Important points about electron microscopy (EM)
Category General
Difficulty Level Normal
Audience Level General
Description Microscopic characterization methods refer to scientific techniques Which allow determination of both composition and structure of a material. Optical microscopy, scanning probe microscopy and electron microscopy are known as microscopic techniques. This course illustrates how microscopic characterization techniques are used.
Difficulty Level Normal
Audience Level General
Description Microscopic characterization methods refer to scientific techniques Which allow determination of both composition and structure of a material. Optical microscopy, scanning probe microscopy and electron microscopy are known as microscopic techniques. This course illustrates how microscopic characterization techniques are used.
Overview
Microscopic methods play an essential role in nanomaterials characterization. Microscopic and X-ray based characterization of nanomaterials techniques are used for the determination of surface morphology and dispersion characteristics of nanomaterials. This course deals with details of these aspects, and will provide a fundamental understanding of morphological tools, such as instrumentation, sample preparation and different kinds of analyses, etc.
Booklet
Microscopic methods play an essential role in nanomaterials characterization. Microscopic and X-ray based characterization of nanomaterials techniques are used for the determination of surface morphology and dispersion characteristics of nanomaterials. This course deals with details of these aspects, and will provide a fundamental understanding of morphological tools, such as instrumentation, sample preparation and different kinds of analyses, etc.
Booklet
Description |
This lesson talks about black and white images obtained from EM. In order to present the magnification of an image, a defined scale has been used in the corner of an EM image. The size distribution of nanomaterials can be calculated using the images obtained from EM. |
Mental Challenge |
Based on the pros and cons of different imaging techniques, can we say that TEM is preferable than SEM? |
Quizzes and Activities |
Activity: Compare the electron scanning microscope with transmission electron microscope |
Further Reading Sources |
1. https://www.sciencedirect.com/topics/chemistry/electron-microscopy |
| Back-scattered electron imaging | 16:40 | |
| Scanning electron microscope imaging | 10:24 | |
| Important points about electron microscopy (EM) | 13:16 |
| Atomic Force Microscope (AFM) | 11:42 | |
| Imaging using atomic force | 10:41 | |
| Advantages and disadvantages of AFM microscope | 12:49 | |
| Semi-contact (tapping) mode | 11:01 | |
| Non-contact Mode | 17:26 | |
| MFM | 11:14 |