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首页> 外文会议>Fullerenes and Nanotubes: The Building Blocks of Next Generation Nanodevices: Fullorenes >CHARGE TRANSFER AT CARBON NANOTUBES WITH ENCAPSULATED C_(60) and C_(70) (PEAPODS)
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CHARGE TRANSFER AT CARBON NANOTUBES WITH ENCAPSULATED C_(60) and C_(70) (PEAPODS)

机译：封装了C_（60）和C_（70）的碳纳米管的电荷转移（PEAPODS）

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摘要

Charge-transfer on fullerene peapods (C_(60)@SWCNT and C_(70)@SWCNT) was studied by electrochemistry in 0.2 M LiClO_4 + acetonitrile and in 1-butyl-3-methylimidazolium tetrafluoroborate (ionic liquid). This method allows easy and precise control of the population of electronic states near the Fermi level. Electrochemistry of peapods is dominated by capacitive double-layer charging, analogous to that of empty tubes. No fullerene-related faradaic processes are detectable in peapods. Vis-NIR spectroelectrochemistry points to reversible and fast bleaching of the electronic transitions between Van Hove singularities, which also causes reversible quenching of resonance Raman scattering of both radial breathing and tangential modes of SWCNT. Anodic charging of C_(60)@SWCNT leads to intensity enhancement of the C_(60) Raman modes. This "anodic enhancement" is not reproduced in C_(70)@SWCNT. All the relevant modes of C_(70)-peapods show the normal symmetric charge-transfer bleaching as the tube-related lines.
机译：在0.2 M LiClO_4 +乙腈和1-丁基-3-甲基咪唑四氟硼酸酯（离子液体）中通过电化学研究了富勒烯豌豆（C_（60）@SWCNT和C_（70）@SWCNT）上的电荷转移。这种方法可以轻松而精确地控制费米能级附近的电子态。豌豆脚的电化学主要由电容性双层电荷控制，类似于空管。在豆荚中没有检测到与富勒烯有关的法拉第过程。 Vis-NIR光谱电化学表明，范霍夫奇异点之间的电子跃迁可逆且快速地脱色，这也导致SWCNT径向呼吸和切向模式的共振拉曼散射可逆地猝灭。 C_（60）@SWCNT的阳极电荷导致C_（60）拉曼模式的强度增强。 C_（70）@SWCNT中未复制此“阳极增强”。 C_（70）-二足形体的所有相关模式均显示正常的对称电荷转移漂白为与管有关的线。

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