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Effects of Radius and Orientation of Single-Walled Carbon Nanotubes on Their Nonlinear Tensile Deformation Behaviour 下载免费PDF全文
By capturing the atomic information and reflecting the behaviour governed by a nonlinear potential function, an analytical molecular mechanics approach is applied to establish the constitutive relation for single-walled carbon nanotubes (SWCNTs). The nonlinear tensile deformation curves of zigzag and armchair nanotubes with different radii are predicted, and the elastic properties of these SWCNTs are obtained. A conclusion is made that the nanotube radius has little effect on the mechanical behaviour of SWCNTs subject to simple tension, while the nanotube orientation has larger influence. 相似文献
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本文报导了通过低压金属有机物化学气相沉积(MOCVD)的InGaN/GaN量子阱蓝光发光二极管(LED)与钇铝石榴石(YAG)荧光粉结合而得的白光发光二极管(W-LED).在室温、正向电流20mA时,W-LED轴向亮度为170mcd,显色指数(CRI)达到82,色温(CCT)为7448K,CIE色坐标是(0.296,0.316),接近纯白色(0.33,0.33).随着注入电流的增强,测量并探讨了白光LED的发射光谱与发光强度的变化. 相似文献
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