纳米Ag-Cu粉在多晶硅太阳能电池银浆中的应用  

Application of Nano Ag-Cu Powders to the Silver Paste of Polysilicon Solar Cells

作　　者：黄霞[1] 金菘 王堃[1] 范贺贺 黄惠良[1] 

机构地区：[1]上海交通大学微纳电子学系光伏实验室,上海200240

出　　处：《压电与声光》2017年第5期746-749,共4页Piezoelectrics & Acoustooptics

基　　金："八六三"计划基金资助项目(BC3400026)

摘　　要：采用稻米中淀粉作为稳定剂,氢氧化钠作为还原剂的方法制备了银铜纳米颗粒。利用扫描电子显微镜在高倍数下观察Ag-Cu纳米颗粒表面形貌;通过透射电镜定性分析了银铜纳米颗粒的空间结构;通过X线光电子能谱分析得到粉末中元素成分及其相对含量;通过热重分析定量地确定了太阳能电池的烧结工艺;通过太阳能模拟器分别对正电极浆料中加入纳米Ag-Cu颗粒(质量分数为10%)前、后的多晶硅电池片进行光电性能测量。结果显示,在银浆中加入了质量分数为10%的纳米Ag-Cu后,电池片的各参数都有提高,其光电转化效率提高了5.65%。实验表明,利用Cu纳米颗粒取代部分Ag纳米颗粒,可提高电池的光电转化效率。The silver-copper nanoparticles were prepared by using the starch in rice as the stabilizer and the sodium hydroxide as the reducing agent.The surface morphology of silver-copper nanoparticles was observed by SEM at high magnification and the structure of the silver-copper nanoparticles was qualitatively analyzed by the transmission electron microscopy.The elemental composition and the relative content of each element were determined by X-ray photoelectron spectroscopy.The solar cell sintering process was quantitatively determined by thermogravimetric analysis（TGA）.The photoelectric performance measurements of the polycrystalline silicon cells with and without addition of 10% Ag-Cu nanoparticles to the positive electrode paste were performed respectively by using the solar simulator.The results showed that the addition of 10% nano-Ag-Cu to the positive electrode paste resulted in the increase of the Ag-Cu content,and the cell parameters were improved,among which the most important photoelectric conversion efficiency was increased by 5.65%.This verified that the use of cheaper Cu nanoparticles to replace part of the Ag nanoparticles was able to slightly improve the efficiency of the photoelectric conversion of the battery.

关 键 词：银铜纳米颗粒 绿色合成 丝网印刷 X线光电子能谱 太阳能电池 

分 类 号：TN384[电子电信—物理电子学]