Takaloo Ashkan Vakilipour, Sadeghi Hatef
Research Center and the Research Institute of Advanced, Materials (RIAM), Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea.
Theory of Molecular-Scale Transport, Physics Department, Lancaster University, Lancaster LA1 4YB, UK.
J Nanosci Nanotechnol. 2019 Nov 1;19(11):7452-7455. doi: 10.1166/jnn.2019.16622.
Recent experimental indications of room-temperature quantum interference in the sub-nanometer single molecules suggest that such effects could be utilized to engineer thermoelectric properties of organic single molecule junctions. In this paper, we show that the thermoelectric power factor is significantly enhanced in double path ferrocene cycles compared to the single path counterpart. Due to quantum interference in the double path structure, the Seebeck coefficient is significantly enhanced while the conductance is less affected compared to single path structure. The power factor of the ferrocene cycles are 1-2 orders of magnitude higher than the best organic material reported today. This opens new avenues for future molecular scale organometallic thermoelectricity.
近期关于亚纳米级单分子中室温量子干涉的实验迹象表明，此类效应可用于设计有机单分子结的热电特性。在本文中，我们表明，与单路径的二茂铁循环相比，双路径二茂铁循环中的热电功率因子显著增强。由于双路径结构中的量子干涉，与单路径结构相比，塞贝克系数显著增强，而电导率受影响较小。二茂铁循环的功率因子比目前报道的最佳有机材料高1 - 2个数量级。这为未来分子尺度的有机金属热电学开辟了新途径。
