Article pubs.acs.org/JPCC
Polymer Solar Cells Employing Water-Soluble Polypyrrole Nanoparticles as Dopants of PEDOT:PSS with Enhanced Efficiency and Stability Xingye Zhang,†,§,# Bin Zhang,†,‡,# Xinhua Ouyang,*,† Lihui Chen,† and Hui Wu*,† †
College of Materials Engineering, Fujian Agriculture and Forest University, Fuzhou, Fujian 350108, P. R. China Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China § College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
J. Phys. Chem. C 2017.121:18378-18384. Downloaded from pubs.acs.org by KAOHSIUNG MEDICAL UNIV on 10/04/18. For personal use only.
‡
S Supporting Information *
ABSTRACT: Water-soluble polypyrrole nanoparticles (PPy NPs) were developed and demonstrated as effective modifiers of PEDOT:PSS. By using them as the anode interfaces of polymer solar cells (PSCs), these PSCs showed a high power conversion efficiency (PCE) with the value of 9.48% as doping 20% PPy NPs into PEDOT:PSS. Interestingly, the enhancement of ∼16% and ∼150% compared with that of pure PEDOT:PSS (PCE = 8.04%) and PEDOT:PSS-free (PCE = 3.76%) was observed. Importantly, the stability of these devices with 20% PPy NPs doped PEDOT:PSS was also improved significantly. The enhanced performance was possible attributed to the changes of pH value, enhanced conductivities, and morphological changes of PEDOT:PSS. Our study supplies an alternative method to obtain high-efficient PSCs with the development of polymer NPs interfacial materials.
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PEDOT:PSS film usually exhibits low conductivity (90%) was purchased from Nippon Sheet Glass Company, Ltd., and cleaned by sonication in detergent, deionized water, acetone, and isopropyl alcohol and dried in a nitrogen stream, followed by an UV−ozone treatment of 20 min. A 35 nm-thick PEDOT: PSS (Baytron P VP Al 4083, J&K Co.) or 20% PPy NPs doped
ASSOCIATED CONTENT
S Supporting Information *
The Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/acs.jpcc.7b05767. Photographs of color changes, dark J−V characteristics, and elemental composition (PDF)
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AUTHOR INFORMATION
Corresponding Authors
*E-mail:
[email protected] (X.O.). *E-mail:
[email protected] (H.W.). ORCID
Bin Zhang: 0000-0002-7176-699X Xinhua Ouyang: 0000-0003-2911-8283 Hui Wu: 0000-0002-9755-8371 Author Contributions #
These authors contributed equally to this work
Notes
The authors declare no competing financial interest.
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ACKNOWLEDGMENTS This work was financially supported from the National Natural Science Foundation of China (21674123). H.W. thanks the Award Program for a Minjiang Scholar Professorship. 18383
DOI: 10.1021/acs.jpcc.7b05767 J. Phys. Chem. C 2017, 121, 18378−18384
Article
The Journal of Physical Chemistry C
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DOI: 10.1021/acs.jpcc.7b05767 J. Phys. Chem. C 2017, 121, 18378−18384
