Spatial characterization techniques for dye-sensitized solar cells

M. Bokalič, U. Opara Krašovec, M. Hočevar, M. Topič
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引用次数: 2

Abstract

Spatial characterization techniques are applied to dye-sensitized solar cells (DSSCs). A comparison between transmittance imaging (TI), light-beam-induced-current (LBIC) scan and electroluminescence imaging is carried out. Detected types of inhomogeneities have different fingerprints by each applied technique. Electroluminescence (EL) is advantageous over TI because the electrical activity of the inhomogeneities influences the result. EL is also advantageous over the LBIC scan due to shorter acquisition time. Based on the above findings, EL has been used for characterization of DSSCs during outdoor short-term aging, showing that EL imaging is a proper method to follow the evolution of the inhomogeneities. Proof-of-concept EL inspection of a screen-printed dyesensitized solar module shows good uniformity.
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染料敏化太阳能电池的空间表征技术
空间表征技术应用于染料敏化太阳能电池(DSSCs)。对透射成像(TI)、光束感应电流扫描(LBIC)和电致发光成像进行了比较。检测到的不均匀性类型在不同的应用技术下具有不同的指纹。电致发光(EL)优于TI,因为不均匀性的电活动影响结果。由于采集时间较短,EL扫描也优于LBIC扫描。基于上述发现,我们利用EL对DSSCs进行了室外短期老化的表征,表明EL成像是一种跟踪不均匀性演变的合适方法。一个丝网印刷染料敏化太阳能组件的概念验证EL检查显示出良好的均匀性。
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