Reversible photovoltaic/electroluminescent effects of Al/MH-PPV/ITO structures

Authors :: Clarissa de Almeida Olivati
Roberto Koji Onmori
Rodrigo Fernando Bianchi
A.M. de Andrade
Roberto Mendonça Faria
Débora Terezia Balogh
Source :: Synthetic Metals. 121:1579-1580
Publication Year :: 2001
Publisher :: Elsevier BV, 2001.
Abstract: Schottky diode structures employing chlorine doped MH-PPV (Methoxy-Hexiloxy-P-Phenylene-Vinylene) as active layers were prepared to study the electronic possibilities of this conjugated polymer. MH-PPV films were deposited by spin-coating technique on ITO (indium tin oxide) coated glass substrates. Aluminum contact was then vacuum evaporated. Dark conductivity characteristic is that of a rectifier diode. Upon illumination the device shows photovoltaic characteristics. When a voltage is applied, however, the structure shows electroluminescence with a peak at 606nm. In this sense, it is a reversible photonic device.