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Examples of plastic solar-cell technology to illustrate core concepts in chemistry are presented. The principles of operations of a plastic solar cell could be used to introduce key concepts, which are fundamentally important to understand photosynthesis and the basic process that govern most novel optoelectronic devices.

Abstract: Strategies to synthesize a cationic carbosilane dendron containing the antibiotic penicillin V potassium salt (PenVK) at the focal point are discussed. The preparation of such a compound requires the [...]

Research has been conducted on the soluble C (sub)60 -(pi-conjugated oligomer) dyads. The synthesis of these dyads has been carried out and the results indicate that in the resulting electro- and photoactive dyads the singlet-singlet energy transfer and the intramolecular electron transfer compete with each other in the photoexcited oligomer deactivation.

A general synthetic route for the preparation of optically active TTF and TCAQ dimers containing binaphthyl units is developed. The synthesis of binaphthyl derivatives bifunctionalized with triphenylophosphine, phosphonate, hydroxymethyl, and bromomethyl groups will allow to extend this synthetic route to many other electroactive dimers with enhanced dimensionality and even to different conjugated-non-conjugated block copolymers.

A general synthetic route for the preparation of optically active block copolymers containing binaphthyl units is developed. The synthesis of binapthyl derivatives bifunctionalized with either carboxaldehyde or cyanomethyl groups will allow to extend this synthetic route to many other difunctionalized chromophores and lumophores.

The synthesis of metallocene-type dinuclear complexes, (TiCl2(eta5-C5H5))2 (mu-eta5-(C5H4)2SiMe2) (1) and (TiCl2(eta5-C5Me5))2(mu-eta5-eta5-(C5H4)2SiMe2) (2) proceeds through the reaction of Tl2(Me2Si(C5H4)2) with 2 equivalent of Cp'TiCl3, where Cp' refers to eta5-C5H5 or eta5-C5Me5. The dinuclear complexes are characterized by the bridging (dimethylsilylidene)bis(cyclo-pentadienyl) ligand and exhibit reactivity toward LiR, which results in a yield of (TiMe2(eta5-C5H5))2(mu-eta5-eta5-(C5H4)2SiMe2) (3) and (TiR2(eta5-C5Me5))2 (mu-eta5-eta5-(C5H4)2SiMe2) (4). The mu-oxo derivative (TiCl(eta5-C5H5))2 (mu-O) (mu-eta-eta5-(C5H4)2SiMe2) (6) is synthesized by the oxidation reaction of compound 1.

The synthesis, characterization, electrochemical, optical and photophysical examination of two novel poly(fluorene-alt-thiophene) conjugated polymers endowed with pendant perylenediimide electron acceptor units are described. The studies have shown a route to the synthesis of easily functionalizable monomers paving the way to the preparation of functionalized polymers with different properties and applications.