Recent Advances on SEM-Based In Situ Multiphysical Characterization of Nanomaterials

Abstract

Functional nanomaterials possess exceptional mechanical, electrical, and optical properties which have significantly benefited their diverse applications to a variety of scientific and engineering problems. In order to fully understand their characteristics and further guide their synthesis and device application, the multiphysical properties of these nanomaterials need to be characterized accurately and efficiently. Among various experimental tools for nanomaterial characterization, scanning electron microscopy- (SEM-) based platforms provide merits of high imaging resolution, accuracy and stability, well-controlled testing conditions, and the compatibility with other high-resolution material characterization techniques (e.g., atomic force microscopy), thus, various SEM-enabled techniques have been well developed for characterizing the multiphysical properties of nanomaterials. In this review, we summarize existing SEM-based platforms for nanomaterial multiphysical (mechanical, electrical, and electromechanical) in situ characterization, outline critical experimental challenges for nanomaterial optical characterization in SEM, and discuss potential demands of the SEM-based platforms to characterizing multiphysical properties of the nanomaterials.

Synthesis, Characterization, and Biological Properties of Iron Oxide Nanoparticles Synthesized from Apis mellifera Honey

“…The physical properties of honey-mediated Fe 2 O 3 -NPs were analyzed by scanning electron microscopy (SEM). Real-time pictures of the samples, clarity at the nanometer level of 20 to 100 nm, and a broad traversing zone of nanoparticles are all provided by this methodology [ 61 ]. The SEM instrument JSM-6380 with a potential energy of 15 KV and magnification up to 20,000x was used to examine morphological properties (size and shape) of the synthesized Fe 2 O 3 -NPs.…”

A review of recent developments for the in situ/operando characterization of nanoporous materials

“…83,99 In principle, similar in situ sample holders as developed for TEM can be used in SEM. 100 In addition, SEM can also be coupled with a focused ion beam (FIB) cutting/sec-tioning to investigate the internal mesoscopic 3D structures of different compounds. 100,101 A FIB-SEM measurement can be classified in FIB-SEM processing, imaging analysis, and quan- titative 3D reconstruction.…”

“…100 In addition, SEM can also be coupled with a focused ion beam (FIB) cutting/sec-tioning to investigate the internal mesoscopic 3D structures of different compounds. 100,101 A FIB-SEM measurement can be classified in FIB-SEM processing, imaging analysis, and quan- titative 3D reconstruction. The specimen is sectioned/milled with FIB so that SEM images from the exposed cross-section can be recorded.…”

Experimental extraction of Young's modulus of gastric tissue with development of spherical, cylindrical, and crowned rollers contact theories

“…Single-cell stiffness is determined based on this deformation information. Finally, the results show that the stiffness of a cell decreases with increasing humidity [ 19 ]. Korayem et al Used an atomic force microscope to study the force applied to deform a DNA cell during the manipulation process.…”