Abstract
A direct synthesis of new donor materials for organic photovoltaic cells is reported. Diaryindenotetracenes were synthesized utilizing a Kumada-Tamao-Corriu cross-coupling of peri-substituted tetrachlorotetracene with spontaneous indene annulation via C-H activation. Vacuum deposited planar heterojunction organic photovoltaic cells incorporating these molecules as electron donors exhibit power conversion efficiencies exceeding 1.5% with open-circuit voltages ranging from 0.7 to 1.1 V when coupled with C 60 as an electron acceptor.
Original language | English (US) |
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Pages (from-to) | 1390-1393 |
Number of pages | 4 |
Journal | Organic Letters |
Volume | 14 |
Issue number | 6 |
DOIs | |
State | Published - Mar 16 2012 |