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

25 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

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

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

Access to Document

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.\}",

note = "Publisher Copyright: {\textcopyright} 2016 American Chemical Society.",

year = "2016",

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doi = "10.1021/acsami.6b01246",

language = "English",

volume = "8",

pages = "14301--14306",

journal = "ACS Applied Materials \& Interfaces",

issn = "1944-8244",

publisher = "American Chemical Society",

number = "23",

}

TY - JOUR

T1 - Tailoring Mixed-Halide, Wide-Gap Perovskites via Multistep Conversion Process

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

UR - https://www.scopus.com/pages/publications/84975222084

U2 - 10.1021/acsami.6b01246

DO - 10.1021/acsami.6b01246

M3 - Article

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JO - ACS Applied Materials & Interfaces

JF - ACS Applied Materials & Interfaces

IS - 23

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

Abstract

UN SDGs

Keywords

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