Flexible, Highly Efficient All-Polymer Solar Cells
- Title
- Flexible, Highly Efficient All-Polymer Solar Cells
- Authors
- 정운룡; Taesu Kim, Jae-Han Kim, Tae Eui Kang, Changyeon Lee, Hyunbum Kang, Minkwan Shin, Cheng Wang, Biwu Ma, Unyong Jeong, Taek-Soo Kim, Bumjoon J. Kim
- Date Issued
- 2015-10
- Publisher
- NATURE PUBLISHING GROUP
- Abstract
- All-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 develop highly efficient and mechanically robust all-polymer solar cells that are based on the PBDTTTPD polymer donor and the P(NDI2HD-T) polymeracceptor. These systems exhibit high power-conversion efficiency of 6.64%. Also, the proposed all-polymer solar cells have even better performance than the control polymer-fullerene devices with phenyl-C 61 -butyric acid methyl ester (PCBM) as the electron acceptor (6.12%). More importantly, our all-polymer solar cells exhibit dramatically enhanced strength and flexibility compared withpolymer/PCBM devices, with 60- and 470-fold improvements in elongation at break and toughness, respectively. The superior mechanical properties of all-polymer solar cells afford greater tolerance to severe deformations than conventional polymer-fullerene solar cells, making them much better candidates for applications in flexible and portable devices.
- Keywords
- fullerene; polymer; Article; atomic force microscopy; cells; chemical structure; conductance; controlled study; electron; electron transport; radiation scattering; solar cell; Young modulus
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/13455
- DOI
- 10.1038/NCOMMS9547
- ISSN
- 2041-1723
- Article Type
- Article
- Files in This Item:
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