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Charge Transport in Mesoscopic Carbon Network Structures

机译：介观碳网络结构中的电荷传输

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摘要

The charge transport and quantum interference effects in low-dimensional mesoscopic carbon networks prepared using self-assembling were investigated. The mechanism of conduction in low-dimensional carbon networks was found to depend on the annealing temperature of the nitrocellulose precursor. The charge transport mechanism for carbon networks obtained at T_(ann)=750℃ was found to be the hopping conductivity in the entire investigated temperature range. The Coulomb gap near the Fermi level in the density of states was observed in the investigated carbon networks. The width of the Coulomb gap was found to be decreased with the annealing temperature of the carbon structures. The crossover from the strong localization to the weak localization regime of the charge transport in the carbon structures, obtained at T_(ann)=950℃ and T_(ann)=1150℃, was observed in the temperature range T>100 K and T>20 K, respectively.
机译：研究了自组装制备的低维介观碳网络中的电荷输运和量子干扰效应。发现低维碳网络中的传导机制取决于硝化纤维素前体的退火温度。发现在T_（ann）= 750℃下获得的碳网络的电荷传输机制是整个研究温度范围内的跳跃电导率。在研究的碳网络中观察到了费密能级附近的库仑能级。发现库仑间隙的宽度随着碳结构的退火温度而减小。在T>（100）K和T> 100的温度范围内，观察到碳结构中电荷迁移从强局域向弱局域的转变。 > 20K。

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