Kamoldilok, Surachart

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Kamoldilok, Surachart
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Kamoldilok, S.
Kamoldilok, Surachat
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surachart.ka@kmitl.ac.th

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    Item type:Publication,
    The effect of substrate temperature on structure and optical properties of copper (II) phthalocyanine (CuPc) thin films prepared by organic evaporation
    (2007-08-28)
    Kamoldilok, Surachart
    ;
    Tunhoo, Benchapol
    ;
    Sumriddetchkajorn, Sarun
    ;
    Nukeaw, Jiti
    The influence of substrate temperature controls on Copper (II) phthalocyanine (CuPc) organic thin films onto glass substrate by organic evaporation system has been examined by X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM) and UV-VIS spectrophotometer. The two control methods are an on-off switching temperature control and a phase temperature control. The various substrate temperatures were controlled at 27, 80, 100, 120 and 150 °C, respectively. The thickness of all thin films is 30 nm. The XRD results from both methods show strongly peaks in orientation of [200] plane as α-phase monoclinic structure. By an on-off switching controlled temperature, the intensity of XRD peaks is increased with increasing substrate temperature. While intensity of XRD results from a phase controlled temperature shows increasing from 27 to 100 °C but decreasing from 120 to 150 °C. The CuPc grown at 150 °C exhibits nanorod-like structure obtained from an on-off switching temperature control and fiber-like structures obtained from a phase temperature controls. The optical absorptions of CuPc thin films of both methods determined from UV-VIS spectrophotometer show two strong peaks at 330 nm and 620 nm, denoted the B-band and Q-band, respectively. © 2007 IEEE.