Sequential Deposition of High-Quality Photovoltaic Perovskite Layers via Scalable Printing Methods

Guo F, He W, Qiu S, Wang C, Liu X, Forberich K, Brabec C, Mai Y (2019)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2019

Journal

Advanced Functional Materials Wiley-VCH Verlag

Publisher: Wiley-VCH Verlag

Book Volume: 29

Article Number: 1900964

Journal Issue: 24

DOI: 10.1002/adfm.201900964

Abstract

Sequential deposition is demonstrated as an effective technology for preparation
of high-performance perovskite solar cells based on lab-scale spin coating.
However, devices fabricated by scalable methods are lagging far behind their
state-of-the-art spin-coated counterparts, largely due to the difficulty in obtaining
high-quality thin films of perovskites crystallized from printed precursors. Here,
a generic strategy that allows sequential deposition of dense and uniform
perovskite films via two-step blade coating is reported. The rational selection of
solvent combined with a mild vacuum extraction process enables us to produce
uniform lead iodide (PbI2) films over large areas. Significantly, the resulting
PbI2 films possess a mesoporous structure that is highly beneficial for the
insertion reaction with methylammonium iodide (MAI). It is further identified
that the deposition temperature of MAI plays an important role in determining
the morphology and crystallinity of the perovskite films. Solar cells using these
sequentially bladed perovskite layers yield efficiencies over 16% with high fill
factors up to 78%. These results represent important progress toward the largescale
deposition of perovskite thin films for practical applications

Authors with CRIS profile

Karen Forberich Institute Materials for Electronics and Energy Technology (i-MEET) Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

Jinan University CN China (CN) Zhengzhou University / 郑州大学 CN China (CN)

How to cite

APA:

Guo, F., He, W., Qiu, S., Wang, C., Liu, X., Forberich, K.,... Mai, Y. (2019). Sequential Deposition of High-Quality Photovoltaic Perovskite Layers via Scalable Printing Methods. Advanced Functional Materials, 29(24). https://dx.doi.org/10.1002/adfm.201900964

MLA:

Guo, Fei, et al. "Sequential Deposition of High-Quality Photovoltaic Perovskite Layers via Scalable Printing Methods." Advanced Functional Materials 29.24 (2019).

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