- 标题
- 摘要
- 关键词
- 实验方案
- 产品
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44.2: <i>Invited Paper:</i> Printed Polymer TFTs Towards Low-Cost Backplane Production
摘要： We present Merck’s new formulation and material developments enabling high-volume and high-throughput printing techniques to be used for cost-effective electronic circuitry and backplane production. Performance at TFT array level in excess of 2 cm2/Vs, comparable to spin coating is demonstrated at Gen1 scale and 50 ppi resolution, using a hybrid combination of conventional lithographic steps and direct gravure printing.
关键词： active-matrix backplane,Organic semiconductors,gravure,printed thin-film transistors
更新于2025-09-23 15:22:29
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Sol–Gel-Processed Organic–Inorganic Hybrid for Flexible Conductive Substrates Based on Gravure-Printed Silver Nanowires and Graphene
摘要： In this study, an organic–inorganic (O–I) nanohybrid obtained by incorporating an alkoxysilane-functionalized amphiphilic polymer precursor into a SiO2–TiO2 hybrid network was successfully utilized as a buffer layer to fabricate a flexible, transparent, and stable conductive substrate for solution-processed silver nanowires (AgNWs) and graphene under ambient conditions. The resulting O–I nanohybrid sol (denoted as AGPTi) provided a transmittance of the spin-coated AgNWs on an AGPTi-coated glass of 99.4% and high adhesion strength after a 3M tape test, with no visible changes in the AgNWs. In addition, AGPTi acted as a highly functional buffer layer, absorbing the applied pressure between the conductive materials, AgNWs and graphene, and rigid substrate, leading to a significant reduction in sheet resistance. Furthermore, gravure-printed AgNWs and graphene on the AGPTi-based flexible substrate had uniform line widths of 490 ± 15 and 470 ± 12 μm, with 1000-cycle bending durabilities, respectively.
关键词： gravure printing,flexible electronics,nanomaterials,conductive substrate
更新于2025-09-19 17:15:36
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Simultaneous reduction and surface functionalization of graphene oxide for highly conductive and water dispersible graphene derivatives
摘要： A simple and effective preparation method for the simultaneous reduction and functionalization of graphene oxide (rGO) by 2,4-diamino benzene sulfonic acid has been developed. The derivatives exhibit excellent conductivity and high dispersibility in various solvents. The successful preparation of rGO and the presence of the sulfonated aromatic diamine on rGO surface has been confirmed by infrared and X-ray photoelectron spectroscopy, while, the analysis by micro-Raman spectroscopy indicated that the reduction/functionalization alters the lattice structure of GO by the increment the defect density when the 2,4-diamino benzene sulfonic acid is used. Moreover, the study of the dried products by X-ray diffraction spectroscopy suggested the turbostratic restacking of the exfoliated rGO into graphite-like nanostructures. The obtained derivative of simultaneous reduction and functionalization of GO was used for the preparation of highly conductive water-based gravure ink, which in turn, was successfully applied in printing on various flexible substrates, demonstrating its great potentiality in graphene-based flexible and printed electronics applications.
关键词： Conductive inks,Printed electronics,Surface functionalization,Gravure,Reduced graphene oxide
更新于2025-09-09 09:28:46