Bijay Krishna Girls College

Hāora, India

Bijay Krishna Girls College

Hāora, India
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Banerjee A.,Bijay Krishna Girls College | Sarkar A.,Bijay Krishna Girls College
Asian Journal of Chemistry | Year: 2011

A simple non linear form of dielectric response function is proposed. The proposed dielectric response function is an essential extension of Debye linear response. The proposed dielectric response function is a simple one following L-C-R electric analogue of material to depict a non Debye response function. The function of diecectric response is capable to reproduce existing other response function along with some new features. The corresponding form of A.C. electrical conductivity and susceptibility are also extracted. The overall results obtained are good and encouraging.


Gangopadhyay A.,Bijay Krishna Girls College | Sarkar A.,Bijay Krishna Girls College
Asian Journal of Chemistry | Year: 2011

In this work ZnO nano clusters were grown in biopolymer, gum acacia background. Attempt has made to control the nano-cluster size by in situ chemical sol-gel process through the control of the rate of forward reaction. X-Ray diffraction study and optical absorption study and D.C. conductivity study on the nano clustered material were done to get information on grain size. An empirical formula relating nano-size and conductivity fluctuation has been proposed here on the basis of preliminary observation. The work indicates a possible new characterization technique by the use of the D.C. I-V characteristics. Results of electrical transport through the developed nano-composites are found to exhibit dominant quantum effect at room temperature.

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