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Lee, Tang, Smilgies, Woll, Loth, Matvietsky, Anthony, Loo, Adv. Mater. 24 , 2692 (2012)

Crystalline acceptors for organic solar cells John Anthony, University of Kentucky Research Foundation, DMR 1035257.

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Lee, Tang, Smilgies, Woll, Loth, Matvietsky, Anthony, Loo, Adv. Mater. 24 , 2692 (2012)

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  1. Crystalline acceptors for organic solar cellsJohn Anthony, University of Kentucky Research Foundation, DMR 1035257 This project aims to develop new types of solar cells that can be made at low cost and with high efficiency. Such solar cells rely on crystalline arrays of electron-rich (donor) and electron-poor (acceptor) species. While crystalline donors are common, it is rare to encounter crystalline acceptors. In the last year, we have developed two such acceptor molecules – one based on anthradithiophene, and another on hexacene. In collaboration with the Ostroverkhova group, we found that both of the molecules at right served as reasonable electron acceptors for a variety of donors, especially the fluorinated anthradithiophene derivative central to this project. We arenow working with the Loo groupto incorporate these acceptors in to crystalline solar cells. ADT and Hexacene acceptors (top) to be used in guided crystalline solar cells (bottom right) with ADT donor shown bottom left. Kendrick, Neunzert, Payne, Purushothaman, Rose, Anthony, Haley, Ostroverkhova J. Phys. Chem.C, 116 18108 (2012) Lee, Tang, Smilgies, Woll, Loth, Matvietsky, Anthony, Loo, Adv. Mater. 24, 2692 (2012)

  2. Cross-training synthetic chemists, high-school outreachJohn Anthony, University of Kentucky Research Foundation, DMR 1035257 Because the Anthony group now has a solid handle on material synthesis, we are now attempting to cross-train the project participants. In the Spring, members of the Loo group visited UK to receive input from the Mathematics group, and to learn organic synthesis from the Chemistry group. Late this Summer, members of the Anthony group (including second-year grad. student Devin Granger, left) went to Princeton to spend a few days learning how to fabricate solar cells. This Summer, the Anthony group added Ms. Valerie Sarge, a high school Junior, to the project Ms. Sarge is working on new derivatives of anthradifuran substituted with electron-withdrawing groups to serve as photovoltaic acceptors. Devin Granger at Princeton

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