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61.
Samiran Hazarika 《辐射效应与固体损伤》2016,171(11-12):925-935
The present work highlights swift heavy ion irradiation-induced shape evolution of gadolinium oxide (Gd2O3) nanorods synthesized via a sol-hydrothermal route. Upon dispersing Gd2O3 nanorods in the polyvinyl alcohol matrix, thin solid films were cast on borosilicate glass substrates. The films were then exposed to 80?MeV carbon-ion irradiation, while fluence was varied in the range of 1×1011–3×1012?ions/cm2. The post analyses were carried out by using X-ray diffraction, high resolution transmission electron microscopy (TEM) and Raman spectroscopy studies. An apparently observable shortening of length (L) and diameter (D) of the nanorods can be revealed through the TEM imaging analyses. Moreover, while exhibiting an aspect ratio (L/D) between 3.3 and 4.7, the nanorods were found to exist in the form of bunching at higher fluences. The irradiation-induced tamarind-like shape evolution at higher fluences was attributed to the overlapping of ion impacts on certain regions of the nanorods. The most intense Raman active peak of the pristine sample located at ~360?cm?1 was seen to experience blue-shifting (~375?cm?1) when irradiated at the highest fluence (~3×1012?ions/cm2). An altered shape evolution of a thermally and mechanically stable oxide system by the energetic ion impact would bring in new insights as regards construction of surface patterns and their potential use in miniaturized devices. 相似文献
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Hazarika Jenasree Talukdar Anusuya Rajaraman Prasanna Venkatesh 《Journal of Solid State Electrochemistry》2023,27(4):895-909
Journal of Solid State Electrochemistry - The anodic dissolution of Cobalt in H2O2 solution is investigated in the presence and absence of a complexing agent, oxalic acid, using various techniques... 相似文献