title: Efficient solution-processed small-molecule solar cells with inverted structure.
abstract: We successfully demonstrate inverted structure small-molecule (SM) solar cells with an efficiency of 7.88% using ZnO and PEIE as an interfacial layer. Modification of ZnO with a cost-effective PEIE thin layer increases the efficiency of the inverted cell as a result of reducing the work function of the cathode and suppressing the trap-assisted recombination. In addition to the high efficiency, the inverted SM solar cells are relatively stable in air compared to conventional cells.
authors: Center for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, California 93106-5090, USA.
authors: Aung Ko Ko
authors: AK
authors: Kyaw
authors: Dong Hwan
authors: DH
authors: Wang
authors: Vinay
authors: V
authors: Gupta
authors: Jie
authors: J
authors: Zhang
authors: Suresh
authors: S
authors: Chand
authors: Guillermo C
authors: GC
authors: Bazan
authors: Alan J
authors: AJ
authors: Heeger
mesh_terms: D000327:Adsorption; D011211:Electric Power Supplies; D004566:Electrodes; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008422:Materials Testing; D008968:Molecular Conformation; D011094:Polyethyleneimine / Q000031:analogs & derivatives* / Q000737:chemistry; D012993:Solar Energy; D012996:Solutions; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D012996:Solutions; C082713:hydroxyethylated polyethyleneimine; D011094:Polyethyleneimine; D015034:Zinc Oxide