【作者】 王艳；

【导师】 陈国鹰；

【作者基本信息】 河北工业大学 ， 物理电子学， 2011， 硕士

【摘要】 随着国内外光伏技术的发展,加入光伏领域的研究机构和企业越来越多,尤其是地面光伏应用方面,太阳电池的应用范围已经从空间军事领域逐步扩展到了地面民用领域。在不久的将来,各种太阳电池必将大量涌现,届时电池性能和质量的评判就显得尤为重要。太阳能电池的室内输出特性直接影响到其户外表现,所以在室内对太阳电池进行测试、质量评判就显得极为重要。在室内模拟光源下可以直接测得太阳电池的包括效率在内的各个重要参数,它们是衡量太阳电池的性能优劣的关键指标。本文通过对GaAs太阳电池在有/无光照条件下的测量,分析了电池的光/暗特性曲线,并分别提取出了电池的几个重要的特征参数。通过暗特性的测量,我们可以找出生产过程中由于封装工艺过程和人为误操作出现的不合格产品;通过光特性的测量,则可以找出暗特性测量中检测不出来的不合格品,比如芯片的外延生长缺陷,并对电池进行标定。对比分析了光暗两种情况下太阳电池串并联电阻的计算方法,结果表明光照能使电池的串联电阻显著增加。搭建了一套模拟光源下的室内光特性测量系统,分析了GaAs电池在标准测试条件下的I-V、P-V特性曲线,得到了几个表征电池性能的特征参数。多次测量结果表明,在AM1.5标准条件下,太阳电池的光电转换效率为30%-32%。通过调整太阳模拟器的发光强度,模拟测量了高倍聚光条件下太阳电池的输出特性,研究了电池特征参数随着光强和工作温度的变化关系,对户外聚光条件下电池的特性研究提供理论参考。更多还原

【Abstract】 With the development of photovoltaic technology at home and abroad, more and more research institutions and enterprises have joined the field of photovoltaic, especially in terrestrial photovoltaic applications, gradually extended from space military field to ground civil field. In the near future, there will emerge large numbers of solar cells, the output characteristic and quality evaluation is particularly important then. Solar cell’s indoor output characteristics have direct impact on its outdoor performance. Therefore, the solar cell quality evaluation indoor becomes extremely important. Under the simulated light source, all the important parameters, including efficiency, of solar cells can be directly measured, which are key indicators to a solar cell.Based on the measurement of GaAs solar cell in both with and without light condition, its current-voltage curves have been analyzed, and several important parameters have been extracted from the curves. From dark IV test, the failure parts caused by packaging technology or man-made can be removed during production; from light IV test, the defective products, which can not be detected in the dark IV test, can be found out, such as chip’s epitaxial growth defects. Light IV test can calibrate the solar cell too.Build an indoor test system with a sun simulator, analysised the solar cell’s IV curve and PV curve under standard conditions, gained several important parameters resembling the solar cell’s performance. Many test data showed, the conversion efficiency of a GaAs solar cell is about 30%-32% under AM1.5 standard condition. By adjusting the solar simulator’s light intensity, simulated measured the output character under high concentration, studied the parameters dependence on the light intensity and work temperature, and provided theory reference to the outdoor test.更多还原