太阳电池硅片ELCC技术用复合梯度涂层的研究

GRADIENTLY COMBINATED COATING FOR THE ELCC OF SOLAR CELL SILICON SHEETS

低成本太阳电池硅片电磁悬浮熔炼离心铸造（ＥＬＣＣ）技术可大幅度降低太阳电池的成本。硅片脱模技术是ＥＬＣＣ技术的关键之一。综合运用液相反应生成法、反应烧结法和溶胶－凝胶法，成功地在石墨基体表面制备了ＳｉＣ－Ｓｉ３Ｎ４－（Ｓｉ３Ｎ４＋ＳｉＯ２）复合梯度涂层，并用Ｘ射线衍射法（ＸＲＤ）、扫描电镜（ＳＥＭ）和界面性能测定仪（ＩＣＭ）考察了该涂层的组织结构和性能。

he Electromagnetic Levitation-melt Centrifugal Casting(ELCC)technology for preparing the low-cost solar cell silicon sheets paves a new way for drastically reducing the production cost of the solar cells.The releasing technique is a key method to the ELCC technology.By means of the Liquid Reaction-formation Method,the Reaction Bonding Method and the Sol-Gel Method,the gradiently combinated coating SiCSi3N4-(Si3N4+SiO2)has been successfully prepared on the graphite substrate.With the XRD,SEM and ICM.the structure and the property of the coating are examined.