Author/Authors :
Dittmer، نويسنده , , J.J and Lazzaroni، نويسنده , , R and Leclère، نويسنده , , Ph and Moretti، نويسنده , , P and Granstrِm، نويسنده , , M and Petritsch، نويسنده , , Marseglia E. A.، نويسنده , , E.A and Friend، نويسنده , , R.H and Brédas، نويسنده , , J.L and Rost، نويسنده , , H and Holmes، نويسنده , , A.B، نويسنده ,
Abstract :
We have studied the effects of annealing on performance and morphology of photovoltaic devices using blends of two organic semiconductors: a conjugated polymer and a soluble perylene derivative. The efficiency of such photovoltaic cells has been determined. The effect of temperature on blend morphology has been investigated for actual device films. Annealing leads to the formation of micron size perylene crystals and an enhancement of the quantum efficiency. This enhancement has been attributed to the formation of an electron conducting perylene crystal network.
Keywords :
MEH-PPV , Conjugated Polymers , Donor–acceptor blends , Phase detection , Organic solar cells , AFM tapping mode , Perylene
