Electrical and optical studies on thin films of indium phthalocyanine chloride

• Autorzy: Mammen, S. , Menon, C. S. , Unnikrishnan, N. V.
• Języki publikacji: EN

Abstrakty

EN

Vacuum evaporated thin films of indium phthalocyanine chloride are prepared at room temperature. Post evaporation annealing is done at temperatures of 353 K, 403 K, 453 K and 503 K. The electrical conductivity and optical absorption spectra of these films are studied. From the optical absorption spectra, over a wavelength range of 200-900nm, the optical energy band gap Eg is calculated. A decrease in Eg is observed with an increase of annealing temperature. The thermal activation energy, Ea, is not notably affected by annealing. It is found that Ea is varied with a change in thickness of the film

Słowa kluczowe

EN

phthalocyanine; activation energy; optical band gap; annealing

• Czasopismo: Materials Science Poland
• Rocznik: 2005
• Tom: Vol. 23, No. 3
• Strony: 707--713
• Opis fizyczny: Bibliogr. 24 poz., rys., tab.

Twórcy

autor

Mammen, S.

autor

Menon, C. S.

autor

Unnikrishnan, N. V.

• School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam 686 560, Kerala, India,

Bibliografia

• [1] GHOSH A.K., MOREL D.L., FENG T., SHAW R.F., ROWE C.A. Jr., J. Appl. Phys., 45 (1974), 230.
• [2] HAMANN C., MRWA A., MULLER M., GOPEL W., RAGER M., Sens. Actuat., B4 (1991), 73.
• [3] WILSON A., WRIGHT J.D., CHADWICK A.V., Sens. Actuat., B4 (1991), 499.
• [4] JOSEPH C.M., MENON C.S., Mater. Lett., 52 (2002), 220.
• [5] JOSEPH C.M., NARAYANAN UNNI K.N., MENON C.S., Mater. Lett., 50 (2001), 18.
• [6] KUDO K., IIZUKA M., KUNIYOSHI S., TANAKA K., Thin Solid Films, 393 (2001), 362.
• [7] BORSENBERGER P.M., WEISS D.S., Organic Photoreceptors for Imaging Systems, Marcel Dekker,New York, 1993.
• [8] COLLINS R.A., BELGACHI A., Mater. Lett., 9 (1989), 349.
• [9] COLLINS R.A., STRICKLAND K.R.,JEFFERY M.J., DAVISON K.,JONES T.A., Mater. Lett., 10 (1990), 170.
• [10] RIAD A.S., Physica B, 270 (1999), 148.
• [11] ABDEL-MALIK T.G., ALY A.A., ABDEEN A.M., EL-LABANY H.M., Phys. Status Sol. A, 76 ( 1983), 651.
• [12] MAISSEL L.I., GLANG R., Handbook of Thin Film Technology, McGraw-Hill, New York, 1985.
• [13] NARAYANAN UNNI K.N., MENON C.S., Mater. Lett., 45 (2000), 326.
• [14] NARAYANAN UNNI K.N., MENON C.S., J. Mater. Sci. Lett., 20 (2001), 1203.
• [15] NARAYANAN UNNI K.N., MENON C.S., J. Mater. Sci. Lett., 20 (2001), 1207.
• [16] GUTMANN F., LYONS L.E., Organic Semiconductors, Wiley, New York, 1967, p. 509. Thin films of indium phthalocyanine chloride 713
• [17] AMBILY S., MENON C.S., Thin Solid Films, 347 (1999), 284.
• [18] KRISHNAKUMAR K.P., MENON C.S., Indian J. Pure Appl. Phys., 36 (1998), 342.
• [19] AMBILY S., MENON C.S., Indian J. Pure Appl. Phys., 37 (1999), 566.
• [20] SUSSMAN A., J. Appl. Phys., 38 (1967), 2748.
• [21] OUGH E.A., STILLMAN J.M., Can. J. Chem., 71 (1993), 1891.
• [22] COLLINS R.A., KRIER A., ABASS A.K., Thin Solid Films, 229 (1993), 113.
• [23] BARDEEN J., SLATT F.J., HALL L.T., Photoconductivity Conf., Wiley, New York, 1965.
• [24] HARRISON S. E., ASSOUR J.M., J. Chem. Phys., 40 (1964), 365.