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Palai, Akshaya K.,Lee, Jihee,Shin, Tae Joo,Kumar, Amit,Park, Seung-Un,Pyo, Seungmoon The Royal Society of Chemistry 2014 Chemical communications Vol.50 No.64
<P>Preparation and structural analysis of highly ordered single crystalline wires of a diketopyrrolopyrrole (DPP) molecular semiconductor grown through a solution process are reported, and the static/dynamic electrical response of an organic electronic device using the DPP semiconductor has been analyzed.</P> <P>Graphic Abstract</P><P>Preparation and structural analysis of highly ordered single crystalline wires of a diketopyrrolopyrrole (DPP) molecular semiconductor grown through a solution process are reported, and the static/dynamic electrical response of an organic electronic device using the DPP semiconductor has been analyzed. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c4cc02055c'> </P>
Laterally-Stacked, Solution-Processed Organic Microcrystal With Ambipolar Charge Transport Behavior
Shim, Hyunseok,Kumar, Amit,Cho, Hyejin,Yang, Dongmyung,Palai, Akshaya K.,Pyo, Seungmoon American Chemical Society 2014 ACS APPLIED MATERIALS & INTERFACES Vol.6 No.20
<P>We report the formation of laterally stacked ambipolar crystal wire for high-mobility organic field-effect transistors (OFETs), along with a simple logic circuit through a solution process. A soluble pentacene derivative, 6,13-bis(triisopropylsilylethynyl)pentacene (Tips-pentacene), and N,N′-dioctyl-3,4,9,10-perylenedicarboximide (PTCDI-C<SUB>8</SUB>) were used as p-type and n-type organic semiconductors, respectively. The laterally stacked ambipolar crystal wire is made up of Tips-pentacene and PTCDI-C<SUB>8</SUB> crystals in a structure of Tips-pentacene/PTCDI-C<SUB>8</SUB>/Tips-pentacene (TPT). The inner part of the crystal is made up of PTCDI-C<SUB>8</SUB>, and Tips-pentacene is present on both sides. These TPT crystals exhibit typical ambipolar charge transport behavior in organic electronic devices, which show very balanced hole and electron mobility as high as 0.23 cm<SUP>2</SUP>/V·s and 0.13 cm<SUP>2</SUP>/V·s, respectively. Static and dynamic operational stability of the device is investigated by measuring the device performance as a function of storage time and applying voltage pulse, respectively, and it shows good air stability. In addition, a simple logic circuit based on the TPT crystal wire has been fabricated, and the static and dynamic performance has been evaluated. The results indicate that the TPT crystals are potentially useful for miniaturized organic electronic devices.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/aamick/2014/aamick.2014.6.issue-20/am5044505/production/images/medium/am-2014-044505_0007.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/am5044505'>ACS Electronic Supporting Info</A></P>