Ag2S sensitized WO3 photoelectrodes for solar cells

• Main Authors: Kai-Yu Cheng, 鄭凱予
• Other Authors: 李明威
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/84536343613023939157

碩士 === 國立中興大學 === 物理學系所 === 101 === Ag2S quantum dots were produced using successive ionic layer adsorption and reaction (SILAR) of Ag(NO3) and Na2S. The quantum dots were synthesized on a nanoporous WO3 electrode. Passivation treatments including a TiO2 under layer and Pt counter-electrode were used. The optical properties of the Ag2S quantum dots were characterized by UV-vis spectroscopy. Polysulfide was used as the electrolyte. The best cell yields a short-circuit current of 5.81 mA/cm2, an open circuit voltage of 0.21V, a fill factor of 25.54% and a power conversion efficiency of 0.312 % at one sun. External quantum efficiency at 650 nm to obtain maximum Transform efficiency of 30%.