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Questions and Answers
What is the core of a nanowire primarily made of?
Which synthesis method does NOT control the structure of nanowires?
What does the shell of a nanowire typically consist of?
Which of the following is NOT a shape or morphology of nanowires?
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Which of the following materials can be used for the core of a nanowire?
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Which characteristic of E-beam lithography enhances its resolution?
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What is a common application of E-beam lithography?
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How small can the resolutions achieved by E-beam lithography be?
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Study Notes
Nanowire Structure
- Nanowires are characterized by their core, shell, surface, and interfaces.
- Cores can be made of metals, semiconductors, insulators, and conducting polymers.
- Shells and surfaces can be functionalized with various materials.
- Nanowires can have diverse morphologies, including straight, bent, branched, core-shell, and hollow structures.
Nanowire Synthesis
- Different synthesis methods offer control over nanowire structure.
- Common methods include vapor-liquid-solid (VLS) growth, solution-liquid-solid (SLS) growth, chemical vapor deposition (CVD), molecular beam epitaxy (MBE), and electrochemical deposition.
E-beam Lithography (EBL)
- A high-resolution patterning technique for microelectronics and nanotechnology.
- Uses a focused electron beam to expose a resist material.
- The resist material undergoes a chemical change upon exposure to the electron beam.
- The scanned electron beam creates a pattern in the resist material.
- EBL enables resolutions down to 10 nm or smaller.
- A mask is not needed because the pattern is directly written onto the substrate.
EBL Applications
- Fabrication of integrated circuits, transistors, and other semiconductor devices in microelectronics.
- Creation of nanostructures, such as nanowires, nanotubes, and nanoparticles in nanotechnology.
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Description
Test your knowledge on nanowire structures and synthesis methods in nanotechnology. This quiz covers the characteristics of nanowires, various synthesis techniques, and the application of E-beam lithography. Perfect for students and enthusiasts in the material science field.
