title: Diels-Alders adducts of C60 and esters of 3-(1-indenyl)-propionic acid: alternatives for [60]PCBM in polymer:fullerene solar cells.
abstract: A series of new, easily synthesized C60-fullerene derivatives is introduced that allow for optimization of the interactions between rr-P3HT and the fullerene by systematic variation of the size of the ester group. Two compounds gave overall cell efficiencies of 4.8%, clearly outperforming [60]PCBM which gives 4.3% under identical conditions.
authors: Solenne BV, Zernikepark 6, 9747AN Groningen, The Netherlands. asieval@solennebv.com.
authors: Alexander B
authors: AB
authors: Sieval
authors: Neil D
authors: ND
authors: Treat
authors: Desirée
authors: D
authors: Rozema
authors: Jan C
authors: JC
authors: Hummelen
authors: Natalie
authors: N
authors: Stingelin