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Achieving low-voltage operation in organic thin-film transistors (OTFTs) remains a primary challenge for wearable electronics. Here, low threshold voltage poly[2,5-(2-octyldodecyl)-3,6-diketopyrrolopyrrole-alt-5,5-(2,5-di(thien-2-yl)thieno [3,2-b]-thiophene)] (DPPDTT) OTFTs using ultrathin aluminium oxide (Al x O y ) as the gate dielectric are reported. Reducing the Al x O y th…
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Contact formation techniques with use of non-precious metal electrodes must be developed for low-cost manufacturing of organic devices. We report about the contact-doping effect of MoO 3 on charge transfer from the Fermi energy level of contact electrode to the highest occupied molecular orbital (HOMO) energy level of poly(3-hexylthiophene-2,5-diyl) (P3HT). When depositing MoO …
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The microstructure of organic small molecule (SM) layers in organic solar cells (OSCs) strongly influences device performance by impacting light absorption, charge transport, and recombination. We demonstrate that ellagic acid (EA), a naturally derived templating layer, induces substantial morphological and thus optoelectronic changes in the vacuum thermally evaporated (VTE) do…
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The performance of organic electronic devices is closely tied to their nanoscale donor-acceptor microstructure, yet quantifying these features remains challenging using conventional characterization tools. X-ray scattering and electron microscopy techniques provide high-fidelity structural information, but they are slow, expensive, and challenging to deploy in high-throughput o…
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Pyrene has emerged as a key scaffold in the design of organic semiconductors, distinguished by its inherent propensity for aggregation, ease of functionalization, and capacity for robust π-stacking interactions. However, the exploration and application of pyrene-based scaffolds in n-type semiconductors remain relatively scarce. To address this challenge, three novel pyrene-deri…
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ABSTRACT Perovskite solar cells (PSCs) have garnered considerable attention for their ability to deliver high-power conversion efficiencies through economical, solution-processed fabrication. However, reliance on toxic solvents such as N,N-dimethylformamide (DMF) and the antisolvent-dripping method poses challenges for large-scale manufacturing. This study presents an antisolve…
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