分子有机半导体中从带传导到跳跃传导的普遍转变。
Universal crossover from band to hopping conduction in molecular organic semiconductors.
作者信息
Schön J H, Kloc C, Batlogg B
机构信息
Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974, USA.
出版信息
Phys Rev Lett. 2001 Apr 23;86(17):3843-6. doi: 10.1103/PhysRevLett.86.3843.
The charge transport in a variety of herringbone-stacked organic molecular semiconductors is investigated in the temperature range from 10 to 550 K. A crossover from coherent bandlike charge transport with mobilities up to several thousand cm (2)/V s at low temperature to an incoherent hopping motion at high temperatures is observed. This is attributed to the localization of the charge carrier due to increased electron-phonon interaction and, finally, the formation of a lattice polaron.
在10至550K的温度范围内，研究了多种人字形堆叠有机分子半导体中的电荷传输。观察到从低温下迁移率高达数千cm²/V s的相干带状电荷传输到高温下的非相干跳跃运动的转变。这归因于由于电子 - 声子相互作用增加导致的电荷载流子的局域化，最终形成晶格极化子。
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