Material Behavior of Nanostructures

Teacher

Dr. Saubhagyalaxmi Behera

Category

Core Courses

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Course Name : Material Behavior of Nanostructures

Code(Credit) : CUTM 1406(3-1-0)

Course Objectives

  • To understand the influence of dimensionality of the object at nanoscale on their properties;
  • To study  size and shape controlled synthesis of nanomaterials and their future applications in industry.
  • To bring out the distinct properties like mechanical, magnetic,  thermal, electronic, optical, and photonic properties of of nanostructures.

Learning Outcomes

  • To familiarize about the various properties of nanostructures.
  • To bring out the differences between nano and macro structures.
  • To discuss applications and specific properties of nanomaterials.

Course Outline 

MODULE-I

Introduction

Peculiarities of nanostructured materials: Introduction,  Extended internal surface, Increasing of surface energy and tension,  Grain boundaries, Instability of three dimensional nanostructured materials due to grain growth, Size effects in nanostructured materials.

MODULE-II

Mechanical Properties

Mechanical properties of nanocrystalline metals and alloys, Inverse Hall Petch effect, Strain-rate sensitivity, Ceramics and composites. Types of indentation: Oliver & Pharr,  Vickers indentation process, Nano Indentation by Atomic Force Microscope , Young's modulus, Contact angle.

Practice-1

Strength vs ductility of steel bar

MODULE-III

Thermal Properties of Nanostructures-

Thermo electric materials (TEM): Concept of phonon, Thermal conductivity, Specific heat,  Exothermic & endothermic processes. Bulk TEM properties, Different types of TEM;  One dimensional TEM;  Composite TEM;  Applications.

Practice-2

Thermal conductivity measurement

MODULE-IV

Magnetic Properties,

Introduction of magnetic materials, basics of ferromagnetism – ferro magnetic resonance and relaxation,  Magnetic properties of bulk nanostructures,  Magnetic clusters, Dynamics of nanomagnets, Nanopore containment of magnetic particles,  Nano carbon ferromagnets, Ferrofluids.

Practice-3

Exploring magnetic nanoparticles with Diana Borca

Practice -4

B -H curve of ferromagnetic material

MODULE-V

Electronic Properties,

Energy bands and gaps in semiconductors, Fermi surfaces , Localized particle, Donors, Acceptors, Deep traps, Excitons, Mobility, Size dependent effects, Conduction electrons and dimensionality Fermi gas and density of states,  Semiconducting nano particles , Direct and reciprocal lattices of the fcc structure.

Practice-5

Determination of band gap energy of semiconductor.

MODULE-VI

Optical Properties

Optical properties , Photonic crystals, Defects in photonic crystals ,  Optical properties of semiconductors, Band edge energy, Band gap,  Dependence on nanocrystallins size, Quantum dots, Optical transitions,  Absorptions, Interband transitions.

Practice- 6

Explanation of surface plasmon resonance.

MODULE-VII

Luminescence Properties

Fluorescence/luminescence, Photoluminescence/fluorescence, Optically excited emission

Electroluminescence, Laser emission of quantum dot, Photo fragmentation and columbic explosion, Phonons in nanostructures, Luminescent quantum dots for biological labeling.

 Text books

  1. Introduction to Nano Technology by Charles. P. Poole Jr& Frank J. Owens. Wiley India     Ltd.
  2.  Solid State physics by Pillai, Wiley Eastern Ltd.

Reference Books:

  1. Processing & properties of structural naonmaterials ‐Leon L. Shaw (editor)
  2. Nanoscale materials -Liz Marzan and Kamat

Session Plan

Session 1

Peculiarities of nanostructured materials: Introduction

Link-1 https://youtu.be/qzPWTOdE6qk

Link-2 https://youtu.be/603X3H4vvKQ

Link-3 https://youtu.be/I3WccmbuVCc(PPT)

Session 2

Extended internal surface, Increasing of surface energy and tension

link-1 https://youtu.be/aPg7wv4Ifjg

link-2 https://youtu.be/70dOzvhn-8M

link-3 https://youtu.be/70dOzvhn-8M (PPT)

Session 3

Grain boundaries, Instability of three dimensional nanostructured materials due to grain growth, size effects in nanostructured materials.

Link.1-https://youtu.be/gdr6EjS5Qjw

Link.2-https://youtu.be/sKJUkFRVKA8

Session 4

Mechanical properties of nanocrystalline metals and alloys.

Link.1-https://youtu.be/G5z9KknF_s8

Link. 2 https://youtu.be/0qh2mPQ6-BE

Link 3 https://youtu.be/b6n0-WU6w3A

link 4 https://youtu.be/SNJc8b22pWw (slide share)

Session 5

Inverse Hall Petch effect, Strain-rate sensitivity.

link 1https://youtu.be/442doLwgyps

link 2 https://youtu.be/O74yipAuWcc

link 3 https://youtu.be/O_HP-r-DQBA    (PPT)

Session 6

Ceramics and composites, Types of indentation: Oliver & Pharr.

link 1 https://youtu.be/IPbwBOsKZ7E

Link 2 https://youtu.be/cSPfe77LIGw(PPT)

link 3 https://youtu.be/OP7icuszRBE

Session 7

Vickers indentation process, Nano indentation by Atomic Force Microscopy.

Link 1  https://youtu.be/vWFP9SQTqo4

Link 2 https://youtu.be/7Z90OZ7C2jI

Link  3 https://youtu.be/ksQT1W0cmHE

link 4  https://youtu.be/Y6oXptb0Wbw (Slide share)

Session 8

Young's modulus, Contact angle of nanomaterials.

link 1 https://youtu.be/TTxg9tjGokU

link 2 https://youtu.be/n7anCnzgC3s

link 3 https://youtu.be/TTxg9tjGokU (PPT)

Session 9

Practice-1  (2 hours)

Strength vs ductility of steel bar 

https://youtu.be/gPGgJHik4tE

Session 10

Thermo electric materials (TEM): Concept of phonon.

link 1https://youtu.be/733oKZyhxyE

link 2 https://youtu.be/wUrW_M9_6Lc

link 3 https://youtu.be/nlxQ6DRS6as (PPT) 

Session 11

Thermal conductivity, Specific heat of nanomaterials.

link 1 https://youtu.be/MbezcAjzhuw

Link 2 https://youtu.be/vfNY-Vo-etw

link 3 http://people.virginia.edu/~lz2n/mse209/Chapter19.pdf (PPT)

Session 12

Exothermic & endothermic processes. Bulk TEM Properties.

link 1 https://youtu.be/aF5RJ4e9hdk

link 2 https://youtu.be/Tmeb5MM-51U

link 3 https://www.slideshare.net/mille12a/endothermic-exothermic-pwpt

Session 13

Session 15

Practice-2 (2 hours)

Thermal conductivity measurement.

https://youtu.be/8WTRDbtQQMg

Session 16

Introduction of magnetic materials, Basics of ferromagnetism – ferro magnetic resonance and relaxation.

Link 1 https://youtu.be/xMsBkyk81Q4

Link 2https://youtu.be/sjDlJoCYXj8

Link 3 https://youtu.be/SGfj65khuNA

link 4 https://www.slideshare.net/patelnilay3/magnetic-materials-42183977

Session 17

Magnetic properties of bulk nanostructures, Magnetic clusters.

link 1 https://youtu.be/vvWx4KgOmGY

Link 2 https://youtu.be/4d2L6LhPN5A

Link 3 https://youtu.be/ecP6NQLdEWw

link 4 https://www.slideshare.net/randywesley5070/magnetic-nps

Session 19

Nano carbon ferromagnets, Ferrofluids .

Link 1 https://youtu.be/19nzPt62UPg

Link 2 https://youtu.be/D2j2YmPxZX0

Link 3 https://youtu.be/Hk_P6O_PR9w

Session 20

Practice-3 (2 hours)

Exploring magnetic nanoparticles with Diana Borca.

link. 1 https://youtu.be/4Dlt63N-Uuk

Session 21

Practice-4 (2hours)

B- H curve of ferromagnetic material.

link 1 https://youtu.be/TLcSqGwENhs

Session 22

Session 23

Localized particle, Donors, Acceptors, Deep traps, Excitons.

Link.1 https://youtu.be/Fogu4FwmYWg

Link 2 https://youtu.be/gvrB4iRRKm4

Session 24

Mobility, Size dependent effects, Conduction electrons and dimensionality,  Fermi gas and density of states.

Link.1 https://youtu.be/dsqbiIW9tEc

Link 2 https://youtu.be/pS4pRxXXLAo

link 3 https://slideplayer.com/slide/4976847/

Session 27

Practice-5 (2hours)

Determination of band gap energy of semiconductor.

link 1 https://youtu.be/h9QIwefSrrI

Session 28

Optical properties , Photonic crystals, Defects in photonic crystals.

Link 1 https://youtu.be/ZLgMyj4cQY8

Link 2 https://youtu.be/jFWVgNI6eGY

Link 3 https://youtu.be/6ekw9nuicww

link 4 https://www.slideshare.net/NAGURSHAREEFSHAIK1/photonic-crystals-79789780

Session 29

Optical properties of semiconductors, band edge energy, band gap

Link 1  https://youtu.be/2AgfpjFd5fs

Link 2   https://www.slideshare.net/NAGURSHAREEFSHAIK1/photonic-crystals-79789780

Session  30

Dependence on nanocrystallins size, Quantum dots,Optical transitions.

link 1 https://youtu.be/ayHfS_RCGaw

link 2 https://youtu.be/0EokkhdppgE

link 3  https://www.slideshare.net/meenu1190/quantum-dots-ppt

Session  32

Practice-6 (2hours)

Explanation of surface plasmon resonance.

link 1 https://youtu.be/sM-VI3alvAI

Session  33

Fluorescence/luminescence, Photoluminescence/fluorescence, Optically excited emission .

link 1   https://youtu.be/CcN8NnGGPhs

link 2 https://youtu.be/h7jRcvU6vek

link 3 https://youtu.be/z-zmp-GN_MQ

link 4 https://www.slideshare.net/Abhayjeetsingh5/photo-luminescence-63803216

Session  34

Electroluminescence, Laser emission of quantum dot, Photo fragmentation and columbic explosion.

link 1 https://youtu.be/RJ2xGFfrND0

link 2 https://youtu.be/9zCcViTl6Xc

link 3 https://youtu.be/8qTYergAQok

link 4 https://www.slideshare.net/9474778311/quantum-dot-lasers

Session  35

Phonons in nanostructures, Luminescent quantum dots for biological labeling .

link 1 https://youtu.be/iY0ulHZcnLA

link 2 https://youtu.be/lo2RTivBc6E   (PPT)

Session  36

Band gap Eg calculation from photoluminescence (PL) spectra.

link 1 https://youtu.be/GqivfoW32rg

link 2 https://www.slideshare.net/NuzhetNihaar/photoluminescence-101285659

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