Sonication-based liquid-phase exfoliation (LPE) is frequently used to exfoliate bulk materials and provides insights into the ease of exfoliation, nanosheet morphology, and the stability of materials in nanosheet form. Most importantly, unlike electrochemical exfoliation, it can be applied not only to metals and semiconductors but also to insulators.
2D-PRINTABLE partners studied exfoliation of layered materials (TaS2, Bi2SeO5, CrSBr, Na2Cu2TeO6) that have not been previously studied using LPE. To assess whether structural integrity of the nanosheets is preserved after exfoliation and to identify nanosheet size, thickness and morphology, a range of spectroscopic and microscopic techniques was employed (XRD, TEM, SAED, SEM, EDX, AFM), also providing important information for further processing.
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