Solid-state electrochemistry on the nanometer and atomic scales: the scanning probe microscopy approach

Strelcov, Evgheni; Yang, Sang Mo; Jesse, Stephen; Balke, Nina; Vasudevan, Rama K.; Kalinin, Sergei V.

doi:10.1039/c6nr01524g

Cited by 26 publications

(30 citation statements)

References 173 publications

(269 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent times, ions have attracted much attention because of the significant role they play in energy related devices, sensors, information processing, and neuromorphic systems . However, the current trend of all‐solid electrochemical devices requires a synergistic approach to the fulfillment of nanotechnology dreams with a deeper understanding and precise control of the nanoscale material properties . Although researchers demonstrated single‐atom devices by sophisticated nanotechnology, those are still at the research and development stage and are not yet available for real device manufacturing.…”

mentioning

confidence: 99%

Nanoarchitectonics for Controlling the Number of Dopant Atoms in Solid Electrolyte Nanodots

et al. 2018

View full text Add to dashboard Cite

Controlling movements of electrons and holes is the key task in developing today's highly sophisticated information society. As transistors reach their physical limits, the semiconductor industry is seeking the next alternative to sustain its economy and to unfold a new era of human civilization. In this context, a completely new information token, i.e., ions instead of electrons, is promising. The current trend in solid-state nanoionics for applications in energy storage, sensing, and brain-type information processing, requires the ability to control the properties of matter at the ultimate atomic scale. Here, a conceptually novel nanoarchitectonic strategy is proposed for controlling the number of dopant atoms in a solid electrolyte to obtain discrete electrical properties. Using α-Ag S nanodots with a finite number of nonstoichiometry excess dopants as a model system, a theory matched with experiments is presented that reveals the role of physical parameters, namely, the separation between electrochemical energy levels and the cohesive energy, underlying atomic-scale manipulation of dopants in nanodots. This strategy can be applied to different nanoscale materials as their properties strongly depend on the number of doping atoms/ions, and has the potential to create a new paradigm based on controlled single atom/ion transfer.

show abstract

mentioning

confidence: 99%

Nanoarchitectonics for Controlling the Number of Dopant Atoms in Solid Electrolyte Nanodots

et al. 2018

View full text Add to dashboard Cite

show abstract

“…1 ,f proves that we can induce a local change in the conductivity of the layer when the tip is scanned with a negative polarity, which we relate to the presence of mobile Li ions in the LMO film. This effect, which has been already shown for other mixed ionic–electronic conductors, represents an interesting starting point to obtain local electrochemical information from the sample using C-AFM [ 6 ]. Indeed, the biased tip induces a strong electric field (localized under the tip) inside the material, thus triggering a field-induced ionic migration of the Li ions which, if mobile, start to accumulate at the tip–sample interface.…”

Section: Resultsmentioning

confidence: 59%

“…This puts the outcome of our work in context of a wide range of applications. These pending problems pose severe challenges for the physical characterization of battery materials such as the local correlation between a nanoscale stimulus and the resulting dynamically evolving material response [ 6 ].…”

Section: Resultsmentioning

confidence: 99%

“…1 shows the topography and current distribution map when performing such measurements in the case of the electrodeposited LMO. This basic concept was extended with the development of various scanning probe microscopy (SPM) techniques [ 8 – 12 ] dedicated to probe ionic dynamics such as the observation of motion of ions in mixed ionic–electronic conductors using the electrical current sensed by the AFM tip [ 6 ].…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Nanoscale electrochemical response of lithium-ion cathodes: a combined study using C-AFM and SIMS

Beeck¹,

Labyedh²,

Sepúlveda³

et al. 2018

Beilstein J. Nanotechnol.

View full text Add to dashboard Cite

The continuous demand for improved performance in energy storage is driving the evolution of Li-ion battery technology toward emerging battery architectures such as 3D all-solid-state microbatteries (ASB). Being based on solid-state ionic processes in thin films, these new energy storage devices require adequate materials analysis techniques to study ionic and electronic phenomena. This is key to facilitate their commercial introduction. For example, in the case of cathode materials, structural, electrical and chemical information must be probed at the nanoscale and in the same area, to identify the ionic processes occurring inside each individual layer and understand the impact on the entire battery cell. In this work, we pursue this objective by using two well established nanoscale analysis techniques namely conductive atomic force microscopy (C-AFM) and secondary ion mass spectrometry (SIMS). We present a platform to study Li-ion composites with nanometer resolution that allows one to sense a multitude of key characteristics including structural, electrical and chemical information. First, we demonstrate the capability of a biased AFM tip to perform field-induced ionic migration in thin (cathode) films and its diagnosis through the observation of the local resistance change. The latter is ascribed to the internal rearrangement of Li-ions under the effect of a strong and localized electric field. Second, the combination of C-AFM and SIMS is used to correlate electrical conductivity and local chemistry in different cathodes for application in ASB. Finally, a promising starting point towards quantitative electrochemical information starting from C-AFM is indicated.

show abstract

“…In situ IVz spectroscopy (i.e., local I–V and Δ z–V measurements) was introduced to study irreversible processes, for which the basic ESM method was found to be insufficient . This technique has been widely utilized in analyses of irreversible electrochemical processes in lithium‐ion conducting glass ceramic (LICGC) with negligible electronic conductance .…”

Section: Energy Storage Devicesmentioning

confidence: 99%

Functional Scanning Force Microscopy for Energy Nanodevices

et al. 2018

View full text Add to dashboard Cite

Energy nanodevices, including energy conversion and energy storage devices, have become a major cross-disciplinary field in recent years. These devices feature long-range electron and ion transport coupled with chemical transformation, which call for novel characterization tools to understand device operation mechanisms. In this context, recent developments in functional scanning force microscopy techniques and their application in thin-film photovoltaic devices and lithium batteries are reviewed. The advantages of scanning force microscopy, such as high spatial resolution, multimodal imaging, and the possibility of in situ and in operando imaging, are emphasized. The survey indicates that functional scanning force microscopy is making significant contributions in understanding materials and interfaces in energy nanodevices.

show abstract

Solid-state electrochemistry on the nanometer and atomic scales: the scanning probe microscopy approach

Cited by 26 publications

References 173 publications

Nanoarchitectonics for Controlling the Number of Dopant Atoms in Solid Electrolyte Nanodots

Nanoarchitectonics for Controlling the Number of Dopant Atoms in Solid Electrolyte Nanodots

Nanoscale electrochemical response of lithium-ion cathodes: a combined study using C-AFM and SIMS

Functional Scanning Force Microscopy for Energy Nanodevices

Contact Info

Product

Resources

About