Synthesis and characterization of cadmium hydroxide nano-nest by chemical route |
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| Authors: | RR Salunkhe TP Gujar |
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| Institution: | a Thin Film Physics Laboratory, Department of Physics, Shivaji University, Kolhapur 416004 (M. S.), India
b Korea Institute of Science and Technology 39-1, Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Republic of Korea |
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| Abstract: | A facile chemical route based on room temperature chemical bath deposition (CBD) was developed to deposit the Cd(OH)2 nano-nest. The growth mechanism follows two-stage crystallization with initial growth of nucleation centers, followed by subsequent anisotropic growth. The nano-nest morphological evolution of Cd(OH)2 on different substrates has been carried out. These films have been characterized by the techniques; such as X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), optical absorption, contact angle measurement and thermoelectric power (TEP) measurements. The X-ray diffraction study revealed that the as deposited film consists of cadmium hydroxide (Cd(OH)2) phase. The nano-nest consisted of wires with nearly uniform in dimensions, with diameter around 30 nm and length of few microns. As-deposited Cd(OH)2 film used in this study showed water contact angle of 66°. The optical bandgap was found to be 3.2 eV, with n-type electrical conductivity as confirmed from thermo-emf measurements. |
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| Keywords: | Nano-nest Cadmium hydroxide Growth mechanism Chemical bath deposition |
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