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Published in:
08-12-2015
Comparing molybdenum oxide thin films prepared by magnetron sputtering and thermal evaporation applied in organic solar cells
Published in: Journal of Materials Science: Materials in Electronics | Issue 4/2016
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Abstract
We have presented an organic polymer-fullerene solar cell with molybdenum oxide (MoOx) film prepared by direct current magnetron sputtering (sMoOx) and thermal evaporation (eMoOx) as a hole transport layer (HTL), respectively. The result shows that best power conversion efficiency (PCE) of the device using sMoOx as HTL is 3.84 %, while the PCE of the devices with eMoOx film is 3.33 %. The intrinsic mechanisms behind the PCE difference were studied by analyzing the morphology, electrical and optical properties of MoOx thin films prepared by the different methods. The higher PCE obtained in the cells with sMoOx may be due to the smoother interface and higher absorption of the active layer.