H. Abdullah, K. J. Xian, K. C. Ying, N. M. Naim, M. Akhtaruzzaman, D. D. Berhanuddin, L. K. Keng, M. Rizwan, M. H. D. Othman, M. F. Ahmad, Y. W. Fen, A. N. Jannah
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引用次数: 0
摘要
摘要 近年来,氧化锌纳米薄膜因其独特的光伏特性被研究人员广泛应用于染料敏化太阳能电池(DSSCs)。本文研究了掺杂镍金属的浓度对氧化锌薄膜 DSSC 的影响。ZnO-Ni 纳米复合材料是通过溶胶-凝胶法合成的。本文报告了 ZnO-Ni 纳米复合薄膜的结构、形态和化学特性。通过场发射扫描电子显微镜(FESEM)、X 射线衍射(XRD)、原子力显微镜(AFM)和绘图分析发现,当镍的比例增加时,ZnO-Ni 的结晶和晶粒尺寸也随之增大。紫外可见光谱的光学研究表明,氧化锌-镍光阳极的带隙能在 3.5-3.7 eV 之间。能量色散 X 射线(EDX)和 X 射线光电子能谱(XPS)确定了与氧化锌和镍有关的元素和化学键。利用光电流-电压(J-V)测量和电化学阻抗谱(EIS)分析了光伏性能。结果表明,镍浓度为 60% 的 ZnO-Ni 光阳极 DSSC 功率转换效率最高(0.421%),Jsc、Voc 和 FF 分别为 1 mA/cm2、0.95 V 和 0.443。
Analysis of Dye-Sensitized Solar Cells Based on ZnO and ZnO–Ni Photoanodes with Various Ni Concentrations
In recent years, ZnO nanostructure thin films have been used extensively by researchers in dye-sensitized solar cells (DSSCs) application due to its unique photovoltaic properties. The effects of the concentrations of Ni metal dopants on ZnO thin film DSSCs were investigated. ZnO–Ni nanocomposites were synthesized via sol-gel method. In this paper, the structural, morphological, and chemical properties of ZnO–Ni nanocomposite thin films were reported. Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), atomic force microcopy (AFM) and mapping analyses have found out that the crystallite and grain sizes of ZnO-Ni is increasing when Ni percentage is increased. The optical study from UV-Vis spectroscopy indicates that the band gap energy for ZnO–Ni photoanodes is in the range 3.5–3.7 eV. Energy dispersion X-ray (EDX) and X-ray photoelectron spectroscopy (XPS) have identified the elements and chemical bonding that are related to ZnO and Ni. The photovoltaic performances were analyzed using photocurrent-voltage (J–V) measurement and electrochemical impedance spectroscopy (EIS). As the result, ZnO–Ni photoanode based DSSC with 60% of Ni concentration shows the highest power conversion efficiency (0.421%) with Jsc, Voc and FF of 1 mA/cm2, 0.95 V and 0.443.
期刊介绍:
Applied Solar Energy is an international peer reviewed journal covers various topics of research and development studies on solar energy conversion and use: photovoltaics, thermophotovoltaics, water heaters, passive solar heating systems, drying of agricultural production, water desalination, solar radiation condensers, operation of Big Solar Oven, combined use of solar energy and traditional energy sources, new semiconductors for solar cells and thermophotovoltaic system photocells, engines for autonomous solar stations.