How to choose a microscope according to research needs
1. Resolution requirement:
If atomic or near atomic resolution is required, transmission electron microscopy is the only option; Scanning electron microscopy is more suitable for surface morphology at the nanometer to micrometer scale; For structures above the micrometer level, optical microscopes often meet the requirements. For the field of material analysis, Jinjian Laboratory provides various professional testing equipment including TEM, SEM, etc. It can provide customized testing plans according to the specific needs of customers and meet their diverse needs.
2. Sample characteristics:
Consider the conductivity, thickness, stability, etc. of the sample. Biological samples may require special freezing or sectioning preparation; Non conductive samples require special treatment in electron microscopes; Observation of live samples is more suitable for optical microscopes.
3. Analysis type:
The instruments required for simple morphology observation, composition analysis, and crystal structure analysis are different. Modern electron microscopes often integrate multiple detectors, which can simultaneously obtain morphology, composition, and structural information.
4. Budget and Time:
Transmission electron microscopy has the highest cost and longer sample preparation time; Followed by scanning electron microscopy; Optical
microscopes are the most economical and efficient.
The development trend of microscope technology
With the advancement of technology, microscope technology is developing towards higher resolution, more integrated functions, and greater intelligence. The resolution of transmission electron microscopy has enabled direct imaging of individual atoms, making it possible to study point defects. The resolution of scanning electron microscopy is also constantly improving, while integrating more analytical functions. In situ technology is another important development direction, which enables researchers to observe the changes in samples in real time under simulated environmental conditions (such as heating, cooling, stretching, electrification, etc.), providing a new perspective for understanding material behavior.
