In situ energy dispersive x-ray reflectometry measurements on organic solar cells upon working
In situ energy dispersive x-ray reflectometry measurements on organic solar cells upon working
复制标题
有机太阳能电池工作时的原位能量色散 X 射线反射测量
DOI：
10.1063/1.2128069
复制
发表时间：
2005
影响因子：
4
通讯作者：
C. Sentein
中科院分区：
文献类型：
--
作者：
B. Paci;A. Generosi;V. R. Albertini;P. Perfetti;R. D. Bettignies;M. Firon;J. Leroy;C. Sentein
通过时间分辨能量色散X射线反射率（XRR）研究了塑料太阳能电池形态的变化。 XRR 技术的这种非常规应用可以跟踪有机光伏器件在工作时的原位形态演化。该研究包括三个步骤：对代表电池构建中间阶段的各种样品进行初步的 XRR 测量，提供有关不同层电子密度的准确数据；验证器件在环境条件下的形态稳定性；在黑暗和人造光条件下 15 小时内实时收集 XRR 图案，从而可以监测电极-活性层界面处系统形态的变化。通过这种方式，可以直接观察到该界面逐渐变厚，导致器件性能下降。
The change in the morphology of plastic solar cells was studied by means of time-resolved energy dispersive x-ray reflectivity (XRR). This unconventional application of the XRR technique allowed the follow up of in situ morphological evolution of an organic photovoltaic device upon working. The study consisted of three steps: A preliminary set of XRR measurements on various samples representing the intermediate stages of cell construction, which provided accurate data regarding the electronic densities of the different layers; the verification of the morphological stability of the device under ambient condition; a real-time collection of XRR patterns, both in the dark and during 15h in artificial light conditions which allowed the changes in the system morphology at the electrode-active layer interface to be monitored. In this way, a progressive thickening of this interface, responsible for a reduction in the performances of the device, was observed directly.