Improved conversion efficiency in dye-sensitized solar cells based on electrospun Al-doped ZnO nanofiber electrodes prepared by seed layer treatment
Improved conversion efficiency in dye-sensitized solar cells based on electrospun Al-doped ZnO nanofiber electrodes prepared by seed layer treatment
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DOI：
10.1016/j.jssc.2010.11.024
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发表时间：
2011-02
影响因子：
3.3
通讯作者：
Sining Yun;Sangwoo Lim
中科院分区：
文献类型：
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作者：
Sining Yun;Sangwoo Lim
电纺纳米纤维在电子器件中的应用受到了限制，因为它们与导电衬底的附着力较差。为了改善这一点，在静电纺复合纳米纤维沉积之前，在FTO衬底上引入了种子层（SD）。这有助于在煅烧过程中释放界面拉伸应力，增强AZO纳米纤维薄膜与FTO衬底的界面附着力。基于这些偶氮纳米纤维光电极制备了染料敏化太阳能电池（DSSC）。在AM 1.5模拟太阳光（100mW/cm2）照射下，得到了0.54-0.55%的能量转换效率（η），表明与未处理相比，FTO衬底经过sd处理后AZO纳米纤维膜DSSCs的η显著提高。sd处理已被证明是一种简单易行的方法来解决静电纺纳米纤维与导电衬底之间粘附不良的问题。
The application of electrospun nanofibers in electronic devices is limited due to their poor adhesion to conductive substrates. To improve this, a seed layer (SD) is introduced on the FTO substrate before the deposition of the electrospun composite nanofibers. This facilitates the release of interfacial tensile stress during calcination and enhances the interfacial adhesion of the AZO nanofiber films with the FTO substrate. Dye-sensitized solar cells (DSSC) based on these AZO nanofiber photoelectrodes have been fabricated and investigated. An energy conversion efficiency (η) of 0.54–0.55% has been obtained under irradiation of AM 1.5 simulated sunlight (100mW/cm2), indicating a massive improvement of η in the AZO nanofiber film DSSCs after SD-treatment of the FTO substrate as compared to those with no treatment. The SD-treatment has been demonstrated to be a simple and facile method to solve the problem of poor adhesion between electrospun nanofibers and the conductive substrate.