Photovoltaic and Impedance Spectroscopy Study ofScreen-Printed TiO2 Based CdS Quantum Dot SensitizedSolar Cells

Materials

Amanullah Fatehmulla¹  W. A. Farooq¹  M. Aslam¹  M. Atif¹  Syed Mansoor Ali¹ 

[1] Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;

关键词: cadmium sulphide (CdS);    quantum dot;    solar cells;    photovoltaic;    impedance spectroscopy;   

DOI  :  10.3390/ma8010355

来源: DOAJ

【 摘 要 】

Cadmium sulphide (CdS) quantum dot sensitized solar cells (QDSSCs) based on screen-printed TiO2 were assembled using a screen-printing technique. The CdS quantum dots (QDs) were grown by using the Successive Ionic Layer Adsorption and Reaction (SILAR) method. The optical properties were studied by UV-Vis absorbance spectroscopy. Photovoltaic characteristics and impedance spectroscopic measurements of CdS QDSSCs were carried out under air mass 1.5 illuminations. The experimental results of capacitance against voltage indicate a trend from positive to negative capacitance because of the injection of electrons from the Fluorine doped tin oxide (FTO) electrode into TiO2.

【 授权许可】

Unknown