title: Inverted polymer solar cells with an ultrathin lithium fluoride buffer layer.
abstract: An ultrathin lithium fluoride (LiF) buffer layer was applied to inverted polymer solar cells with P3HT [poly(3-hexylthiophene)]:PCBM [[6,6]-phenyl C61-butyric acid methyl ester] blend films. By inserting the LiF layer between the transparent electrode and the P3HT:PCBM blend film, all parameters, including the short-circuit current, the open-circuit voltage and the fill factor, were enhanced compared to those of a reference cell without the LiF layer. The power conversion efficiency of the device with the LiF layer was thereby improved by more than 300% relative to the reference cell.
authors: Green Energy Research Division, Daegu Gyeongbuk Institute of Science and Technology, Daegu 711-873, Korea.
authors: Sang-Ju
authors: SJ
authors: Lee
authors: Seonju
authors: S
authors: Jeong
authors: Dae-Hwan
authors: DH
authors: Kim
authors: Cham
authors: C
authors: Kim
authors: Yoon-Soo
authors: YS
authors: Han