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  • TITLE
  • DEDICATION
  • DECLARATION
  • CERTIFICATE
  • ACKNOWLEDGEMENT
  • ABSTRACT
  • PREFACE
  • PUBLICATIONS
  • CONTENTS
  • LIST OF TABLES
  • LIST OF FIGURES
  • 1.REVIEW OF THE ELECTRICAL, OPTICAL, STRUCTURAL AND SCHOTTKY DEVICE PROPERTIES IN PHTHALOCYANINES
  • 1.1 Introduction
  • 1.2 Electrical Studies
  • 1.3 Optical Studies
  • 1.4 Structural Studies
  • 1.5 Schottky Devices and their Properties
  • References
  • 2. INSTRUMENTS AND EXPERIMENTAL TECHNIQUES
  • 2.1 Introduction
  • 2.2 Methods of Preparation of Thin Films
  • 2.3 Thermal Evaporation Technique
  • 2.4 Effect of Residual gases
  • 2.5 Effect of Vapour Beam Intensity
  • 2.6 Effect of Substrate Surface
  • 2.7 Effect of Evaporation Rate
  • 2.8 Contamination from Vapour Source
  • 2.9 Purity of the Evaporating Materials
  • 2.10 Production of Vacuum
  • 2.11 Oil Sealed Rotary Pump
  • 2.12 Diffusion Pump
  • Fig.2.12.1 Schematic diagram of the cross section of a diffusion pump
  • 2.13 Vacuum Coating Unit
  • Fig. 2.13.1 Schematic diagram of a vacuum coating unit
  • Fig.2.13.2 Schematic representation of Pirani gauge
  • Fig.2.13.3 Schematic representation of Penning gauge
  • 2.14 Preparation of Films
  • 2.15 Substrate Cleaning
  • 2.16 Substrate Heater
  • Fig. 2.13.4 Photograph of the coating unit along with the accessories
  • 2.17 Sample Annealing
  • Fig.2.17.1 Block diagram of the temperature controller cum display.
  • 2.18 Thickness Measurement
  • 2.19 Conductivity Cell
  • Fig.2.19.1 Schematic diagram of the cross section of the conductivity cell
  • 2.20 Keithley Programmable Electrometer 617
  • Fig.2.20.1 Schematic diagram for measuring resistance on Keithley using ohms function
  • Fig.2.20.3 Photograph of the experimental setup for electrical conductivity measurements
  • 2.21 UV-Visible Spectrophotometer
  • Fig.2.21.2 Block diagram of the electronic circuitry of thespectrophotometer (Shimadzu 160A)
  • 2.22 X-ray Diffractometer
  • References
  • 3. ELECTRICAL STUDIES ON CdPc, InPcCI AND AlPcCI THIN FILMS
  • 3.1 Introduction
  • 3.2 Theory
  • 3.3 Experimental
  • 3.4 Results and Discussion
  • 3.5 Conclusion
  • References
  • 4. OPTICAL STUDIES ON CdPC, InPcCl AND AlPcCI THIN FILMS
  • 4.1 Introduction
  • 4.2 Theory
  • 4.3 Experimental
  • 4.4 Results and Discussion
  • 4.5 Conclusion
  • References.
  • 5. X-RAY DIFFRACTION STUDIES ON CdPc.InPcCI AND AlPcCI THIN FILMS
  • 5.1 Introduction
  • 5.2 Theory
  • 5.3 Experimental
  • 5.4 Results and Discussion
  • 5.5 Conclusion
  • References
  • 6. SCHOTTKY DIODES AND STUDIES ON THE DEVICE CHARACTERISTICS
  • 6.1 Introduction
  • 6.2 Theory
  • 6.3 Fabrication of Schottky diodes using CdPc, InPcCl and AlPcCl thin films
  • 6.4 Results and Discussion
  • 6.5 Conclusion
  • References
  • 7. SUMMARY AND FUTURE SCOPE