<P><B>Abstract</B></P><P>A study of the organic semiconductor F8TBT is presented, directly comparing a conventional form (F8TBT‐out) with a form with varied alkyl side‐chain position (F8TBT‐in), in terms...
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https://www.riss.kr/link?id=A107685616
2013
-
SCOPUS,SCIE
학술저널
967-974(8쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P><B>Abstract</B></P><P>A study of the organic semiconductor F8TBT is presented, directly comparing a conventional form (F8TBT‐out) with a form with varied alkyl side‐chain position (F8TBT‐in), in terms...
<P><B>Abstract</B></P><P>A study of the organic semiconductor F8TBT is presented, directly comparing a conventional form (F8TBT‐out) with a form with varied alkyl side‐chain position (F8TBT‐in), in terms of optical properties and device performance in light‐emitting‐diodes (LEDs). Computational simulations of the side‐chain position with respect to the TBT unit reveal geometrical differences between F8TBT‐out and F8TBT‐in. π–π conjugation on the backbone of F8TBT‐in is interrupted by a distortion of the benzothiadiazole ring, leading to a blue‐shift of the absorption spectrum and increased photoluminescence quantum efficiency. Both conventional and hybrid LEDs demonstrate that devices with F8TBT‐in show improved performance, as compared to F8TBT‐out, illustrating how tuning the optoelectronic properties of conjugated polymers by varying the placement of side chains has an important role in device optimization.</P>