Effects of Laser Firing on PhotovoltaicCharacteristics of Screen-Printed MonocrystallineSilicon Solar Cells

• Main Authors: Thanh-Tung Phan, 潘清同
• Other Authors: Wei-Ching Chuang
• Format: Others
• Language: en_US
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/8de8k3

碩士 === 國立虎尾科技大學 === 光電與材料科技研究所 === 100 === Effects of laser-firing (LF) and spin-on-dopant phosphorus (SOD-P) on photovoltaic characteristics of screen-printed monocrystalline silicon solar cells(SPMSSCs) were demonstrated in this work. Firstly, the backside Al electrodes of SPMSSCs will be laser-fired under various conditions. Then, the effects of SOD-P on the emitter layer of SPMSSCs were also established. The conditions of LF include the power of laser, the frequency, the speed, the pulse width, and the shape of pattern. The results suggest that the use of the point pattern of laser firing is better than that of the scan line pattern ones. After the LF process on the backside Al electrodes, the conversion efficiency of SPMSSCs can be increased from 16% to 16.6%. To enhance the effects of SOD-P on the emitter layer of SPMSSCs, this study also discusses the tasks of finding the best condition for laser firing. The conversion efficiency of SPMSSCs can be increased from 13.7% to 14.3%.