G. JUSKA, K. ARLAUSKAS, G. SLIAUZYS, M. SCHARBER, A. PIVRIKAS AND R. OSTERBACKA

In bulk regioregular poly(3-hexylthiophene) / 1-(3-methoxycarbonyl) propyl-1phenyl-[6,6]-methanofullerene heterojunction using dark and photo double injection current transients the temperature and electric field dependences of bimolecular recombination coefficient (B) and ambipolar mobility (m_a ) were investigated. It was obtained that both the B and the activation energy of B are significantly lower than these of, typical for low mobility materials, Langevin recombination.