Graphene and related materials hold great potential for technological applications such as electronics, sensors, and energy storage devices, among others. Thanks to their high surface sensitivity, these materials are an ideal platform to study the interplay between molecular assemblies at the nanoscale and macroscopic electrical phenomena.
Researchers within the Graphene Flagship designed a molecule that can reversibly undergo chemical transformations when illuminated with ultraviolet and visible light. This molecule –a photoswitchable spiropyran– can be then anchored to the surface of materials such as graphene or molybdenum disulfide, thus generating an atomically precise hybrid macroscopic superlattice. When illuminated, the whole supramolecular structure experiences a collective structural rearrangement, which could be directly visualized with a sub-nanometer resolution by scanning tunneling microscopy.
More importantly, this light-induced reorganization at the molecular level induces large changes in the macroscopic electrical properties of the hybrid devices. The molecules, together with the layers of graphene and related materials, can convert single-molecule events into a spatially homogeneous switching action that generates a macroscopic electrical response. This novel and versatile approach takes supramolecular electronics to the next level.
‘Thanks to this new approach, we can exploit the capacity of collective switching events occurring in superlattices of photochromic molecules assembled onto graphene and related materials to induce large scale and reversible modulation in the electrical properties of high-performance opto-electronic devices,’ explains Paolo Samorì, lead author of the paper. ‘This technology could find applications in the next generation of smart and portable electronics, with programmable properties,’ he adds.
Samorì also explains how this idea of tailoring molecular superlattices could generate a wide variety of new materials with tunable and responsive properties. ‘Dial your functions! You only need to carefully choose the right molecules, the thus-formed superlattice will allow to maximize the change in properties as a response to external inputs,’ he says.
Vittorio Pellegrini, researcher at IIT and Division Leader for Energy, Composites, and Production at the Graphene Flagship, highlights how the research is ‘unique in the way it combines graphene and other related materials with light-responsive chemical molecules. These macroscopic arrangements are promising platforms for optoelectronics.’ Pellegrini points out the outstanding potential of these new findings: ‘the molecular ultra-thin coating can be tailored just by synthesizing different molecules.’ Moreover, ‘this discovery will lead us to the development of devices, as the technique developed by Samorì and his team can be scaled up in reproducible manner,’ he added. Samorì agrees: ‘The limit in the scalability is the accessibility to ultra-flat and atomically precise graphene and related materials.’
These advances, made possible by the collaborative environment of the Graphene Flagship, could lead to promising applications in sensors, optoelectronics, and flexible devices. Researchers now dream of high-performance multifunctional hybrid devices under control of nature’s most abundant and powerful source of energy – light.
The Latest on: Supramolecular electronics
[google_news title=”” keyword=”supramolecular electronics” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Supramolecular electronics
- Salzer Electronics Share Priceon December 4, 2023 at 1:09 pm
Rights Jul 03, 1995-Jun 29, 1995 Rights ratio: 1 share for every 1 held at a price of Rs 40.0 Bonus Apr 03, 1995 May 03, 1995 Mar 24, 1995 Bonus Ratio: 1 share(s) for every 1 shares held ...
- Tongfang Guoxin Electronicson December 3, 2023 at 4:00 pm
Tongfang Guoxin Electronics Co., Ltd. is engaged in the electronic components industry. It focuses on resonator, oscillator and capacitor. Its business scope includes manufacturing and sales of ...
- The Data Storage of Tomorrow – Scientists Make Supramolecular Breakthroughon November 29, 2023 at 3:59 pm
A recent study published in the journal Angewandte Chemie details the work of a research team who have pioneered a method for creating supramolecular memristors, one of the key components in the ...
- TVS Electronics Share Priceon November 24, 2023 at 1:02 pm
TVS Electronics Ltd., incorporated in the year 1995, is a Small Cap company (having a market cap of Rs 634.58 Crore) operating in IT - Hardware sector. TVS Electronics Ltd. key Products/Revenue ...
- Supramolecular chemistry articles from across Nature Portfolioon November 21, 2023 at 4:00 pm
Supramolecular chemistry is the study of entities of greater complexity than individual molecules — assemblies of molecules that bond and organize through intermolecular interactions. The design ...
- An effective approach for preparing supramolecular polymers at high concentrationon November 20, 2023 at 4:00 pm
More information: Atsushi Isobe et al, A Coformer Approach for Supramolecular Polymerization at High Concentrations, Angewandte Chemie International Edition (2023). DOI: 10.1002/anie.202312516 ...
- A deep-sea fish inspired researchers to develop supramolecular light-driven machineryon November 16, 2023 at 4:00 pm
Chemists have developed a bioinspired supramolecular approach to convert photo-switchable molecules from their stable state into metastable one with low-energy red light. Their work enables fast ...
- How to Dry Out Your Wet Electronicson November 15, 2023 at 5:47 pm
If this has happened to you – or worse yet, if your phone has taken a brief dunk in the restroom – this tutorial shows how to quickly and thoroughly dry out your soggy electronics. Note: the following ...
- Exploring design rules for using supramolecular hydrogels to mimic the extracellular matrixon November 13, 2023 at 4:00 pm
"Supramolecular hydrogels consist of molecules ... But these rules are also very applicable to other fields, such as bio-electronics, an emerging research field in which Rijns herself will be ...
via Bing News