H2020Индивидуална стипендия2019–2021

TECh-MoDE · Nanoscale-enhanced Spectroscopies in Electrochemically-Gated Single-Molecule Devices

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2019-08-01 → 2021-09-30
Финансиране от ЕС: 174 806 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Молекулярната електроника изследва свойствата на отделни молекули, свързани между два електрода, чрез комбиниране на електрически ток и спектроскопия. Това помага да се разбере как молекулите се свързват с електродите, за да се подобрят бъдещите електронни устройства.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Nanoscale-enhanced Spectroscopies in Electrochemically-Gated Single-Molecule Devices

The molecular electronics field aims at miniaturising electronic devices employing molecules to surpass the space limitation of conventional silicon circuitry integration. Thus, a complete understanding of the physicochemical properties of any molecule targeted as an electronic component is a must since these properties define its functionalities. Gaining access to the characteristic length scale of a target molecule is crucial since it permits us to explore such properties that are inaccessible in ensemble experiments. Today, this is possible thanks to multiple platforms that allow the detection of individual molecules wired between two electrodes in fixed nanogaps. These platforms rely on the electrical detection of molecular junctions. Unfortunately, electrical current based detection methods do not carry any chemical information of the target molecule’s structural properties and for the interfacial interplay between the wired molecule and the way it binds to the electrodes. Molecule-electrode contact structural and chemical information is thus critical to tailor future molecular-based devices electrical properties. It is then essential to develop complementary and non-destructive single-molecule spectroscopic detection techniques to fill such a crucial gap in the molecular electronics field. Tip-Enhanced Raman Spectroscopy(TERS), have been developed to access the molecular fingerprint on a few scatterers in nanoconfined spaces and adsorbate (sub)monolayers. To overcome the described issues, the ground-breaking nature of this proposal was the development of a beyond the state-of-the-art platform working under ambient conditions, which allows the recording of electrical current and TER spectra under EC-control.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

To push forward Molecular Electronics, a complete understanding of the nanoscale molecule/electrode interface is a must, since the interactions, structure and electronic characteristics of such interfaces define their physicochemical properties, thus their functionalities. This knowhow will enable exploiting these interfaces as the building blocks for the next generation of high performance and sustainable electronic devices. With the aim to decipher the abovementioned big unknowns, TECh-MoDE will develop the first hybrid platform with spectro-electrochemical detection capabilities of individual molecules under ambient conditions: the EC-TERS/Blinking, which will be based in the communion of two platforms: first, the Scanning Tunneling Microscope Break-Junction will allow to capture the tunnelling current through an individual bridged molecule between two electrodes of Tunneling nanoscale gap, enabling the electrical signatures of a single-molecule electrical contact. Second, the TERS, a high ultrasensitive non-destructive spectroscopic method, will provide spectroscopic features of the trapped molecule under strict electrochemical control. The single-molecule nature of this new platform provides a detailed insight into the molecular junction structure by simultaneously capturing current flow and vibrational spectra during the spontaneous formation of a molecular junction. This state-of-the-art dual-platform will allow to study, for the first time, the evolution of spectro-electrochemical characteristics in a molecular junction. This novel platform will be then exploited to explore several key structural aspects that remain unknown during the formation of single-molecule electrical contacts: (1) the observed multiple contact configurations in most common covalent anchoring chemistry, (2) the structural richness in supramolecular junctions and (3) the electrochemical gating effects of single-molecule wires of redox (bio)molecules.

Оригинален текст от CORDIS (на английски).

Участници

MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV · MUNCHENКоординаторГермания