Fundamentals of Nanoscience – 4BPHE3C Model Question

Department of Physics - Dr.Zahir Husain College, Ilyangudi.

Fundamentals of Nanoscience – 4BPHE3C

Time: 3 Hours                                                                                 Max Marks: 75

   Part – A                     (10 x 2 = 20)

Answer All the Questions

1. Define Nanotechnology
2. How surface to volume ratio is affected by the size of nanoparticles.
3. Define CNT’s.
4. Give any two applications of CNT’s.

5.    Define the top down approach.

6.    Write the advantage of CVD method.    

7.    List out advantages of Scanning tunneling microscopy.

8.    State the fundamental principle of transmission electron microscopy.

9.   Give the advantage of blue ray disk over ordinary compact disk.

10.  List any two applications of nanoparticles.

   Part – B                     (5 x 5 = 25)

Answer All the Questions

11.  Write note on nanomaterials.

(OR)

       What are nanowires? List out their properties.

12. Describe the difference between SWCNT and MWCNT.

(OR)

Describe the plasma arc discharge synthesis technique for production of CNT.

13. Explain the lithography method for nanomaterial synthesis.

     (OR)

            Write note on self assembly method.

     

14.  Describe the instrumentation of scanning probe microscopy.

(OR)

            Explain the working of AFM.

       15. Compare various types of optical memories.

                                                                                 (OR)

           

            Briefly describe nanomaterial applications in biomedical field.

   Part – C                     (3 x 10 = 30)

Answer any three Questions

16. Describe various methods of nanomaterial synthesis.

17. Describe the types of carbon nano tubes.

18. Describe the sol-gel method for nanomaterial synthesis.

19. Explain the principle and working of STM.

20. Write an essay on nanolayer applications.

Fundamentals of Nanoscience - I Internal Test

Part A - 5 x 2 = 10

1. List out various morphologies of 1D Nano Structures.
2. Why nanomaterial .properties are different from the bulk.
3. Write not on effect of size reduction on melting point.
4. List out effects of size reduction on magnetic properties of materials.
5. Give any two applications of nanocomposites.

Part B - 2 x 5 = 10

1. Briefly describe various types and morphologies of nanomaterials.
2. Write note on Quantum Dots.

Part C - 2 x 10 = 20

1. Write an essay on effect of size reduction on material properties.
2. Describe various nano synthesis methods. .

Fundamentals of Nanoscience - 4BPHE3C - Syllabus

III YEAR – VI SEMESTER

COURSE CODE: 4BPHE3C

ELECTIVE COURSE III (C) – FUNDAMENTALS OF NANOSCIENCE

Unit I              Introduction

Introduction to Nanotechnology – Background and definition of Nanotechnology – Nano materials – Size Dependence.

Types: Nanowires, Nanotubes, Quantum Dots, Nanocomposites – Properties – Ideas about Nano materials synthesis.

Unit II             Carbon Nano Tubes (CNT)

Introduction to CNT – SWNT – MWNT – Properties. CNT based Nano objects- Applications.

Unit III           Fabrication

Fabrication methods – Top down processes – Milling, lithographics, Machining process. Bottom–Up process – MBE and MOVPE, liquid phase methods, colloidal and sol – gel methods – Self Assembly

Unit IV           Characterization

Scanning Probe Microscopy – Principle of operation – Instrumentation – Scanning Tunneling Microscopy – STM probe construction and measurement. 

Atomic Force Microscopy – Instrumentation and Analysis – Tunneling Electron Microscopy– operation and measurement

Unit V             Nano devices and Applications

             

Optical memories, Nano materials applications in magnetism – in electronics. Sensors – in Biomedical field – in optics – Nano layer applications – Nano particle applications

Reference

1.        Hand book of Nanotechnology – Bharat Bhushan.

2.        Nano technology and Nano electronics – W. R. Fahrner (Editor).

3.        Materials Science – P. Mani, G. Ranganath, R. N. Jayaprakash.

4.        Nanotechnology – Mark Ratner, Daniel Ratner.

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