【摘要】 以Bi2O3、B2O3和SiO2为主要原料制备无铅玻璃粘合剂,将其与导电银(Ag)粉、Al2O3、MnO2等无机添加剂和α-松油醇等有机载体进行混合制备无铅导电银浆,在800℃的温度下烧结20s形成Ag电极。采用四点探针法测量Ag电极电阻率ρ,通过SEM观察其断面形貌并用Keithley2400数字源表测定电池的相关性能参数,研究了Ag电极中导电Ag粉含量对电极性能的影响,确定了无铅导电Ag浆的质量配比为:导电银粉75%,玻璃粘合剂(Glass frit,GF)4%,无机添加剂1%,有机载体20%时,Ag电极的电性能趋于最佳。更多还原

【Abstract】 Lead-free silver pastes were prepared through mixing lead-free glass frit which was fabricated with Bi2O3、B2O3 and SiO2 as the main raw materials,silver powder,inorganic additives such as Al2O3,MnO2 and so on,and organic carrier such as α-terpineol and so on.The lead-free paste was printed on silicon wafer and sintered under the temperature of 800℃ for 20s.The resistivity of the silver electrode was measured by four-point probe,the morphologies were observed by SEM,and the photovoltaic properties of solar cells were measured by Keithley 2400 under an illumination of AM1.5G.We investigated the influence of silver content on the electrical properties of silver electrode.The results show that the silver paste with 75% silver powder,4% lead-free glass frit,1% inorganic additives and 20% organic carrier yielded the best photovoltaic properties for solar cells.更多还原