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Fully-printable Hole-conductor-free Mesoscopic Perovskite Solar Cells Based on Mesoporous Anatase Single Crystals

Abstract

Mesoporous singe-crystal anatase provides large surface area and less carrier traps compared to polycrystal, however, it is generally prepared with a particle size in micrometers by a complex method, which hinders its application as electron transport materials (ETM) for mesoscopic perovskite solar cells (MPSCs). Herein, we fabricated small-sized mesoporous single-crystal anatase with a large surface area (169 m2/g) and an oliver-shape (about 120 nm in length and 60 nm in width) by a simple method and applied it as ETM into a hole-conductor-free fully printable MPSC. As expected, a high-quality film was formed and the device shows an obvious increase of efficiency than P25 (commercial TiO2) based device due to the faster electron extraction from perovskite to ETM. This suggests the mesoporous single crystal anatase is a promising ETM candidate for efficient fully-printable hole-conductor-free MPSCs.

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Publication details

The article was received on 16 Nov 2017, accepted on 07 Jan 2018 and first published on 08 Jan 2018


Article type: Paper
DOI: 10.1039/C7NJ04448H
Citation: New J. Chem., 2018, Accepted Manuscript
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    Fully-printable Hole-conductor-free Mesoscopic Perovskite Solar Cells Based on Mesoporous Anatase Single Crystals

    Y. Xiong, Y. Liu, K. Lan, A. Mei, Y. Sheng, D. Zhao and H. Han, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7NJ04448H

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