<P>A novel highly π-extended heteroacene with four symmetrically fused thiophene-ring units and solubilizing substituents at the terminal β-positions on the central ring, dithieno[2,3-<I>d</I>;2′,3′<I>-d<...
http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
https://www.riss.kr/link?id=A107659774
2012
-
SCOPUS,SCIE
학술저널
3464-3472(9쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>A novel highly π-extended heteroacene with four symmetrically fused thiophene-ring units and solubilizing substituents at the terminal β-positions on the central ring, dithieno[2,3-<I>d</I>;2′,3′<I>-d<...
<P>A novel highly π-extended heteroacene with four symmetrically fused thiophene-ring units and solubilizing substituents at the terminal β-positions on the central ring, dithieno[2,3-<I>d</I>;2′,3′<I>-d</I>′]benzo[1,2-<I>b</I>;4,5-<I>b</I>′]dithiophene (DTBDT) was synthesized via intramolecular electrophilic coupling reaction. The α-positions availability in the DTBDT motif enables the preparation of solution-processable DTBDT-based polymers such as <B>PDTBDT</B>, <B>PDTBDT-BT</B>, <B>PDTBDT-DTBT</B>, and <B>PDTBDT-DTDPP</B>. Even with its highly extended acene-like π-framework, all polymers show fairly good environmental stability of their highest occupied molecular orbitals (HOMOs) from −5.21 to −5.59 eV. In the course of our study to assess a profile of semiconductor properties, field-effect transistor performance of the four DTBDT-containing copolymers via solution-process is characterized, and <B>PDTBDT-DTDPP</B> exhibits the best electrical performance with a hole mobility of 1.70 × 10<SUP>–2</SUP> cm<SUP>2</SUP> V<SUP>–1</SUP> s<SUP>–1</SUP>. <B>PDTBDT-DTDPP</B> has a relatively smaller charge injection barrier for a hole from the gold electrodes and maintains good coplanarity of the polymer backbone, indicating the enhanced π–π stacking characteristic and charge carrier transport. The experimental results demonstrate that our molecular design strategy for air-stable, high-performance organic semiconductors is highly promising.</P><P><B>Graphic Abstract</B>
<IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/cmatex/2012/cmatex.2012.24.issue-17/cm301816t/production/images/medium/cm-2012-01816t_0010.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/cm301816t'>ACS Electronic Supporting Info</A></P>
Gigantic Electrostrain in Duplex Structured Alkaline Niobates