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Abbotto A.,Milan Bicocca Solar Energy Research Center Solar | Abbotto A.,University of Perugia | Leandri V.,Milan Bicocca Solar Energy Research Center Solar | Manfredi N.,Milan Bicocca Solar Energy Research Center Solar | And 5 more authors.
European Journal of Organic Chemistry | Year: 2011

A new class of tribranched dye-sensitized solar cell (DSC) sensitizers carrying two conjugated donors and two acceptor/anchoring groups is introduced. The approach leads to significantly different optical properties and enhanced stability with respect to related di- and monobranched dyes and yields power conversion efficiencies of up to 5.05 %, which is possibly limited by the computed nonoptimal dye packing on the semiconductor surface. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Park J.,University of Turin | Park J.,CEA Grenoble | Barbero N.,University of Turin | Yoon J.,Ecole Polytechnique Federale de Lausanne | And 11 more authors.
Physical Chemistry Chemical Physics | Year: 2014

Two novel symmetrical blue squaraine sensitizers were synthesized, which exhibit panchromatic light harvesting and a record efficiency over 6% with Jsc exceeding 14 mA cm-2, and Voc over 620 mV under 1 sun. Their color, low cost, easiness of synthesis, and relatively high photo- and thermal stability open up the way for commercial applications. This journal is © the Partner Organisations 2014. Source

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