Polymer Photovoltaics: Materials, Physics, and Device Engineering
CHAPTER 2: New Polymer Donors for Polymer Solar Cells
Published:08 Sep 2015
Special Collection: 2015 ebook collection , 2011-2015 materials and nanoscience subject collectionSeries: Polymer Chemistry Series
L. Ye, S. Li, and J. Hou, in Polymer Photovoltaics: Materials, Physics, and Device Engineering, ed. F. Huang, H. Yip, and Y. Cao, The Royal Society of Chemistry, 2015, pp. 32-77.
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Conjugated polymers have been regarded as promising candidates in organic photovoltaics owing to the outstanding electronic, optical and mechanical flexible properties. In this chapter, first, we summarize and discuss the requirements and design strategies of donor polymers in polymer solar cells (PSCs). Second, the design concepts and representative donor–acceptor (D–A) copolymer donors based on six types of donor building blocks are discussed. Notably, the blooming developments of novel two-dimensional conjugated polymer donors are emphasized. Third, the design considerations and examples of novel terpolymer donors are introduced. Finally, we summarize the future directions and approaches to developing higher performance donor polymers for photovoltaic applications.