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A low-temperature and facile solution-processed two-dimensional TiS2 as an effective electron transport layer for UV-stable planar perovskite solar cell

Abstract

The charge transport layers (CTLs) play a great role in achieving high efficient and stable perovskite solar cells (PSCs). Recently, two-dimensional (2D) materials with high mobility have been proved to be good candidate for CTLs in PSCs. Here, 2D-TiS2 nanosheets are prepared by a simple solution exfoliation method. It is demonstrated that 2D-TiS2 can be applied as an effective electron transport layer in planer PSCs for the first time. Using TiS2 film prepared by solution with the optimized concentration, PSCs show the high power conversion efficiency (PCE) of 17.37%. Benefiting from the merits of solution processability, low temperature, high mobility and suitable energy level, the proposed TiS2 fabrication method could aid scalable production of PSCs with high efficiency and excellent UV stability. Moreover, such a facile and low-temperature film retreatment approach guarantees the application of TiS2 as ETL in flexible devices.

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Publication details

The article was received on 03 Feb 2018, accepted on 11 Apr 2018 and first published on 13 Apr 2018


Article type: Paper
DOI: 10.1039/C8TA01143E
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    A low-temperature and facile solution-processed two-dimensional TiS2 as an effective electron transport layer for UV-stable planar perovskite solar cell

    G. Yin, H. Zhao, J. Feng, J. Sun, J. Yan, Z. Liu, S. LIN and S. Liu, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA01143E

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