Differences between Powder, Pellet, and Thin Film Forms

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SUMMARY

The discussion focuses on the distinctions between powder, pellet, and thin film forms in materials science, particularly in the context of a project involving metal-oxide based transparent thin film transistors. Key differences include the physical state of the materials: powder is a loose aggregation of particles, pellets are compacted forms, and thin films are uniform layers deposited on substrates. The conversation highlights the importance of understanding the specific characteristics of these materials, such as whether they are single-crystal or polycrystalline, which is crucial for research and application in electronics.

PREREQUISITES
  • Understanding of materials science terminology
  • Familiarity with thin film deposition techniques
  • Knowledge of crystal structures (single-crystal vs. polycrystalline)
  • Basic principles of semiconductor physics
NEXT STEPS
  • Research "Thin Film Deposition Techniques" such as sputtering and chemical vapor deposition
  • Study "Single-Crystal vs. Polycrystalline Materials" to understand their properties and applications
  • Explore "Metal-Oxide Semiconductor Physics" for insights into transparent thin film transistors
  • Read "Materials Science and Engineering: An Introduction" by William D. Callister for foundational knowledge
USEFUL FOR

Electronics engineering students, materials scientists, and researchers involved in the design and fabrication of thin film transistors and related technologies will benefit from this discussion.

Viswanath
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I'm PhD research scholar, can anybody explain the difference between powder form, pellet form and thin film.
 
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Viswanath said:
I'm PhD research scholar, can anybody explain the difference between powder form, pellet form and thin film.

This is puzzling.

First of all, please note PF requirements that the thread title be descriptive.

Secondly, doesn't the NAME tells you already the difference? One is a "powder", the other is a "pallet", and the last one is a "thin film"! You never describe the criteria you are trying to study to seek the differences.

Thirdly, those description are also vague. You neglected to explain the nature of those material, i.e. is this a single-crystal power? Is the thin film polycrystalline or single-crystal, etc... etc.

These are the types of DETAILED description that a PhD research scholar should be aware of and be able to supply when seeking a discussion.

Zz.
 
Dear ZapperZ,
Basically, I'm an Electronics engineering student, but I joined as project fellow in Applied Physics department for the project " Design & fabrication of metal-oxide based transparent thin film transistor". So I'm not much aware of these concepts. Now I'm preparing SnO powder, but I don't have clarity why I'm preparing powder instead of thin film, just following supervisor instructions. Can you suggest any books to improve the concepts of this project.
 

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