Carbon Thin Films from Plant‐Derived Precursors

Thin films of nanocrystalline diamond‐like carbon thin film are synthesized by the thermal flash vapor deposition technique using turpentine oil. Effect of applied voltage and substrate temperature on the formation of thin film of carbon is discussed. It is observed that at substrate temperature (750°C), semiconducting Nanocrystalline diamond‐like carbon thin films with prominent (111) phase and band gap 1.04 eV can be prepared by flash evaporation techniques in less than 3 minutes. XRD, Rocking Curve analysis, SEM and Raman studies were carried out to confirm the structure of film prepared by this method. Electrical conductivity and optical band gap analysis were done to find out the electrical properties and band gap of the film.

Keywords:

• nanodiamond
• turpentine oil
• crystalline nanodiamond‐like carbon
• thermal flash evaporation

One of us (GK) is thankful to Ministry of Non‐Conventional Energy to provide a fellowship to carry out this work. We are also thankful to Excel Instruments for providing the flash evaporation unit free of charge for carrying out this work.