1. Heilmeier, G. H. and G. Warfield (1963). "Photoconductivity in Metal‐Free Phthalocyanine Single Crystals." The Journal of Chemical Physics, Vol. 38, No. 4, pp. 897-901.
2. Hussein, M. T., K. A. Aadim and E. K. Hassan (2016). "Structural and surface morphology analysis of copper phthalocyanine thin film prepared by pulsed laser deposition and thermal evaporation techniques." Advances in Materials Physics and Chemistry, Vol. 6, No. 04, pp. 85.
3. Khan, Z. R., M. Zulfequar and M. S. Khan (2010). "Optical and structural properties of thermally evaporated cadmium sulphide thin films on silicon (1 0 0) wafers." Materials Science and Engineering: B, Vol. 174, No. 1-3, pp. 145-149.
4. Markova-Deneva, I. (2010). "Infrared spectroscopy investigation of metallic nanoparticles based on copper, cobalt, and nickel synthesized through borohydride reduction method." Journal of the University of Chemical Technology and Metallurgy, Vol. 45, No. 4, pp. 351-378.
5. Saleem, M., L. Fang, H. Ruan, F. Wu, Q. Huang, C. Xu and C. Kong (2012). "Effect of zinc acetate concentration on the structural and optical properties of ZnO thin films deposited by Sol-Gel method." International Journal of Physical Sciences, Vol. 7, No. 23, pp. 2971-2979.