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| Type |
Symposium |
| Area |
[Polymer Chemistry - Material Chemistry Divisions Joint Symposium] Organic/Inorganic/Polymer Hybrids Materials: Present and Future |
| Room No. |
Room 325C+D |
| Time |
FRI 09:20-: |
| Code |
POMA-2 |
| Subject |
Multi-Functional Nanomaterials and Nanotechnology for Next Generation Energy Applications |
| Authors |
Dong Hwan Wang
College of ICT Engineering School of Integrative E, Chung-Ang University, Korea |
| Abstract |
Recently, stamping transfer technology using by thin films or soft mold has been considered by advanced technology to overcome limits of wet coating such as spin or dip coating, which are composed of deposition of large area and specific region, the material loss, and penetration of solvents. In this research, we investigated stamping transfer via polyurethane acylate (PUA), of which the surface energy was modified by 2-hydroxyethyl methacrylate (HEMA) to increase the transfer reproducibility. As a results, hydrophilic PUA was used to form organic bulk hetero junction (BHJ) layer onto PEDOT:PSS/ITO substrates. The transferred device revealed a comparable efficiency, 95% relative to spin coating device. In order to find a decrease of fill factor of transferred device, we observed charge recombination and resistance through impedance spectroscopy. Furthermore, we applied stamping transfer to formation of interlayer in planer-type perovskite photovoltaic cells. We have successfully fabricated the device with transferred inter-layer, 6,6-phenyl-C71 butyric acid methyl ester (PC71BM), onto perovskite layer by dry stamping transfer condition. The device exhibited enhanced Jsc and efficiency, which were caused by improved coverage of inter-layer on perovskite layer, correlated with increased electron mobility and exciton dissociation. |
| E-mail |
king0401@cau.ac.kr |
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122nd General Meeting of the KCS