Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 3, Issue 9, Pages 3244-3247Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am200729k
Keywords
hole-injection layer; solution processing; sol-gel technique; molybdenum oxide; organic solar cells
Funding
- IWT [06084]
- Institute for the Promotion of Innovation by Science and Technology in Flanders (IWT)
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We report on a sol-gel-based technique to fabricate MoO3 thin films as a hole-injection layer for solution-processed or thermally evaporated organic solar cells. The solution-processed MoO3 (sMoO(3)) films are demonstrated to have equal performance to hole-injection layers composed of either PEDOT:PSS or thermally evaporated MoO3 (eMoO(3)), and the annealing temperature at which the sol-gel layer begins to work is consistent with the thermodynamic analysis of the process. Finally, the shelf lifetime of devices made with the sMoO(3) is similar to equivalent devices prepared with a eMoO(3) hole-injection layer.
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