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arXiv 0912.0146cond-mat.mes-hall
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有机-无机杂化体系中电荷转移的集体效应

Collective effects in charge transfer within a hybrid organic-inorganic system

Y. Paltiel, G. Jung, T. Aqua, D. Mocatta, U. Banin, R. Naaman

摘要:

通过研究光敏栅场效应晶体管中的电流噪声,发现了一个集体电子转移(ET)过程。光敏栅是由有机分子连接到光敏栅表面的纳米晶体形成的。通过有机连接剂的ET的波动反映在晶体管电导率的波动中。电流噪声具有雪崩特性。从噪声功率谱、雪崩分布和平均雪崩大小对雪崩持续时间的依赖关系得到的临界指数是一致的。提出了一个合理的模型来解释这一现象

英文摘要:

A collective electron transfer (ET) process was discovered by studying the current noise in a field effect transistor with light-sensitive gate formed by nanocrystals linked by organic molecules to its surface. Fluctuations in the ET through the organic linker are reflected in the fluctuations of the transistor conductivity. The current noise has an avalanche character. Critical exponents obtained from the noise power spectra, avalanche distributions, and the dependence of the average avalanche size on avalanche duration are consistent with each other. A plausible model is proposed for this phenomenon

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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