| Title: | A nanomesh scaffold for supramolecular nanowire optoelectronic devices |
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| Authors: | ID Zhang, Lei, ISIS & icFRC, University of Strasbourg & CNRS, Strasbourg, France (Author)
ID Pavlica, Egon, Univerza v Novi Gorici, Slovenija (Author)
ID Bratina, Gvido, Univerza v Novi Gorici, Slovenija (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: | Supramolecular organic nanowires are ideal nanostructures for optoelectronics because they exhibit both efficient exciton generation as a result of their high absorption coefficient and remarkable light sensitivity due to the low number of grain boundaries and high surface-to-volume ratio. To harvest photocurrent directly from supramolecular nanowires it is necessary to wire them up with nanoelectrodes that possess different work functions. However, devising strategies that can connect multiple nanowires at the same time has been challenging. Here, we report a general approach to simultaneously integrate hundreds of supramolecular nanowires of N,N′-dioctyl-3,4,9,10-perylenedicarboximide (PTCDI-C8) in a hexagonal nanomesh scaffold with asymmetric nanoelectrodes. Optimized PTCDI-C8 nanowire photovoltaic devices exhibit a signal-to-noise ratio approaching 107, a photoresponse time as fast as 10 ns and an external quantum efficiency >55%. This nanomesh scaffold can also be used to investigate the fundamental mechanism of photoelectrical conversion in other low-dimensional semiconducting nanostructures. |
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| Keywords: | fotodetektor, organski polprevodnik, fotoprevodnost, organski kristal, elektronske komponente, nanožice |
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| Year of publishing: | 2016 |
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| Number of pages: | 900-906 |
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| Numbering: | 2016, 11 |
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| PID: | 20.500.12556/RUNG-2647 |
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| COBISS.SI-ID: | 4524283 |
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| DOI: | 10.1038/nnano.2016.125 |
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| NUK URN: | URN:SI:UNG:REP:TT40WM6G |
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| Publication date in RUNG: | 05.10.2016 |
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| Views: | 6300 |
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| Downloads: | 0 |
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