Tuning the Intramolecular Charge Transfer Emission from Deep Blue to Green in Ambipolar Systems Based On Dibenzothiophene S S-Dioxide by Manipulation of Conjugation and Strength of the Electron Donor Units

被引：114

作者：

Moss, Kathryn C. ^{[2
]}

Bourdakos, Konstantinos N. ^{[1
]}

Bhalla, Vandana ^{[2
,3
]}

Kamtekar, Kiran T. ^{[4
]}

Bryce, Martin R. ^{[2
]}

Fox, Mark A. ^{[2
]}

Vaughan, Helen L. ^{[1
]}

Dias, Fernando B. ^{[1
]}

Monkman, Andrew P. ^{[1
]}

机构：

[1] Univ Durham, Dept Phys, Durham DH1 3LE, England

[2] Univ Durham, Dept Chem, Durham DH1 3LE, England

[3] Guru Nanak Dev Univ, Dept Chem, Amritsar 143005, Punjab, India

[4] Green Lane Industrial Estate, Zumtobel LED Div, Spennvmoon DL16 6HL, England

来源：

JOURNAL OF ORGANIC CHEMISTRY | 2010年 / 75卷 / 20期

基金：

英国工程与自然科学研究理事会;

关键词：

LIGHT-EMITTING-DIODES; ORGANIC MATERIALS; BUILDING-BLOCKS; OLIGOMERS; ENERGY; ELECTROLUMINESCENT; COPOLYMERS; POLYMERS; POLY(2,7-CARBAZOLE); MOLECULES;

D O I：

10.1021/jo100898a

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The efficient synthesis and photophysical propel ties of a series of ambipolar donor acceptor donor Systems is described where the acceptor is dibenzothrophene S,S-dioxide and the donor is fluorene, carbazole or arylamine The systems exhibit intramolecular charge transfer (ICT) states (available ICT character strengths)}editing to fluorescence emission ranging from deep blue to green with model ate to high photoluminescence quantum yields The emission properties can be effectively tuned by systematically changing die position of substitution on both donor and acceptor units (which affects the extent of conjugation) and the redox potentials of the donor units The results are supported by cyclic voltammetric data and TD-DFT calculations

引用

页码：6771 / 6781

页数：11

共 75 条

[11] Carbazole compounds as host materials for triplet emitters in organic light-emitting diodes:: Tuning the HOMO level without influencing the triplet energy in small molecules [J].