Control of electronic properties of triphenylene by substitution
Control of electronic properties of triphenylene by substitution
复制标题
通过取代控制苯并菲的电子性质
DOI:
10.1016/j.orgel.2011.10.005
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发表时间:
2012
影响因子:
3.2
通讯作者:
D. Hertel
中科院分区:
文献类型:
--
作者:
A. Thiessen;H. Wettach;K. Meerholz;F. Neese;S. Höger;D. Hertel
We report a joint theoretical and experimental study of the electronic properties of triphenylene based polycyclic aromatic hydrocarbons. Their aggregation tendency is suppressed by phenyl- or diphenylamino-substitution. The influence of the substituents on the absorption properties is investigated by time-dependent density functional theory (TD-DFT). Upon chemical modification of the triphenylene core, the singlet–triplet energy gap can be reduced by up to 0.4eV. This prediction is spectroscopically verified. As a demonstration of the potential of these materials, Ir(III) doped phosphorescent organic light-emitting diodes (OLEDs) are tested, and limits of the performance are investigated. We achieve efficiencies above 30Cd/A for simple, green-emitting two layer devices.
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影响因子:
41.2
作者:
Feng, Xinliang;Marcon, Valentina;Muellen, Klaus
通讯作者:
Muellen, Klaus
影响因子:
2.8
作者:
Neese, F;Olbrich, G
通讯作者:
Olbrich, G
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
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通讯作者:
Kerstin Rosmarion
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
S. Harkema;Rahj Kicken;B. Langeveld;van Slm Siebe Mensfoort;D. Kok;R. Coehoorn
通讯作者:
R. Coehoorn
影响因子:
3.7
作者:
Baldo, MA;Adachi, C;Forrest, SR
通讯作者:
Forrest, SR