氧化钛层对聚合物电池的性能影响

Effect of TiO_x on The Performance of Polymer Solar Cells

在特定的薄膜工艺条件下制备了结构为铟锡氧化物(ITO)/聚3-己基噻吩(P3HT)/氧化钛(TiOx)/氧化钛纳米颗粒(TiOxnp)/铝(Al)的有机/无机异质结构太阳能电池。通过不同的TiOx前驱体制备了多种类型氧化钛层,并采用TiOx层掺杂研究其对器件性能的影响。实验结果表明:以有机物掺杂的TiOx为功能层的器件有较好的开路电压,但相应的短路电流较低。研究了器件低温退火及TiOx层厚度调控对器件性能的影响,从而确定了器件的优化条件。采用常温技术制备了TiOx前驱体溶液,简化了工艺流程。

The structure of ITO/P3HT/TiOx/TiOx nanoparticle/alheterojunction organic solar cell was fabricated by the specific film technology. Titanium oxide layers were made by using different TiO precursors. The effect of the TiOx layer on the performance of the solar cells was studied. We found that the devices made by the TiOx layers mixed with organics result in effective open-circuit voltage but correspondingly lower short-circuit current. The effection of low temperature annealing and thickness optimization of TiOx layers on the performance of devices was studied. Applying room temperature technology to prepare TiOx precursor solution not only gets the excellent results but also simplifies the process.