Retarding Crystallization during Facile Single Coating of NaCl-Incorporated Precursor Solution for Efficient Large-Area Uniform Perovskite Solar Cells

Hongseuk Lee, Areum Kim, Hyeok Chan Kwon, Wooseok Yang, Yunjung Oh, Daehee Lee, Joo Ho Moon

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We demonstrated crystallization retardation of CH 3 NH 3 PbI 3 thin film during single coating of precursor solution by simple addition of NaCl. NaCl was codissolved into a precursor mixture solution containing PbI 2 and methylammonium iodide (MAI). Dissolved NaCl interacted with the PbI 2 in solution and produced a stable intermediate phase, which was converted to a full-coverage uniform perovskite absorber layer via reaction with MAI during a single spin-coating. The resulting planar-structure perovskite solar cell made from NaCl-supplemented precursor solution showed a 48% improvement in power conversion efficiency (PCE) (maximum value 15.16%) over the device fabricated without the additive. Our NaCl-supplemented single coating represents an easy approach to effectively obtain highly reproducible uniform performance at an overall position in 5 cm × 5 cm sized cells (divided into 20 subcells with an active area of 0.06 cm 2 ) with average PCEs of 12.00 ± 0.48%.

Original languageEnglish
Pages (from-to)29419-29426
Number of pages8
JournalACS Applied Materials and Interfaces
Volume8
Issue number43
DOIs
Publication statusPublished - 2016 Nov 2

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Crystallization
Coatings
Iodides
Spin coating
Perovskite
Conversion efficiency
Thin films
Perovskite solar cells
methylamine

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Lee, Hongseuk ; Kim, Areum ; Kwon, Hyeok Chan ; Yang, Wooseok ; Oh, Yunjung ; Lee, Daehee ; Moon, Joo Ho. / Retarding Crystallization during Facile Single Coating of NaCl-Incorporated Precursor Solution for Efficient Large-Area Uniform Perovskite Solar Cells. In: ACS Applied Materials and Interfaces. 2016 ; Vol. 8, No. 43. pp. 29419-29426.
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Retarding Crystallization during Facile Single Coating of NaCl-Incorporated Precursor Solution for Efficient Large-Area Uniform Perovskite Solar Cells. / Lee, Hongseuk; Kim, Areum; Kwon, Hyeok Chan; Yang, Wooseok; Oh, Yunjung; Lee, Daehee; Moon, Joo Ho.

In: ACS Applied Materials and Interfaces, Vol. 8, No. 43, 02.11.2016, p. 29419-29426.

Research output: Contribution to journalArticle

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AU - Lee, Hongseuk

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AU - Kwon, Hyeok Chan

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AU - Oh, Yunjung

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AU - Moon, Joo Ho

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