2020
DOI: 10.1126/sciadv.abc8847
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Meniscus-controlled printing of single-crystal interfaces showing extremely sharp switching transistor operation

Abstract: Meniscus, a curvature of droplet surface around solids, takes critical roles in solution-based thin-film processing. Extension of meniscus shape, and eventual uniform film growth, is strictly limited on highly lyophobic surfaces, although such surface should considerably improve switching characteristics. Here, we demonstrate a technique to control the solution meniscus, allowing to manufacture single-crystalline organic semiconductor (OSC) films on the highest lyophobic amorphous perfluoropolymer, Cytop. We u… Show more

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Cited by 60 publications
(60 citation statements)
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“…Note that passivation has usually been achieved through the use of alkylated silane-coupling agents for converting silica gate dielectric surfaces [27,[31][32][33][34][35] or inert amorphous polymer insulator surfaces. [16,29,30,36,37] By contrast, the present results indicate Figure 6. TLM evaluation of contact resistance for PDVT-10 TFTs with various device compositions.…”
Section: Intrinsic Sharp On/off Switching In Donor-acceptor Copolymer Tftscontrasting
confidence: 84%
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“…Note that passivation has usually been achieved through the use of alkylated silane-coupling agents for converting silica gate dielectric surfaces [27,[31][32][33][34][35] or inert amorphous polymer insulator surfaces. [16,29,30,36,37] By contrast, the present results indicate Figure 6. TLM evaluation of contact resistance for PDVT-10 TFTs with various device compositions.…”
Section: Intrinsic Sharp On/off Switching In Donor-acceptor Copolymer Tftscontrasting
confidence: 84%
“…In fact, BGBC‐type devices were utilized in most of the former reports on organic transistors showing extremely sharp on/off switching approaching the trap‐free limit. [ 15,16,37,39 ]…”
Section: Discussionmentioning
confidence: 99%
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“…
Similar to inorganic singlecrystal semiconducting materials (e.g., silicon), organic single-crystal semiconductors with nearly perfect spatial arrangement and extremely high chemical purity are endowed with improved physical properties over their polycrystalline counterparts in various electronic and optoelectronic devices. [4][5][6] Over the past two decades, key performance breakthrough has been achieved in organic field-effect transistors (OFETs), [7][8][9] optical waveguides, [10] and lasers [11] etc. by harnessing the unique properties of organic single crystals.
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mentioning
confidence: 99%
“…As a result, polycrystalline films rather than the OSCFs are usually attained through the conventional solution printing techniques. [4,6,8,16] Differing from direct growth of continuous and integral OSCFs, which is constrained by the strict requirements of sole nucleation and large-area epitaxial growth, a more feasible route to attain the OSCFs is to grow single crystal array at designated positions with identical morphology and structure. In practice, the uniform crystal array can be regarded as a kind of patterned OSCFs and is even more favorable for the integrated device application due to the elimination of the crosstalk between Organic single-crystal films (OSCFs) provide an unprecedented opportunity for the development of new-generation organic single-crystal electronics.…”
mentioning
confidence: 99%