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Da Seul Yang, Kyung Hwan Kim, Min Ju Cho, Jung-Il Jin and Dong Hoon Choi Donor–acceptor alternating π-conjugated polymers containing Di(thiophen-2-yl)pyrene and 2,5-Bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione for organic thin-film transistors Journal of Polymer Science Part A: Polymer Chemistry 51

Article first published online: 5 JAN 2013 | DOI: 10.1002/pola.26518

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New poly(2,5-bis(2-octyldodecyl)-3-(5-(pyren-2-yl)thiophen-2-yl)-6-(thiophen-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione) (P(DTDPP-alt-(2,7)PY)) was successfully synthesized via Suzuki coupling reactions. An organic thin-film transistor fabricated using the newly synthesized P(DTDPP-alt-(2,7)PY) exhibited a maximum mobility of up to 0.23 cm2 V–1 s–1 (Ion/off ∼ 106) as a semiconductor material. In addition, the OPT devices made of P(DTDPP-alt-(2,7)PY) showed interesting photoinduced enhancement of drain current when irradiating with the excitation light whose intensity is very low.

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