Research On The Implementation Of Nano-composite Film On Single Crystalline Silicon Solar Cells To Enhance Conversion Efficiency

• Main Authors: CHIEN,CHI-YU, 簡綺郁
• Other Authors: LU,HAO-YING
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/j7hhgg

碩士 === 國立金門大學 === 電子工程學系碩士班 === 107 === There are two topics in this research. One is rareearth ions(Sm3+ , Bi3+；Dy3+；Ce3+, Yb3+) doped Yttrium phosphate (YPO4) were prepared by the chemical co-precipitation method. And then added the surfactants (CTAB、Tween 80、PVP and PEG2000) to reduce the average diameter of phosphors. In the photoluminescence spectra (PL) and photoluminescence excitation spectra (PLE), YPO4: Sm3+, Bi3+、YPO4: Dy3+、1 g PEG2000 assisted YPO4: Dy3+、YPO4: Ce3+, Yb3+ and 1 g CTAB assisted YPO4: Ce3+, Yb3+ have the relative superiority of excitation intensity. Thus, these five kinds of phosphors were the main objects of discussion in this research. Scanning Electron Microscope (SEM) can observe the surfactants effectively reduce the average diameter of phosphors. All X-ray diffractometer (XRD) patterns are similar to the host material - YPO4 and exhibited the tetragonal crystal structure. The other topic is producing nano-composite film implemented onto a single crystalline silicon solar cell to improve the conversion efficiency. The SiO2 colloidal precursor was a preparation for the stoichiometric ratio of Tetraethyl orthosilicate (TEOS), Hydrochloric acid (HCl), Isopropyl alcohol(IPA) and distilled water. Then phosphors were dispersed in the colloidal precursor and the mixture above was coated onto a single crystalline silicon solar cell by spin coater. After coating, the solar cell was dried in the air atmosphere at 30°C for 10 minutes. The data of efficiency shows that can enhance 0.714% with 1 g CTAB assisted YPO4: Ce3+, Yb3+ -based nano-composite film on the solar cell. The Δƞ/ƞbare is up to 5.255%. The result has proved that the conversion efficiency of solar cells can be improved rapidly without any modification of basic cell structure.