Traditional low-molecular weight colorants that are widely applied in textile coloration, for printing purposes and nonlinear optics, now afford bulk heterojunction solar cells in combination with soluble C(60) fullerene derivative PCBM with power conversion efficiencies up to 1.7% under standard solar radiation.

Two covalently linked triisopropylsilyl-ethynylated phenazinothiadiazoles were prepared through condensation of a spirocyclic and bicyclic tetraketone with 5,6-diaminobenzothiadiazole. The spirobisindene- the ethanoanthracene-based linkers render electron acceptors amorphous in thin films. optoelectronic properties non-conjugated dimers are indistinguishable from that crystalline monomer. Bulk ...

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