Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 121, Issue 34, Pages 18378-18384Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.7b05767
Keywords
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Funding
- National Natural Science Foundation of China [21674123]
- Award Program for a Minjiang Scholar Professorship
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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 similar to 16% and similar to 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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