Ctr Photovolta Mat, Dept Adv Mat Chem, Sejong 339700, South Korea
000189185 700__ $$aBaek, Jong-Beom
000189185 700__ $$aKim, Hwan Kyu$$uKorea Univ, WCU Ctr Photovolta Mat, Dept Adv Mat Chem, Sejong 339700, South Korea
000189185 773__ $$j21$$k5$$q556-564$$tMacromolecular Research
000189185 909C0 $$0252081$$pLCSL$$xU10099
000189185 909CO $$ooai:infoscience.tind.io:189185$$pSB$$particle
000189185 917Z8 $$x206725
000189185 937__ $$aEPFL-ARTICLE-189185
000189185 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000189185 980__ $$aARTICLE