Université de Bordeaux, Centre National de la Recherche Scientifique (CNRS), Institut National Polytechnique de Bordeaux (INP), Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629, 16 Avenue Pey-Berland, Pessac CEDEX, F-33607, France.
Macromol Rapid Commun. 2018 Jan;39(2). doi: 10.1002/marc.201700504. Epub 2017 Oct 24.
The fabrication of organic solar cells from aqueous dispersions of photoactive nanoparticles has recently attracted the interest of the photovoltaic community, since these dispersions offer an eco-friendly solution for the fabrication of solar cells, avoiding the use of toxic solvents. In this work, aqueous dispersions of pure poly[n-9'-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)] (PCDTBT) and [6,6]-phenyl-C -butyric acid methyl ester (PC BM) nanoparticles, as well as of composite PC BM:PCDTBT nanoparticles, are prepared using the nanoprecipitation postpolymerization method. These dispersions are subsequently used to form the active layer of organic photovoltaic cells. Thin films of PC BM and PCDTBT are obtained by spray deposition of the nanoparticles' dispersions, and are characterized using a combination of spectroscopic and microscopic techniques. Photovoltaics that incorporate these active layers are fabricated thereafter. The impact of the annealing temperature and of the composition of the active layer on the efficiency of the solar cells is studied.
最近，人们对将光活性纳米粒子的水基分散体用于有机太阳能电池的制造产生了兴趣，因为这些分散体为太阳能电池的制造提供了一种环保的解决方案，避免了使用有毒溶剂。在这项工作中，使用后聚合纳米沉淀法制备了纯聚[n-9'-十七烷基-2,7-咔唑-alt-5,5-(4',7'-二-2-噻吩基-2',1',3'-苯并噻二唑)]（PCDTBT）和[6,6]-苯基-C-丁酸甲酯（PC BM）纳米粒子的水基分散体，以及 PC BM:PCDTBT 纳米粒子的复合材料分散体。随后，将这些分散体用于形成有机光伏电池的活性层。通过喷涂纳米粒子的分散体获得了 PC BM 和 PCDTBT 的薄膜，并使用光谱和显微镜技术的组合对其进行了表征。此后，制造了包含这些活性层的光伏器件。研究了退火温度和活性层组成对太阳能电池效率的影响。
