Fabricating the solution-processable inverted photovoltaic devices by the dip-coating method |
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| Affiliation: | 1. School of Applied Science, Harbin University of Science and Technology, Harbin 150080, China;2. School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150080, China;1. Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong Special Administrative Region;2. Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin N.T., Hong Kong Special Administrative Region;3. Chow Yuk Ho Technology Centre for Innovative Medicine, The Chinese University of Hong Kong, Shatin N.T., Hong Kong Special Administrative Region;1. College of Computer Science and Technology, Jilin University, Changchun 130012, China;2. Key Laboratory of Symbolic Communication and Knowledge Engineering of Ministry of Education, Jilin University, Changchun 130012, China;3. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130012, China |
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| Abstract: | All solution processable photovoltaic (PV) devices have been great interests in the past decade and different processing methods have been explored to produce the PV devices. In this paper, the dip-coating method was studied to fabricate core layers in the inverted polymer photovoltaic devices, which demonstrates that the dip-coating technology has its potential to produce large area PV devices. The crystallinity of the active layers by the dip-coating method can be improved under the condition of the extended drying rate. Light absorption spectra and X-ray diffraction (XRD) patterns of the active layers were investigated to confirm the improved crystallinity of the active layers. Various morphologies of the dip-coated layers were observed by the atomic force microscopy (AFM). The best PV device achieved ∼3.4% power conversion efficiency. |
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| Keywords: | Solution processed Dip-coating method Sol–gel Polymer solar cells P3HT:PCBM |
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