Performance improvement of conventional and inverted polymer solar cells with hydrophobic fluoropolymer as nonvolatile processing additive |
| |
| Affiliation: | 1. Beijing Key Laboratory of Novel Thin Film Solar Cells, North China Electric Power University, Beijing 102206, China;2. Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University, Wuhan 430056, China;3. School of Chemical Engineering, Wuhan University of Technology, Wuhan 430070, China;1. Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China;2. School of Physical Science and Electronics, Shanxi Datong University, Datong 037009, PR China;3. Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China;4. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China;5. College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China;6. School of Materials Science and Engineering, Shanghai University, Shanghai 200072, PR China;1. Department of Physics and Astronomy, and Institute of Applied Physics, Seoul National University, Seoul 151-747, South Korea;2. Department of Polymer Science and Engineering, Inha University, Incheon 402-751, South Korea;1. State Key Laboratory of Luminescence and application, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 3888-Dong Nan Hu Road, Changchun 130033, PR China;2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, PR China;1. Programa de Pós-Graduação em Engenharia e Ciência dos Materiais, Universidade Federal do Paraná, Caixa Postal 19011, 81531-980 Curitiba PR, Brazil;2. Departamento de Física, Universidade Federal do Paraná, Caixa Postal 19044, 81531-990 Curitiba PR, Brazil;3. Programa de Pós-Graduação em Engenharia Mecânica, Pontifícia Universidade Católica do Paraná, 1155, 80215-901 Curitiba PR, Brazil;1. Organic Nanoelectronics Laboratory, Department of Chemical Engineering, School of Applied Chemical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea;2. Research Institute of Advanced Energy Technology, Kyungpook National University, Daegu 41566, Republic of Korea;3. Polymer Rheology Laboratory, Department of Chemical Engineering, School of Applied Chemical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea |
| |
| Abstract: | The morphology of the photoactive layer critically affects the performance of the bulk heterojunction polymer solar cells (PSCs). To control the morphology, we introduced a hydrophobic fluoropolymer polyvinylidene fluoride (PVDF) as nonvolatile additive into the P3HT:PCBM active layer. The effect of PVDF on the surface and the bulk morphology were investigated by atomic force microscope and transmission electron microscopy, respectively. Through the repulsive interactions between the hydrophilic PCBM and the hydrophobic PVDF, much more uniform phase separation with good P3HT crystallinity is formed within the active layer, resulting enhanced light harvesting and improved photovoltaic performance in conventional devices. The PCE of the conventional device can improve from 2.40% to 3.07% with PVDF additive. The PVDF distribution within the active layer was investigated by secondary ion mass spectroscopy, confirming a bottom distribution of PVDF. Therefore, inverted device structure was designed, and the PCE can improve from 2.81% to 3.45% with PVDF additive. Our findings suggest that PVDF is a promising nonvolatile processing additive for high performance polymer solar cells. |
| |
| Keywords: | Polymer solar cells Nonvolatile processing additive Polyvinylidene fluoride |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
