【摘要】 复合电流是液相外延GaAs太阳电池暗电流的主要成分。扫描电镜观察表明,旁路电流主要来源于太阳电池结区的杂质。串联电阻主要来源于电池p型GaAs层的薄层电阻及正面电极的体电阻。串联电阻降低了电池的短路电流,旁路电阻降低了电池的开路电压。减小电池p-GaAs层的薄层电阻是提高电池效率的重要途径。更多还原

【Abstract】 The recombination current is the main part of the dark current of LPE GaAs solar cells. The results of SEM show that shunt resistance is due to the impurities in the junction of the solar cells. Series resistance reduces short current and shunt resistance reduces open voltage. Reducing the sheet resistance of the ptype layers of GaAs solar cells is an important way to improve the efficiency of solar cells.更多还原