<P>Recognizing the importance of molecular coplanarity and with the aim of developing new, ideal strong acceptor-building units in semiconducting polymers for high-performance organic electronics, herein we present a simplified single-step synth...
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https://www.riss.kr/link?id=A107489336
2014
-
SCOPUS,SCIE
학술저널
4933-4942(10쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>Recognizing the importance of molecular coplanarity and with the aim of developing new, ideal strong acceptor-building units in semiconducting polymers for high-performance organic electronics, herein we present a simplified single-step synth...
<P>Recognizing the importance of molecular coplanarity and with the aim of developing new, ideal strong acceptor-building units in semiconducting polymers for high-performance organic electronics, herein we present a simplified single-step synthesis of novel vinylene- and acetylene-linked bis-benzothiadiazole (<B>VBBT</B> and <B>ABBT</B>) monomers with enlarged planarity relative to a conventionally used acceptor, benzothiadiazole (BT). Along these lines, four polymers (<B>PDPP-VBBT</B>, <B>PDPP-ABBT</B>, <B>PIID-VBBT</B>, and <B>PIID-ABBT</B>) incorporating either <B>VBBT</B> or <B>ABBT</B> moieties are synthesized by copolymerizing with centro-symmetric ketopyrrole cores, such as diketopyrrolopyrrole (DPP) and isoindigo (IID), and their electronic, physical, and transistor properties are studied. These polymers show relatively balanced ambipolar transport, and <B>PDPP-VBBT</B> yields hole and electron mobilities as high as 0.32 and 0.13 cm<SUP>2</SUP> V<SUP>–1</SUP> s<SUP>–1</SUP>, respectively. Interestingly, the acetylenic linkages lead to enhanced electron transportation in ketopyrrole-based polymers, showing a decreased threshold voltage and inverting voltage in the transistor and inverter devices, respectively. The IID-based BBT polymers exhibit the inversion of the dominant polarity depending on the type of unsaturated carbon bridge. Owing to their strong electron-accepting ability and their highly π-extended and planar structures, <B>VBBT</B> and <B>ABBT</B> monomers should be extended to the rational design of high-performance polymers in the field of organic electronics.</P><P><B>Graphic Abstract</B>
<IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/cmatex/2014/cmatex.2014.26.issue-17/cm500800u/production/images/medium/cm-2014-00800u_0008.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/cm500800u'>ACS Electronic Supporting Info</A></P>
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