期刊
APPLIED PHYSICS LETTERS
卷 95, 期 4, 页码 -出版社
AIP Publishing
DOI: 10.1063/1.3157278
关键词
electric impedance; polymer electrolytes; solar cells
资金
- National Natural Science Foundation of China [50433030]
- Ministry of Science and Technology, China (MOST) National Research Project [2009CB623601]
We reported that the open-circuit voltage (V-OC) of polymer solar cells (PSCs) can be enhanced by 0.3 V via inserting a thin layer of alcohol/water-soluble polyelectrolyte between the active layer and metal electrode. The origin of the increase in V-OC can be attributed to the superposition of the built-in field with the interfacial dipole of the interlayer, and the existence of the interlayer as a dielectric was confirmed by ac impedance spectroscopy. The significant enhancement in V-OC and the simplicity of incorporation of interlayer by solution processing make this method a good candidate for further enhancing the performance of PSCs.
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