Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 8, Issue 22, Pages 14029-14036Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b01389
Keywords
transfer-printing; PEDOT:PSS; flexible electrode; acid residue; stability; organic solar cell
Funding
- Hong Kong Polytechnic University [G-UC35]
- Nature Science Foundation of Hubei Province of China [2015CFB354]
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Highly conductive, flexible, and transparent electrodes (FTEs) of PEDOT:PSS films on plastic substrates have been achieved using strong acid treatments. However, it is rare to realize a performance attenuation of PEDOT:PSS FTEs On plastic substrates and flexible optoelectronic devices because of strong acid residues in the PEDOT:PSS matrix. Herein, we develop a feasible transfer-printing technique using mild acid's. Because of a mild and weak property of these acids and less acid residues in PEDOT:PSS matrix, the transferred PEDOT:PSS FTEs;exhibited a significant enhancement in stability, conductivity (3500 S cm(-1)), transparency, and mechanical flexibility on plastic substrates. Flexible organic solar cells with the FTEs also showed a remarkable enhancement in power conversion efficiency and stability in the ambient atmosphere. It is expected that the novel transfer-printing technique for making PEDOT:PSS FTEs is also useful in many other types of flexible optoelectronic devices.
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