Star-burst 1H-pyrazolo[3,4-b]quinoline as chromophore for light-emitting diodes and photovoltaic devices

Abstract

The current–voltage and electroluminescent features of a novel star-burst 1H-pyrazolo[3,4-b]quinoline chromophore show that it has potential applications as a material for light-emitting diodes. The electroluminescence covers the white light spectral range from 420 nm up to 610 nm and achieves maximal value about 18 Cd/m² at biased voltage 23 V. The photovoltaic efficiency achieved was equal to about 0.08%.

Keywords:

• organic electroluminescence
• organic photovoltaics
• 1H-pyrazolo[3,4-b]quinolines
• star-burst pyrazolo[3,4-b]quinolines

Acknowledgement

This work was supported by grant 66/N-Singapore/2007/0.