We have experimentally tested whether spin-transport and charge-transport in pristine π-conjugated polymer films at room temperature occur via the same electronic processes. We have obtained the spin diffusion coefficient of several π-conjugated polymer films from the spin diffusion length measured by the technique of inverse spin Hall effect and the spin relaxation time measured by pulsed electrically detected magnetic resonance spectroscopy. The charge diffusion coefficient was obtained from the time-of-flight mobility measurements on the same films. We found that the spin diffusion coefficient is larger than the charge diffusion coefficient by about 1-2 orders of magnitude and conclude that spin and charge transports in disordered polymer films occur through different electronic processes.

中文翻译：

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原始π共轭聚合物中自旋和电荷传输的分离。

我们已经通过实验测试了室温下原始π-共轭聚合物薄膜中的自旋传输和电荷传输是否通过相同的电子过程发生。从通过逆自旋霍尔效应技术测量的自旋扩散长度和通过脉冲电检测磁共振波谱测量的自旋弛豫时间，我们已经获得了几个π共轭聚合物薄膜的自旋扩散系数。电荷扩散系数是通过在相同薄膜上的飞行时间迁移率测量获得的。我们发现自旋扩散系数比电荷扩散系数大约1-2个数量级，并得出结论，无序聚合物膜中的自旋和电荷传输通过不同的电子过程发生。