Tailoring Mixed-Halide, Wide-Gap Perovskites via Multistep Conversion Process

Dowon Bae; Axel Palmstrom; Katherine Roelofs; Bastian Mei; Ib Chorkendorff; Stacey F. Bent; Peter C.K. Vesborg

doi:10.1021/acsami.6b01246

Tailoring Mixed-Halide, Wide-Gap Perovskites via Multistep Conversion Process

Dowon Bae, Axel Palmstrom, Katherine Roelofs, Bastian Mei, Ib Chorkendorff, Stacey F. Bent^*, Peter C.K. Vesborg

^*Corresponding author for this work

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

24 Citations (Scopus)

Abstract

Wide-band-gap mixed-halide CH₃NH₃PbI_3-XBr_X-based solar cells have been prepared by means of a sequential spin-coating process. The spin-rate for PbI₂ as well as its repetitive deposition are important in determining the cross-sectional shape and surface morphology of perovskite, and, consequently, J-V performance. A perovskite solar cell converted from PbI₂ with a dense bottom layer and porous top layer achieved higher device performance than those of analogue cells with a dense PbI₂ top layer. This work demonstrates a facile way to control PbI₂ film configuration and morphology simply by modification of spin-coating parameters without any additional chemical or thermal post-treatment.

Original language	English
Pages (from-to)	14301-14306
Number of pages	6
Journal	ACS applied materials & interfaces
Volume	8
Issue number	23
DOIs	https://doi.org/10.1021/acsami.6b01246
Publication status	Published - 15 Jun 2016
Externally published	Yes

Keywords

Lead-halide
Multistep deposition
Organic-inorganic hybrids
Photovoltaics
Spin-coating
n/a OA procedure

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acsami.6b01246

Cite this

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title = "Tailoring Mixed-Halide, Wide-Gap Perovskites via Multistep Conversion Process",

abstract = "Wide-band-gap mixed-halide CH3NH3PbI3-XBrX-based solar cells have been prepared by means of a sequential spin-coating process. The spin-rate for PbI2 as well as its repetitive deposition are important in determining the cross-sectional shape and surface morphology of perovskite, and, consequently, J-V performance. A perovskite solar cell converted from PbI2 with a dense bottom layer and porous top layer achieved higher device performance than those of analogue cells with a dense PbI2 top layer. This work demonstrates a facile way to control PbI2 film configuration and morphology simply by modification of spin-coating parameters without any additional chemical or thermal post-treatment.",

keywords = "Lead-halide, Multistep deposition, Organic-inorganic hybrids, Photovoltaics, Spin-coating, n/a OA procedure",

author = "Dowon Bae and Axel Palmstrom and Katherine Roelofs and Bastian Mei and Ib Chorkendorff and Bent, {Stacey F.} and Vesborg, {Peter C.K.}",

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journal = "ACS applied materials & interfaces",

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AU - Bae, Dowon

AU - Palmstrom, Axel

AU - Roelofs, Katherine

AU - Mei, Bastian

AU - Chorkendorff, Ib

AU - Bent, Stacey F.

AU - Vesborg, Peter C.K.

PY - 2016/6/15

Y1 - 2016/6/15

N2 - Wide-band-gap mixed-halide CH3NH3PbI3-XBrX-based solar cells have been prepared by means of a sequential spin-coating process. The spin-rate for PbI2 as well as its repetitive deposition are important in determining the cross-sectional shape and surface morphology of perovskite, and, consequently, J-V performance. A perovskite solar cell converted from PbI2 with a dense bottom layer and porous top layer achieved higher device performance than those of analogue cells with a dense PbI2 top layer. This work demonstrates a facile way to control PbI2 film configuration and morphology simply by modification of spin-coating parameters without any additional chemical or thermal post-treatment.

AB - Wide-band-gap mixed-halide CH3NH3PbI3-XBrX-based solar cells have been prepared by means of a sequential spin-coating process. The spin-rate for PbI2 as well as its repetitive deposition are important in determining the cross-sectional shape and surface morphology of perovskite, and, consequently, J-V performance. A perovskite solar cell converted from PbI2 with a dense bottom layer and porous top layer achieved higher device performance than those of analogue cells with a dense PbI2 top layer. This work demonstrates a facile way to control PbI2 film configuration and morphology simply by modification of spin-coating parameters without any additional chemical or thermal post-treatment.

KW - Lead-halide

KW - Multistep deposition

KW - Organic-inorganic hybrids

KW - Photovoltaics

KW - Spin-coating

KW - n/a OA procedure

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Tailoring Mixed-Halide, Wide-Gap Perovskites via Multistep Conversion Process

Abstract

Keywords

UN SDGs

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