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The effect of electron beam irradiation on WS _2 nanotubes

机译:电子束辐照对WS _2纳米管的影响

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WS _2 nanotubes were irradiated with a focused electron beam in an electron microscope. The results show that the nanotubes are destroyed from the outer layer to the inside. The displaced atoms can leave the irradiated area by sputtering events or by diffusive migration along the shells and the inner hollow. The smaller tubes have a lower stability. The stability of the tube increases after the central hollow is closed and the asymmetric irradiation can lead to a bending of the tube. Electron irradiation causes the change of WS _2 nanotubes into a polycrystalline structure. The primary cause of the electron irradiation damage in WS _2 nanotubes is knock-on collisions.
机译:在电子显微镜中用聚焦电子束辐照WS _2纳米管。结果表明,纳米管从外层到内部被破坏。被置换的原子可以通过溅射事件或通过沿壳和内部中空的扩散迁移而离开照射区域。较小的管具有较低的稳定性。在中央空腔被封闭之后,管的稳定性增加,并且不对称的辐射会导致管的弯曲。电子辐照导致WS _2纳米管变成多晶结构。 WS _2纳米管中电子辐照损伤的主要原因是碰撞碰撞。

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