Enhancements in device efficiency of poly(3-hexylthiophene): [6,6]-phenyl C 61-butyric acid methyl ester based solar cells with incorporation of bathocuproine
Journal
Thin Solid Films
Journal Volume
520
Journal Issue
16
Pages
5413-5416
Date Issued
2012
Author(s)
Abstract
The overall enhancement of poly(3-hexylthiophene): [6,6]-phenyl C61-butyric acid methyl ester based organic solar cell with a thin layer of bathocuproine (BCP) inserted between active layers and aluminum (Al) cathodes was investigated. X-ray and ultraviolet photoemission spectroscopy show that no reaction occurs at the active layer/BCP interface and 2 nm of BCP could effectively suppress the chemical reactions between Al and active layers. Atomic force microscope images also indicate that BCP layers can provide smoother contact surfaces with Al cathodes and suppress the generation of shunt leakage, resulting in larger V oc and better power conversion efficiency of devices. © 2012 Elsevier B.V. All rights reserved.
SDGs
Publisher
Elsevier B.V.
Type
journal article