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The large‐scale synthesis of high‐quality boron nitride nanotubes (BNNTs) has attracted considerable interests due to their applications in nanocomposites, thermal management, and so on. Despite decades of development, efficient preparation of high‐quality BNNTs, which relies on the effective design of precursors and catalysts and deep insights into the catalytic mechanisms, is still urgently needed...
Position‐controlled vapor‐liquid‐solid (VLS) growth of nanowires (NWs) is investigated using GaAs substrates with SiN‐patterned masks and Au catalysts for the realization of axial GaAsSb/InAs heterostructures. Rod‐like InAs NWs are obtained by the introduction of a small amount of HCl gas. The InAs NW diameter depends on the Au catalyst size and pitch of NWs, which can be explained by the VLS growth...
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