Research output: Contribution to journal › Article › peer-review
Green-light emitting norbornene based terbium-containing copolymers. Synthesis, photo- and electroluminescent properties. / Bochkarev, Leonid N.; Rozhkov, Anton V.; Ilichev, Vasilii A.; Abakumov, Gleb A.; Bochkarev, Mikhail N.
In: Synthetic Metals, Vol. 190, 01.04.2014, p. 86-91.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Green-light emitting norbornene based terbium-containing copolymers. Synthesis, photo- and electroluminescent properties
AU - Bochkarev, Leonid N.
AU - Rozhkov, Anton V.
AU - Ilichev, Vasilii A.
AU - Abakumov, Gleb A.
AU - Bochkarev, Mikhail N.
PY - 2014/4/1
Y1 - 2014/4/1
N2 - New terbium-containing copolymers were prepared by ring-opening metathesis copolymerization (ROMP) of norbornene substituted terbium complex Tb(L1) 2(L2)(TPPO)2 (L1 = 1-phenyl-3-methyl-4-isobutyryl-5- pyrazolonato, L2 = 1-phenyl-3-methyl-4-(5-bicyclo[2.2.1]hept-5-en-2-yl)-5- pyrazolonato, TPPO = triphenylphosphine oxide) and carbazole-containing norbornene derivatives. The photoluminescence (PL) spectra of the copolymers contained strong narrow bands of terbium ion at 492 (5D4 → 7F6), 550 (5D4 → 7F6), 586 (5D4 → 7F4), 624 (5D4 → 7F3) nm and emission in the region of 350-450 nm assigned to copolymer matrixes. The electroluminescence (EL) spectrum of the tree-layer device of configuration of ITO/Tb-copolymer(40 nm)/BATH(30 nm)/Alq 3(30 nm)/Yb revealed intense emission bands of Tb(III) ions and a broad band at ca. 520 nm of low intensity attributed to emission from triplet level of carbazole groups. The maximum luminance of 70 cd/m2 at 17.5 V, the maximum current efficiency of 0.56 cd/A at 11 V and the maximum power efficiency of 0.16 lm/w at 11 V were achieved. The CIE coordinates (0.28, 0.47) were corresponded to green color and independent on driving voltage.
AB - New terbium-containing copolymers were prepared by ring-opening metathesis copolymerization (ROMP) of norbornene substituted terbium complex Tb(L1) 2(L2)(TPPO)2 (L1 = 1-phenyl-3-methyl-4-isobutyryl-5- pyrazolonato, L2 = 1-phenyl-3-methyl-4-(5-bicyclo[2.2.1]hept-5-en-2-yl)-5- pyrazolonato, TPPO = triphenylphosphine oxide) and carbazole-containing norbornene derivatives. The photoluminescence (PL) spectra of the copolymers contained strong narrow bands of terbium ion at 492 (5D4 → 7F6), 550 (5D4 → 7F6), 586 (5D4 → 7F4), 624 (5D4 → 7F3) nm and emission in the region of 350-450 nm assigned to copolymer matrixes. The electroluminescence (EL) spectrum of the tree-layer device of configuration of ITO/Tb-copolymer(40 nm)/BATH(30 nm)/Alq 3(30 nm)/Yb revealed intense emission bands of Tb(III) ions and a broad band at ca. 520 nm of low intensity attributed to emission from triplet level of carbazole groups. The maximum luminance of 70 cd/m2 at 17.5 V, the maximum current efficiency of 0.56 cd/A at 11 V and the maximum power efficiency of 0.16 lm/w at 11 V were achieved. The CIE coordinates (0.28, 0.47) were corresponded to green color and independent on driving voltage.
KW - Copolymer
KW - Electroluminescence
KW - Photoluminescence
KW - ROMP
KW - Terbium
UR - http://www.scopus.com/inward/record.url?scp=84897677665&partnerID=8YFLogxK
U2 - 10.1016/j.synthmet.2014.02.007
DO - 10.1016/j.synthmet.2014.02.007
M3 - Article
AN - SCOPUS:84897677665
VL - 190
SP - 86
EP - 91
JO - Synthetic Metals
JF - Synthetic Metals
SN - 0379-6779
ER -
ID: 39928717