Strain Modulation in van der Waals Crystals Directly Exfoliated onto Piezoceramics─Application in Micropiezoreflectance Spectroscopy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43931485" target="_blank" >RIV/60461373:22310/24:43931485 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/full/10.1021/acsaelm.4c01227" target="_blank" >https://pubs.acs.org/doi/full/10.1021/acsaelm.4c01227</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsaelm.4c01227" target="_blank" >10.1021/acsaelm.4c01227</a>
Alternative languages
Result language
angličtina
Original language name
Strain Modulation in van der Waals Crystals Directly Exfoliated onto Piezoceramics─Application in Micropiezoreflectance Spectroscopy
Original language description
The van der Waals (vdW) crystals and heterostructures, known for many intriguing physical properties, have garnered significant interest in recent years. Developing effective optical methods to study their properties is still urgent for fundamental research as well as simple material characterization. Among these methods, modulation spectroscopy stands out, as it offers the advantage of easily obtaining information on direct optical transitions related to extended states while not being sensitive to defect-related states. In our work, we successfully applied piezoreflectance spectroscopy (strain modulation) to study vdW flakes and atomic-thick vdW layers with an approach that eliminates the need to attach these crystals to the piezoceramics with an adhesive. The strain variation in vdW flakes was achieved via direct exfoliation of crystal onto piezoceramic substrate and modulation of piezoceramic dimensions by an external voltage. The principle of operation of this approach is the electrostatic interaction between the vdW layer and the piezoceramic substrate, which in the nanoscale can be treated as a vdW interaction between the atoms of the vdW layer and the atoms of the piezoceramic substrate. This work provides an effective method to study direct optical transitions in exfoliated vdW layers and reveals the nature of the interaction between the vdW layer and the substrate. © 2024 The Authors. Published by American Chemical Society.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Applied Electronic Materials
ISSN
2637-6113
e-ISSN
2637-6113
Volume of the periodical
6
Issue of the periodical within the volume
11
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
7857-7864
UT code for WoS article
001343726300001
EID of the result in the Scopus database
2-s2.0-85207720812