300% Enhancement of Carrier Mobility in Uniaxial-Oriented Perovskite Films Formed by Topotactic-Oriented Attachment

Dong Hoe Kim; Jaehong Park; Zhen Li; Mengjin Yang; Ji Sang Park; Ik Jae Park; Jin Young Kim; Joseph J. Berry; Garry Rumbles; Kai Zhu

doi:10.1002/adma.201606831

300% Enhancement of Carrier Mobility in Uniaxial-Oriented Perovskite Films Formed by Topotactic-Oriented Attachment

Dong Hoe Kim, Jaehong Park, Zhen Li, Mengjin Yang, Ji Sang Park, Ik Jae Park, Jin Young Kim, Joseph J. Berry, Garry Rumbles, Kai Zhu

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

131 Scopus citations

Abstract

Organic–inorganic perovskites with intriguing optical and electrical properties have attracted significant research interests due to their excellent performance in optoelectronic devices. Recent efforts on preparing uniform and large-grain polycrystalline perovskite films have led to enhanced carrier lifetime up to several microseconds. However, the mobility and trap densities of polycrystalline perovskite films are still significantly behind their single-crystal counterparts. Here, a facile topotactic-oriented attachment (TOA) process to grow highly oriented perovskite films, featuring strong uniaxial-crystallographic texture, micrometer-grain morphology, high crystallinity, low trap density (≈4 × 10¹⁴ cm⁻³), and unprecedented 9 GHz charge-carrier mobility (71 cm² V⁻¹ s⁻¹), is demonstrated. TOA-perovskite-based n-i-p planar solar cells show minimal discrepancies between stabilized efficiency (19.0%) and reverse-scan efficiency (19.7%). The TOA process is also applicable for growing other state-of-the-art perovskite alloys, including triple-cation and mixed-halide perovskites.

Original language	English
Article number	1606831
Journal	Advanced Materials
Volume	29
Issue number	23
DOIs	https://doi.org/10.1002/adma.201606831
State	Published - 20 Jun 2017

Bibliographical note

Funding Information:
D.H.K. and J.P. contributed equally to this work. The work at the National Renewable Energy Laboratory was supported by the U.S. Department of Energy under Contract No. DE-AC36-08GO28308. K.Z. and D.H.K. acknowledge the support from the U.S. DOE SunShot Initiative under the Next Generation Photovoltaics 3 program (DE-FOA-0000990). G.R. and J.P. acknowledge support from the Solar Photochemistry program within the U.S. DOE, Office of Basic Sciences, Office of Science. J.J.B., Z.L., and M.Y. acknowledge the support by the hybrid perovskite solar cell program of the National Center for Photovoltaics funded by the U.S. DOE, Office of Energy Efficiency and Renewable Energy, Solar Energy Technologies Office. J.Y.K. and I.J.P. acknowledge the support from the Nano Material Technology Development program (2012M3A7B4049989) of the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning.

Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

carrier mobility
orientation
perovskite films
solar cells
topotactic-oriented attachment

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title = "300% Enhancement of Carrier Mobility in Uniaxial-Oriented Perovskite Films Formed by Topotactic-Oriented Attachment",

abstract = "Organic–inorganic perovskites with intriguing optical and electrical properties have attracted significant research interests due to their excellent performance in optoelectronic devices. Recent efforts on preparing uniform and large-grain polycrystalline perovskite films have led to enhanced carrier lifetime up to several microseconds. However, the mobility and trap densities of polycrystalline perovskite films are still significantly behind their single-crystal counterparts. Here, a facile topotactic-oriented attachment (TOA) process to grow highly oriented perovskite films, featuring strong uniaxial-crystallographic texture, micrometer-grain morphology, high crystallinity, low trap density (≈4 × 1014 cm−3), and unprecedented 9 GHz charge-carrier mobility (71 cm2 V−1 s−1), is demonstrated. TOA-perovskite-based n-i-p planar solar cells show minimal discrepancies between stabilized efficiency (19.0%) and reverse-scan efficiency (19.7%). The TOA process is also applicable for growing other state-of-the-art perovskite alloys, including triple-cation and mixed-halide perovskites.",

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author = "Kim, {Dong Hoe} and Jaehong Park and Zhen Li and Mengjin Yang and Park, {Ji Sang} and Park, {Ik Jae} and Kim, {Jin Young} and Berry, {Joseph J.} and Garry Rumbles and Kai Zhu",

note = "Funding Information: D.H.K. and J.P. contributed equally to this work. The work at the National Renewable Energy Laboratory was supported by the U.S. Department of Energy under Contract No. DE-AC36-08GO28308. K.Z. and D.H.K. acknowledge the support from the U.S. DOE SunShot Initiative under the Next Generation Photovoltaics 3 program (DE-FOA-0000990). G.R. and J.P. acknowledge support from the Solar Photochemistry program within the U.S. DOE, Office of Basic Sciences, Office of Science. J.J.B., Z.L., and M.Y. acknowledge the support by the hybrid perovskite solar cell program of the National Center for Photovoltaics funded by the U.S. DOE, Office of Energy Efficiency and Renewable Energy, Solar Energy Technologies Office. J.Y.K. and I.J.P. acknowledge the support from the Nano Material Technology Development program (2012M3A7B4049989) of the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning. Publisher Copyright: {\textcopyright} 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

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doi = "10.1002/adma.201606831",

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AU - Park, Ji Sang

AU - Park, Ik Jae

AU - Kim, Jin Young

AU - Berry, Joseph J.

AU - Rumbles, Garry

AU - Zhu, Kai

N1 - Funding Information: D.H.K. and J.P. contributed equally to this work. The work at the National Renewable Energy Laboratory was supported by the U.S. Department of Energy under Contract No. DE-AC36-08GO28308. K.Z. and D.H.K. acknowledge the support from the U.S. DOE SunShot Initiative under the Next Generation Photovoltaics 3 program (DE-FOA-0000990). G.R. and J.P. acknowledge support from the Solar Photochemistry program within the U.S. DOE, Office of Basic Sciences, Office of Science. J.J.B., Z.L., and M.Y. acknowledge the support by the hybrid perovskite solar cell program of the National Center for Photovoltaics funded by the U.S. DOE, Office of Energy Efficiency and Renewable Energy, Solar Energy Technologies Office. J.Y.K. and I.J.P. acknowledge the support from the Nano Material Technology Development program (2012M3A7B4049989) of the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning. Publisher Copyright: © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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N2 - Organic–inorganic perovskites with intriguing optical and electrical properties have attracted significant research interests due to their excellent performance in optoelectronic devices. Recent efforts on preparing uniform and large-grain polycrystalline perovskite films have led to enhanced carrier lifetime up to several microseconds. However, the mobility and trap densities of polycrystalline perovskite films are still significantly behind their single-crystal counterparts. Here, a facile topotactic-oriented attachment (TOA) process to grow highly oriented perovskite films, featuring strong uniaxial-crystallographic texture, micrometer-grain morphology, high crystallinity, low trap density (≈4 × 1014 cm−3), and unprecedented 9 GHz charge-carrier mobility (71 cm2 V−1 s−1), is demonstrated. TOA-perovskite-based n-i-p planar solar cells show minimal discrepancies between stabilized efficiency (19.0%) and reverse-scan efficiency (19.7%). The TOA process is also applicable for growing other state-of-the-art perovskite alloys, including triple-cation and mixed-halide perovskites.

AB - Organic–inorganic perovskites with intriguing optical and electrical properties have attracted significant research interests due to their excellent performance in optoelectronic devices. Recent efforts on preparing uniform and large-grain polycrystalline perovskite films have led to enhanced carrier lifetime up to several microseconds. However, the mobility and trap densities of polycrystalline perovskite films are still significantly behind their single-crystal counterparts. Here, a facile topotactic-oriented attachment (TOA) process to grow highly oriented perovskite films, featuring strong uniaxial-crystallographic texture, micrometer-grain morphology, high crystallinity, low trap density (≈4 × 1014 cm−3), and unprecedented 9 GHz charge-carrier mobility (71 cm2 V−1 s−1), is demonstrated. TOA-perovskite-based n-i-p planar solar cells show minimal discrepancies between stabilized efficiency (19.0%) and reverse-scan efficiency (19.7%). The TOA process is also applicable for growing other state-of-the-art perovskite alloys, including triple-cation and mixed-halide perovskites.

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300% Enhancement of Carrier Mobility in Uniaxial-Oriented Perovskite Films Formed by Topotactic-Oriented Attachment

Abstract

Bibliographical note

Keywords

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