All-solid-state quantum-dot-sensitized solar cells with compact PbS quantum-dot thin films and TiO2 nanorod arrays

作者：Zhang, Zhengguo; Shi, Chengwu^*; Xiao, Guannan; Lv, Kai; Ma, Chengfeng; Yue, Jiangyu

来源：Ceramics International, 2017, 43(13): 10052-10056.

DOI：10.1016/j.ceramint.2017.05.022

• Compact PbS quantum-dot thin film
• TiO2 nanorod array
• 1,2-ethanedithiol
• All-solid-state quantum-dot-sensitized solar cell

To improve the electron injection efficiency from PbS quantum dots to TiO2 nanorods and prevent the direct contact of spiro-OMeTAD and TiO2 nanorods, a compact PbS quantum-dot thin film can be successfully obtained on TiO2 nanorod arrays 360 nm in length by repeated spin coating of Pb(Ac)(2), Na2S and 1,2ethanedithiol solution in a step-by-step process. The corresponding solid-state quantum-dot-sensitized solar cells are fabricated using a novel structured FTO/compact PbS quantum-dot thin film sensitized TiO2 nanorod array/spiro-OMeTAD/Au that achieves a photoelectric conversion efficiency of 3.57% under AM 1.5 G illumination (100 mW cm(-2)), which represents a high value among all -solid-state PbS quantum-dot-sensitized TiO2 nanorod array solar cells.

• 出版日期2017-9
• 单位北方民族大学; 合肥工业大学