Self-Suspended Nanomesh Scaffold for Ultrafast Flexible Photodetectors Based on Organic Semiconducting Crystals

Advanced Materials
Lei ZhangPaolo Samorì

Abstract

Self-standing nanostructures are of fundamental interest in materials science 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 photovoltaic 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.

References

Aug 3, 2001·Nature·F J Meyer zu HeringdorfR M Tromp
Sep 20, 2001·Journal of the American Chemical Society·J E AnthonyS R Parkin
Dec 15, 2006·Nature·Alejandro L BrisenoZhenan Bao
Jan 14, 2010·Accounts of Chemical Research·Rongjin LiDaoben Zhu
Jan 15, 2010·Chemical Reviews·Ana Claudia AriasAlberto Salleo
Apr 22, 2010·Journal of the American Chemical Society·Liqiang LiLifeng Chi
Aug 5, 2010·Journal of the American Chemical Society·Yajie ZhangAlejandro L Briseno
May 17, 2011·Journal of the American Chemical Society·Rohan J KumarAndrew B Holmes
May 16, 2013·Nature Communications·Helena AlvesErmelinda S Maçôas
Aug 14, 2013·Advanced Materials·Bregt VerreetBarry P Rand
Sep 10, 2014·Chemical Society Reviews·Katherine A Mazzio, Christine K Luscombe
May 21, 2015·Journal of the American Chemical Society·Rui M PintoHelena Alves
Jul 28, 2016·Nature Nanotechnology·Lei ZhangPaolo Samorì
Nov 26, 2016·Advanced Materials·Kyung Sun ParkMyung Mo Sung
Apr 11, 2017·Nano Letters·Michael A FusellaBarry P Rand
Aug 19, 2017·Science·Xiangnan SunLuis E Hueso
Aug 26, 2017·Journal of the American Chemical Society·Lei ZhangPaolo Samorì
Oct 13, 2017·Advanced Materials·Fangxu YangWenping Hu
Nov 3, 2017·The Journal of Physical Chemistry Letters·Sascha UllbrichKoen Vandewal
Dec 1, 2017·Chemical Society Reviews·Chengliang WangWenping Hu
Jan 18, 2018·Nature·Quinn BurlingameStephen R Forrest

❮ Previous
Next ❯

Citations

Apr 4, 2019·Advanced Materials·Yifan YaoPaolo Samorì
Jul 17, 2019·Nature Nanotechnology·Feichi ZhouYang Chai

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.