Optical band gap of nanocompsoite MEH-PPV:TiO2 thin film

Recently, researches on composites of organic blend inorganic materials have become one of the promising materials for electronic device applications [1]. There is a study which shows that a red conjugated polymer with energy levels located between electron donors and acceptors can act as an electron acceptor or donor in efficient solar cells [2]. The interaction between titanium dioxide (TiO2) powder and poly [2-methoxy, 5-(2′-ethyl-hexyloxy)-phenylenevinylene] (MEHPPV) have been studied to investigate the role of charge pair separation and photocurrent generation in organic solar cells.