Morphology-photovoltaic property correlation in perovskite solar cells: One-step versus two-step deposition of CH3NH3PbI 3

Jeong Hyeok Im; Hui Seon Kim; Nam Gyu Park

doi:10.1063/1.4891275

Morphology-photovoltaic property correlation in perovskite solar cells: One-step versus two-step deposition of CH₃NH₃PbI ₃

Jeong Hyeok Im, Hui Seon Kim, Nam Gyu Park

Sungkyunkwan University

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

454 Scopus citations

Abstract

Perovskite CH₃NH₃PbI₃ light absorber is deposited on the mesoporous TiO₂ layer via one-step and two-step coating methods and their photovoltaic performances are compared. One-step coating using a solution containing CH₃NH₃I and PbI ₂ shows average power conversion efficiency (PCE) of 7.5%, while higher average PCE of 13.9% is obtained from two-step coating method, mainly due to higher voltage and fill factor. The coverage, pore-filling, and morphology of the deposited perovskite are found to be critical in photovoltaic performance of the mesoporous TiO₂ based perovskite solar cells.

Original language	English
Article number	081510
Journal	APL Materials
Volume	2
Issue number	8
DOIs	https://doi.org/10.1063/1.4891275
State	Published - Aug 2014
Externally published	Yes

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title = "Morphology-photovoltaic property correlation in perovskite solar cells: One-step versus two-step deposition of CH3NH3PbI 3",

abstract = "Perovskite CH3NH3PbI3 light absorber is deposited on the mesoporous TiO2 layer via one-step and two-step coating methods and their photovoltaic performances are compared. One-step coating using a solution containing CH3NH3I and PbI 2 shows average power conversion efficiency (PCE) of 7.5\%, while higher average PCE of 13.9\% is obtained from two-step coating method, mainly due to higher voltage and fill factor. The coverage, pore-filling, and morphology of the deposited perovskite are found to be critical in photovoltaic performance of the mesoporous TiO2 based perovskite solar cells.",

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AB - Perovskite CH3NH3PbI3 light absorber is deposited on the mesoporous TiO2 layer via one-step and two-step coating methods and their photovoltaic performances are compared. One-step coating using a solution containing CH3NH3I and PbI 2 shows average power conversion efficiency (PCE) of 7.5%, while higher average PCE of 13.9% is obtained from two-step coating method, mainly due to higher voltage and fill factor. The coverage, pore-filling, and morphology of the deposited perovskite are found to be critical in photovoltaic performance of the mesoporous TiO2 based perovskite solar cells.

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Morphology-photovoltaic property correlation in perovskite solar cells: One-step versus two-step deposition of CH₃NH₃PbI ₃

Abstract

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