The Study of Diffusion Process in Multi-crystalline Solar Cell Manufacturing - A Case Study of T Company

• Main Authors: TSAI,JIA-JING, 蔡佳靜
• Other Authors: LIN,YU-HSIN
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/xj4g7w

碩士 === 明新科技大學 === 工業工程與管理系碩士班 === 106 === To shape the p-n junction is a critical process in the multi-crystalline solar cell element manufacturing process. The objective of this study is to set the parameters of diffusion process and enhance the efficiency of solar-cell. After experimental analysis, three key factors were identified from eight experimental factors:the concentration of POCL3, the flow rate of Nitrogen and the deposition time. The results of the study showed that the best experimental parameter combination was the POCL3concentration of 925 sccm（standard cubic centimeter per minute, cc/min）, the N2 flow rate of 7.5 slm（standard litre per minute, l/min）, and deposition time of 13 minutes. After the experimental parameters were introduced into the mass production, the electrical performance showed that the open circuit voltage Vocwas increased by 0.023 and the short-circuit current Iscwas increased by 0.02. The battery conversion efficiency increased from 17.646% to 17.708%.The resultindicates that the experimental design can be used tofind an optimal combination for process parameters.