Highly efficient thermally activated fluorescence of a new rigid Cu(I) complex [Cu(dmp)(phanephos)]

被引：148

作者：

Czerwieniec, Rafal ^{[1
]}

Kowalski, Konrad ^{[2
]}

Yersin, Hartmut ^{[1
]}

机构：

[1] Univ Regensburg, Inst Phys & Theoret Chem, D-93040 Regensburg, Germany

[2] Univ Lodz, Fac Chem, Dept Organ Chem, PL-91403 Lodz, Poland

来源：

DALTON TRANSACTIONS | 2013年 / 42卷 / 27期

关键词：

LIGHT-EMITTING-DIODES; DELAYED FLUORESCENCE; CHARGE-TRANSFER; PHOTOPHYSICAL PROPERTIES; TRIPLET-STATE; COPPER(I); PHOSPHORESCENCE; EMISSION; TEMPERATURE; LUMINESCENCE;

D O I：

10.1039/c3dt51006a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The rigid [Cu(dmp)(phanephos)](+) complex displays a high luminescence quantum yield of 80% at ambient temperature. In contrast to the long-lived phosphorescence of 240 mu s at T < 120 K with a radiative rate of k(r) = 3 x 10(3) s(-1), the ambient-temperature emission represents a thermally activated delayed fluorescence (DF) with a decay time of only 14 mu s and a radiative rate of k(r)(DF) = 6 x 10(4) s(-1). Evidence for the involvement of the excited singlet state in the emission process is presented. This material has high potential to be applied in efficient OLEDs taking advantage of the singlet harvesting mechanism.

引用

页码：9826 / 9830

页数：5

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