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  • TITLE
  • CERTIFICATE
  • DECLARATION
  • ACKNOWLEDGEMENT
  • CONTENTS
  • PREFACE
  • 1. NANO-PHASE REGIME
  • 1.1 Introduction
  • 1.2 Realm of Neglected Dimension
  • Fig. 1.1. Schematic diagram of the range of fine particle systems encountered
  • 1.3 The terminology
  • 1.4 Experimental methodology
  • 1.4.1 Preparation techniques
  • 1.4.2 Characterization techniques
  • 1.5 Classification
  • 1.6 Unique properties of clusters
  • 1.7 Present status
  • 1.8 Applications of cluster properties
  • 1.9 Scope
  • 1.10 Present Study
  • 1.11 Future
  • 1.12 References
  • 2. EXPERIMENTAL TECHNIQUES
  • 2.1 Introduction
  • 2.2 Methods of preparation of nano-particles
  • 2.3 Laser Raman spectroscopy
  • 2.4 X-ray diffraction analysis
  • 2.5 Conductivity measurements
  • 2.5.1 Measurement of dc conductivity
  • 2.5.1.1 Experimental setup
  • 2.5.2 Measurement of dielectric constant and ac conductivity
  • 2.6 Ultrasonic measurements
  • 2.6.1 Velocity measurements
  • 2.6.1.1 Pulse-echo-overlap technique
  • Fig.2.2. Block diagram of pulse-echo-overlap system
  • 2.6.2 Attenuation measurements
  • 2.7 References
  • 3. LASER RAMAN STUDY OF NANO-PARTICLES
  • 3.1 Introduction
  • 3.2 Present work
  • 3.3 Experimental
  • 3.3.1 Preparation of nano-particles
  • 3.3.2 X-ray diffraction analysis
  • 3.3.3 Recording of laser Raman spectra
  • 3.4 Results and discussion
  • 3.4.1 Cadmium sulphide
  • 3.4.2 Zinc sulphide
  • 3.4.3 Silver iodide
  • 3.4.4 Mercuric iodide
  • 3.5 Conclusion
  • 3.6 References
  • 4. DC CONDUCTIVITY AND DIELECTRIC PROPERTIES OF NANO PARTICLES OF CdS AND ZnS
  • 4.1 Introduction
  • 4.2 Experimental
  • 4.2.1 Sample preparation
  • 4.2.2 Conductivity measurements
  • 4.3 Results
  • 4.4 Discussion
  • 4.5 Conclusion
  • 4.6 References
  • 5. DC CONDUCTIVITY AND DIELECTRIC PROPERTIES OF NANO PARTICLES OF P-1 AND HP-1
  • 5.1 Introduction
  • 5.2. Experimental
  • 5.3 Results
  • 5.3.1 Silver iodide
  • 5.3.2 Mercuric iodide
  • 5.4 Discussion
  • 5.4.1 Silver iodide
  • 5.4.2 Mercuric iodide
  • 5.5 Conclusion
  • 5.6 References
  • 6. DC CONDUCTIVITY AND DIELECTRIC PROPERTIES OF COMPOSITE PELLETS OF NANO-PARTICLES
  • 6.1 Introduction
  • 6.2 Experimental
  • 6.3 Results
  • 6.4 Discussion
  • 6.5. Conclusion
  • 6.6 References
  • 7. ULTRASONIC INVESTIGATIONS IN SUSPENSIONS OF NANO-PARTICLES
  • 7.1 Introduction
  • 7.2 Theory
  • 7.3 Determination of compressibility
  • 7.3.1 Experimental
  • 7.3.2 Results and discussions
  • 7.4 Study of viscous-interaction
  • 7.4.1 Experimental
  • 7.4.2 Results and discussion
  • 7.5 Conclusion
  • 7.6 References
  • 8. ELASTIC PROPERTIES OF CONSOLIDATED NANO-PARTICLES
  • 8.1 Introduction
  • 8.2 Relations for elastic constants
  • 8.3 Experimental
  • 8.4 Results and discussion
  • 8.5. Conclusion
  • 8.6 References