Hafez H S, Shenouda S S, Fadel M
Nano-Photochemistry and its Environmental Applications Laboratory, Environmental Studies and Research Institute (ESRI), University of Sadat City, Sadat City 23897, Menofia, Egypt.
Semiconductors Laboratory and Nanoscience Laboratory for Environmental and Bio-medical Applications (NLEBA), Department of Physics, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt.
Spectrochim Acta A Mol Biomol Spectrosc. 2018 Mar 5;192:23-26. doi: 10.1016/j.saa.2017.10.066. Epub 2017 Nov 7.
In this work of research, anthocyanin as a natural dye obtained from raspberry fruits, was used and tested as a photon harvesting/electron donating dye in titanium dioxide nanoparticle-based DSSCs. A working photoelectrode made from TiO nanoparticles with an average particle size (10-40nm) that is coated on Florine doped tin-oxide substrate, was prepared via a simple and low cost hydrothermal method. A detailed structural and morphological analysis of the TiO photoactive electrode was investigated by X-ray diffraction (XRD), diffuse reflectance spectrometer, transmission electron microscope (TEM) and scanning electron microscope (SEM). Complete photovoltaic characteristics including (current, voltage, outpower, and responsivity) of the natural anthocyanin based dye sensitized solar cell have been investigated under different illumination intensity ranging from 10 to 100mW.cm. The cell responsivity and efficiency of the fabricated solar cell under different illumination intensity were found to be in the range (R=15.6-23.8mA.W and η=0.13-0.25) at AM=1.5 conditions. This study is important for enhancing the future applications of the promising DSSC technology.
在这项研究工作中，花青素作为一种从树莓果实中提取的天然染料，被用作基于二氧化钛纳米颗粒的染料敏化太阳能电池（DSSC）中的光子捕获/电子供体染料进行测试。通过一种简单且低成本的水热法制备了一种工作光电极，该电极由平均粒径为（10 - 40nm）的TiO纳米颗粒制成，并涂覆在氟掺杂氧化锡衬底上。通过X射线衍射（XRD）、漫反射光谱仪、透射电子显微镜（TEM）和扫描电子显微镜（SEM）对TiO光活性电极进行了详细的结构和形态分析。在10至100mW.cm的不同光照强度下，研究了基于天然花青素的染料敏化太阳能电池的完整光伏特性，包括（电流、电压、输出功率和响应度）。在AM = 1.5条件下，发现所制备的太阳能电池在不同光照强度下的电池响应度和效率范围为（R = 15.6 - 23.8mA.W且η = 0.13 - 0.25）。这项研究对于增强有前景的DSSC技术的未来应用具有重要意义。
