Gnida Paweł, Jarka Paweł, Chulkin Pavel, Drygała Aleksandra, Libera Marcin, Tański Tomasz, Schab-Balcerzak Ewa
Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Skłodowska Str., 41-819 Zabrze, Poland.
Institute of Engineering Materials and Biomaterials, Silesian University of Technology, 18a Konarskiego Str., 44-100 Gliwice, Poland.
Materials (Basel). 2021 Mar 26;14(7):1633. doi: 10.3390/ma14071633.
The effect of TiO nanostructures such as nanoparticles, nanowires, nanotubes on photoanode properties, and dye-sensitized solar cells photovoltaic parameters were studied. The series of dye-sensitized solar cells based on two dyes, that is, commercially N719 and synthesized 3,7'-bis(2-cyano-1-acrylic acid)-10-ethyl-phenothiazine were tested. Additionally, the devices containing a mixture of this sensitizer and chenodeoxycholic acid as co-adsorbent were fabricated. The amount of adsorbed dye molecules to TiO was evaluated. The prepared photoanodes with different TiO nanostructures were investigated using UV-Vis spectroscopy, optical, atomic force, and scanning electron microscopes. Photovoltaic response of constructed devices was examined based on current-voltage characteristics and electrochemical impedance spectroscopy measurements. It was found that the highest UV-Vis absorption exhibited the photoanode with nanotubes addition. This indicates the highest number of sensitizer molecules anchored to the titanium dioxide photoanode, which was subsequently confirmed by dye-loading tests. The highest power conversion efficiency was (6.97%) for solar cell containing nanotubes and a mixture of the dyes with a co-adsorbent.
研究了纳米颗粒、纳米线、纳米管等TiO纳米结构对光阳极性能以及染料敏化太阳能电池光伏参数的影响。测试了基于两种染料（即市售的N719和合成的3,7'-双(2-氰基-1-丙烯酸)-10-乙基吩噻嗪）的一系列染料敏化太阳能电池。此外，还制备了含有这种敏化剂与鹅去氧胆酸作为共吸附剂混合物的器件。评估了吸附到TiO上的染料分子数量。使用紫外-可见光谱、光学显微镜、原子力显微镜和扫描电子显微镜对具有不同TiO纳米结构的制备光阳极进行了研究。基于电流-电压特性和电化学阻抗谱测量，考察了构建器件的光伏响应。发现添加纳米管的光阳极表现出最高的紫外-可见吸收。这表明锚定在二氧化钛光阳极上的敏化剂分子数量最多，随后通过染料负载测试得到了证实。含有纳米管以及染料与共吸附剂混合物的太阳能电池的最高功率转换效率为(6.97%)。
