Sequent spray deposition of secondary solvent for efficient polymer solar cells

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• 作者：Byung-Kwan Yu ; Doojin Vak ; Jang Jo ; Seok-In Na ; Seok-Soon Kim…
• 关键词：polymer solar cells ; organic solar cells ; roll ; to ; roll process ; spray process
• 刊名：Macromolecular Research
• 出版年：2015
• 出版时间：July 2015
• 年：2015
• 卷：23
• 期：7
• 页码：696-703
• 全文大小：662 KB
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• 作者单位：Byung-Kwan Yu (1)
  Doojin Vak (2)
  Jang Jo (3)
  Seok-In Na (4)
  Seok-Soon Kim (5)
  Yen-Sook Jung (1)
  Dong-Yu Kim (1)
  
  1. School of Materials Science and Engineering Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712, Korea
  2. Manufacturing Flagship, CSIRO, Clayton, Victoria, 3169, Australia
  3. LG Display Co., Ltd., Deogeun-ri, Wollong-myeon, Paju-si, Gyeonggi, 413-779, Korea
  4. Professional Graduate School of Flexible and Printable Electronics and Polymer Materials Fusion Research Center, Chonbuk National University, Jeonju-si, Jeonbuk, 561-756, Korea
  5. School of Materials Science and Chemical Engineering, Kunsan National University, Kunsan, Jeonbuk, 753-701, Korea
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Polymer Sciences
  Characterization and Evaluation of Materials
  Soft and Granular Matter, Complex Fluids and Microfluidics
  Nanochemistry
  Nanotec
  
• 出版者：The Polymer Society of Korea, co-published with Springer
• ISSN：2092-7673

文摘

The spray process is compatible with the roll-to-roll process, which has the highest productivity and the lowest costs among the developed processing techniques. In this study, we demonstrated a technique involving the spraying of a secondary solvent after the formation of an active layer, by using a spray process with a relatively lowboiling- point solution. With this technique, we obtained the much smoother surface topography and more ordered bulk heterojunction morphology through enhanced self-organization of the composite materials. Consequently, the device with additionally sprayed high-boiling-point solvent allowed to achieve fill factor (FF) and power conversion efficiency (PCE) values as high as 67% and 3.76%, respectively.