Variation in Structural, Electrical and Optical Properties of Selenium Nanowires After Irradiation with Ni6+ Ions

다국어 초록 (Multilingual Abstract)

The eff ect of Ni ion irradiation on selenium nanowires of 80 nm diameter is studied in the present work. Se nanowires wereprepared by using electrodeposition technique in polycarbonate membrane. Changes in the structural, optical and electricalproperties are studied using XRD, UV/Vis spectroscopy and current–voltage characteristics, of the pristine and irradiatedsamples. X-ray diff raction study confi rms the variation in peak intensity without any shifting in peak position. Variation intexture coeffi cient and grain size was clearly observed which is a consequence of changing plane orientation, irradiationinduced grain growth and grain fragmentation. A decrease in the optical band gap takes place due to interstitial energy bandstates in the vicinity of conduction and valence band. IVC also shows variation in the conductivity which is due to the generationof current carriers with the passage of energetic ions.

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