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Enhanced Stretchability of Poly(3-hexylthiophene) Thin Films by Ion Gel Gate Embedding
이성원,신민관,박재윤,정운룡 한국고분자학회 2013 Macromolecular Research Vol.21 No.3
We investigated the stretchability of poly(3-hexylthiophene) (P3HT) thin film and its network structure. We found that stretchability of P3HT thin film is less than 3% strain and can be barely improved by the network structure. But, the ion-gel layer on the P3HT film could improve the electrical stability up to 6%. Based on the results, we fabricated high-performance polymer transistors (1 cm2/Vs and 10E4 on-off ratio) which are reasonably working at 10% tensile strain.
Flexible, highly efficient all-polymer solar cells
김영권,김태수,김재한,강태의,이창연,강현범,신민관,( Cheng Wang ),( Biwu Ma ),정운룡,김택수,김범준 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
Polymer solar cells have shown great potential as flexible and portable power generators. These devices should offer good mechanical endurance with high power-conversion efficiency for viability in commercial applications. In this work, we developed highly efficient and mechanically stable PSCs based on all-polymer solar cells (all-PSCs) composed of polymer donor and polymer acceptor. These systems exhibit one of the highest PCE values among the reported all-PSCs (6.64%). Also, our all-PSCs had even better performance than the control polymer-fullerene devices with phenyl-C61-butyric acid methyl ester (PCBM) as the electron acceptor (6.12%). More importantly, our all-PSCs exhibited dramatically enhanced strength and flexibility compared with polymer/PCBM devices. The superior mechanical properties of all-PSCs makes them much better candidates for applications in flexible and portable devices.