| Title: | Self-Suspended Nanomesh Scaffold for Ultrafast Flexible Photodetectors Based on Organic Semiconducting Crystals |
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| Authors: | ID Bratina, Gvido, UNG (Author)
ID Pavlica, Egon, UNG (Author), et al. |
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| Files: |
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| Language: | English |
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| Work type: | Not categorized |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | Self-standing nanostructures are of fundamental interest in materials sci- ence and nanoscience and are widely used in (opto-)electronic and photonic devices as well as in micro-electromechanical systems. To date, large-area and self-standing nanoelectrode arrays assembled on flexible substrates
have not been reported. Here the fabrication of a hollow nanomesh scaffold on glass and plastic substrates with a large surface area over 1 mm2 and ultralow leakage current density (≈1–10 pA mm−2 @ 2 V) across the empty scaffold is demonstrated. Thanks to the continuous sub-micrometer space formed in between the nanomesh and the bottom electrode, highly crystalline and dendritic domains of 6,13-bis(triisopropylsilylethinyl)pentacene growing within the hollow cavity can be observed. The high degree of order at the supramolecular level leads to efficient charge and exciton transport; the pho- tovoltaic detector supported on flexible polyethylene terephthalate substrates exhibits an ultrafast photoresponse time as short as 8 ns and a signal-to- noise ratio approaching 105. Such a hollow scaffold holds great potential as a novel device architecture toward flexible (opto-)electronic applications based on self-assembled micro/nanocrystals. |
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| Keywords: | nanostrukture, organski polprevodniki, fotonapetostne komponente |
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| Publication version: | Version of Record |
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| Year of publishing: | 2018 |
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| Number of pages: | 7 |
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| Numbering: | 30 |
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| PID: | 20.500.12556/RUNG-3934-67fe406c-6835-17f7-0fbc-89eb2b2283fd |
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| COBISS.SI-ID: | 5153531 |
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| DOI: | 10.1002/adma.201801181 |
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| NUK URN: | URN:SI:UNG:REP:SMFCKAGH |
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| Publication date in RUNG: | 22.05.2018 |
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| Views: | 4380 |
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| Downloads: | 0 |
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