20.500.12556/RUNG-3934-67fe406c-6835-17f7-0fbc-89eb2b2283fd
Self-Suspended Nanomesh Scaffold for Ultrafast Flexible Photodetectors Based on Organic Semiconducting Crystals
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.
nanostrukture
organski polprevodniki
fotonapetostne komponente
true
true
false
Angleški jezik
Ni določen
Delo ni kategorizirano
2018-05-22 10:30:46
2018-05-22 10:57:53
2023-06-09 03:25:31
0000-00-00 00:00:00
2018
0
0
7
30
2018
0000-00-00
Zaloznikova
NiDoloceno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
5153531
10.1002/adma.201801181
URN:SI:UNG:REP:SMFCKAGH
Univerza v Novi Gorici
0
1
0