am500092a_si_001.pdf (1.66 MB)
Vapor Coating Method Using Small-Molecule Organic Surface Modifiers to Replace N‑Type Metal Oxide Layers in Inverted Polymer Solar Cells
journal contribution
posted on 2014-05-14, 00:00 authored by Hyosung Choi, Hak-Beom Kim, Seo-Jin Ko, Gi-Hwan Kim, Jin Young KimWe investigate a simple fabrication
method for vapor coating small-molecule organic interlayers as replacements
for metal oxide films. The interfacial layers, which serve both as
both surface modifiers to reduce the substrate work function and electron
selective layers, maximize light absorption within the active layer
while improving electron transport and compatibility between the active
layer and cathode, leading to a ∼22% enhancement in power conversion
efficiency and similar air stability compared to devices using a ZnO
layer.