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《科学》 第392卷 第6802期 · 2026年6月4日 · 中文解读

1纳米极限下扶手椅型二硫化钼纳米管的受限生长

Confined growth of armchair MoS2 nanotubes at the 1-nm limit · Y. Nakanishi et al.
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这篇讲什么
本文报道了在氮化硼纳米管内通过空间受限反应合成直径接近1纳米的单壁二硫化钼纳米管,并发现其具有强扶手椅型手性选择性,且带隙随直径减小而系统性缩小。
原文开头
Yusuke Nakanishi1,2,3*, Ryosuke Senga4*, Shinpei Furusawa3, Yuta Sato4, Zheng Liu5,6, Takumi Tanaka3, Yanlin Gao7,8, Mina Maruyama8,9, Susumu Okada7,8, Yasumitsu Miyata3,10, Kazu Suenaga6* Atomically thin nanotubes of semiconducting transition metal dichalcogenides offer a platform for exploring quantum phenomena at the one-dimensional limit and for realizing nanoscale transistor channels. However, conventional syntheses produce only large-diameter (>10 nm), multiwalled tubes with uncontrolled chiralities. We report the synthesis of single-walled molybdenum disulfide (MoS2) nanotubes with diameters approaching 1 nm, achieved through spatially confined reactions inside boron nitride (BN) nanotubes. The confined geometry stabilizes otherwise inaccessible, highly strained MoS2 nanotubes, yielding structurally well-defined armchair configurations. Their bandgaps shrink systematically with decreasing diameter, in accordance with long-standing theoretical predictions. …
摘自《科学》(Science)第392卷 第6802期 · 2026年6月4日,Y. Nakanishi et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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