Efficient electrogenerated chemiluminescence from cyclometalated iridium(III) complexes

被引：317

作者：

Kim, JI ^{[1
]}

Shin, IS ^{[1
]}

Kim, H ^{[1
]}

Lee, JK ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Chem, Seoul 151747, South Korea

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 06期

关键词：

D O I：

10.1021/ja043721x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Very efficient electrogenerated chemiluminescence (ECL) phenomena were realized by deliberately tuning electron-transfer reactions from electrochemically generated electron donor to metal complex radical cations. By controlling the relative positions of HOMO and LUMO levels (oxidation potential and reduction potential) of Ir(III) complexes, we could obtain 77 times higher ECL from iridium(III) complexes in the presence of TPA than that of the Ru(bpy)32+/TPA system. This high ECL efficiency of new Ir(III) complexes can be used in many interesting applications such as sensors and luminescent devices. Copyright © 2005 American Chemical Society.

引用

收藏

页码：1614 / 1615

页数：2

相关论文

共 21 条

[1]

[Anonymous], PHOTOCHEMISTRY PHOTO

[2] Light-emitting electrochemical processes [J].

Armstrong, NR ;

Wightman, RM ;

Gross, EM .

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 2001, 52 :391-422

[3]

Bard A.J., 2001, ELECTROCHEMICAL METH, P735

[4] Green electrochemiluminescence from ortho-metalated tris(2-phenylpyridine)iridium(III) [J].

Bruce, D ;

Richter, MM .

ANALYTICAL CHEMISTRY, 2002, 74 (06) :1340-1342

[5] A NEW SYNTHETIC ROUTE TO THE PREPARATION OF A SERIES OF STRONG PHOTOREDUCING AGENTS - FAC TRIS-ORTHO-METALATED COMPLEXES OF IRIDIUM(III) WITH SUBSTITUTED 2-PHENYLPYRIDINES [J].

DEDEIAN, K ;

DJUROVICH, PI ;

GARCES, FO ;

CARLSON, G ;

WATTS, RJ .

INORGANIC CHEMISTRY, 1991, 30 (08) :1685-1687

[6] Electrogenerated chemiluminescence from phosphorescent molecules used in organic light-emitting diodes [J].

Gross, EM ;

Armstrong, NR ;

Wightman, RM .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (05) :E137-E142

[7] Electrogenerated chemiluminescence from derivatives of aluminum quinolate and quinacridones: Cross-reactions with triarylamines lead to singlet emission through triplet-triplet annihilation pathways [J].

Gross, EM ;

Anderson, JD ;

Slaterbeck, AF ;

Thayumanavan, S ;

Barlow, S ;

Zhang, Y ;

Marder, SR ;

Hall, HK ;

Nabor, MF ;

Wang, JF ;

Mash, EA ;

Armstrong, NR ;

Wightman, RM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (20) :4972-4979

[8] Homogeneous oxidation of trialkylamines by metal complexes and its impact on electrogenerated chemiluminescence in the trialkylamine/Ru(bpy)32+ system [J].

Kanoufi, F ;

Zu, YB ;

Bard, AJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (01) :210-216

[9] Extremely efficient electrochemiluminescence systems based on tris(2-phenylpyridine)iridium(III) [J].

Kapturkiewicz, A ;

Angulo, G .

DALTON TRANSACTIONS, 2003, (20) :3907-3913

[10] EXCITED-STATE PROPERTIES OF A TRIPLY ORTHO-METALATED IRIDIUM(III) COMPLEX [J].

KING, KA ;

SPELLANE, PJ ;

WATTS, RJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (05) :1431-1432