Controllable Sequential Deposition of Planar CH3NH3PbI3 Perovskite via Adjustable Volume Expansion

Kai Zhu; Taiyang Zhang; Yixin Zhao; Mengjin Yang

doi:10.1021/acs.nanolett.5b00843

Controllable Sequential Deposition of Planar CH3NH3PbI3 Perovskite via Adjustable Volume Expansion

Kai Zhu, Taiyang Zhang, Yixin Zhao, Mengjin Yang

Chemistry and Nanoscience

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

259 Scopus Citations

Abstract

We demonstrate a facile morphology-controllable sequential deposition of planar CH₃NH₃PbI₃ (MAPbI₃) film by using a novel volume-expansion-adjustable PbI₂·xMAI (x: 0.1-0.3) precursor film to replace pure PbI₂. The use of additive MAI during the first step of deposition leads to the reduced crystallinity of PbI₂ and the pre-expansion of PbI₂ into PbI₂·xMAI with adjustable morphology, which result in about 10-fold faster formation of planar MAPbI₃ film (without PbI₂ residue) and thus minimize the negative impact of the solvent isopropanol on perovskites during the MAI intercalation/conversion step. The best efficiency obtained for a planar perovskite solar cell based on PbI₂·0.15MAI is 17.22% (under one sun illumination), which is consistent with the stabilized maximum power output at an efficiency of 16.9%. (Graph Presented).

Original language	American English
Pages (from-to)	3959-3963
Number of pages	5
Journal	Nano Letters
Volume	15
Issue number	6
DOIs	https://doi.org/10.1021/acs.nanolett.5b00843 https://doi.org/10.1021/acs.nanolett.5b00843
State	Published - 10 Jun 2015

Bibliographical note

Publisher Copyright:
© 2015 American Chemical Society.

NREL Publication Number

NREL/JA-5900-63455

Keywords

perovskite
sequential deposition
solar cells
volume expansion

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title = "Controllable Sequential Deposition of Planar CH3NH3PbI3 Perovskite via Adjustable Volume Expansion",

abstract = "We demonstrate a facile morphology-controllable sequential deposition of planar CH3NH3PbI3 (MAPbI3) film by using a novel volume-expansion-adjustable PbI2·xMAI (x: 0.1-0.3) precursor film to replace pure PbI2. The use of additive MAI during the first step of deposition leads to the reduced crystallinity of PbI2 and the pre-expansion of PbI2 into PbI2·xMAI with adjustable morphology, which result in about 10-fold faster formation of planar MAPbI3 film (without PbI2 residue) and thus minimize the negative impact of the solvent isopropanol on perovskites during the MAI intercalation/conversion step. The best efficiency obtained for a planar perovskite solar cell based on PbI2·0.15MAI is 17.22% (under one sun illumination), which is consistent with the stabilized maximum power output at an efficiency of 16.9%. (Graph Presented).",

keywords = "perovskite, sequential deposition, solar cells, volume expansion",

author = "Kai Zhu and Taiyang Zhang and Yixin Zhao and Mengjin Yang",

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year = "2015",

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doi = "10.1021/acs.nanolett.5b00843",

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T1 - Controllable Sequential Deposition of Planar CH3NH3PbI3 Perovskite via Adjustable Volume Expansion

AU - Zhu, Kai

AU - Zhang, Taiyang

AU - Zhao, Yixin

AU - Yang, Mengjin

PY - 2015/6/10

Y1 - 2015/6/10

N2 - We demonstrate a facile morphology-controllable sequential deposition of planar CH3NH3PbI3 (MAPbI3) film by using a novel volume-expansion-adjustable PbI2·xMAI (x: 0.1-0.3) precursor film to replace pure PbI2. The use of additive MAI during the first step of deposition leads to the reduced crystallinity of PbI2 and the pre-expansion of PbI2 into PbI2·xMAI with adjustable morphology, which result in about 10-fold faster formation of planar MAPbI3 film (without PbI2 residue) and thus minimize the negative impact of the solvent isopropanol on perovskites during the MAI intercalation/conversion step. The best efficiency obtained for a planar perovskite solar cell based on PbI2·0.15MAI is 17.22% (under one sun illumination), which is consistent with the stabilized maximum power output at an efficiency of 16.9%. (Graph Presented).

AB - We demonstrate a facile morphology-controllable sequential deposition of planar CH3NH3PbI3 (MAPbI3) film by using a novel volume-expansion-adjustable PbI2·xMAI (x: 0.1-0.3) precursor film to replace pure PbI2. The use of additive MAI during the first step of deposition leads to the reduced crystallinity of PbI2 and the pre-expansion of PbI2 into PbI2·xMAI with adjustable morphology, which result in about 10-fold faster formation of planar MAPbI3 film (without PbI2 residue) and thus minimize the negative impact of the solvent isopropanol on perovskites during the MAI intercalation/conversion step. The best efficiency obtained for a planar perovskite solar cell based on PbI2·0.15MAI is 17.22% (under one sun illumination), which is consistent with the stabilized maximum power output at an efficiency of 16.9%. (Graph Presented).

KW - perovskite

KW - sequential deposition

KW - solar cells

KW - volume expansion

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U2 - 10.1021/acs.nanolett.5b00843

DO - 10.1021/acs.nanolett.5b00843

M3 - Article

AN - SCOPUS:84935919048

SN - 1530-6984

VL - 15

SP - 3959

EP - 3963

JO - Nano Letters

JF - Nano Letters

IS - 6

ER -

Controllable Sequential Deposition of Planar CH3NH3PbI3 Perovskite via Adjustable Volume Expansion

Abstract

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NREL Publication Number

Keywords

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