Mechanically Recoverable and Highly Efficient Perovskite Solar Cells

Investigation of Intrinsic Flexibility of Organic-Inorganic Perovskite

Minwoo Park, Hae Jin Kim, Inyoung Jeong, Jinwoo Lee, Hyungsuk Lee, Hae Jung Son, Dae Eun Kim, Min Jae Ko

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

Highly efficient solar cells with sustainable performance under severe mechanical deformations are in great demand for future wearable power supply devices. In this regard, numerous studies have progressed to implement flexible architecture to high-performance devices such as perovskite solar cells. However, the absence of suitable flexible and stretchable materials has been a great obstacle in the replacement of largely utilized transparent conducting oxides that are limited in flexibility. Here, a shape recoverable polymer, Noland Optical Adhesive 63, is utilized as a substrate of perovskite solar cell to enable complete shape recovery of the device upon sub-millimeter bending radii. The employment of stretchable electrodes prevents mechanical damage of the perovskite layer. Before and after bending at a radius of 1 mm, power conversion efficiency (PCE) is measured to be 10.75% and 10.4%, respectively. Additionally, the shape recoverable device demonstrates a PCE of 6.07% after crumpling. The mechanical properties of all the layers are characterized by nanoindentation. Finite element analysis reveals that the outstanding flexibility of the perovskite layer enables small plastic strain distribution on the deformed device. These results clearly demonstrated that this device has great potential to be utilized in stretchable power supply applications. Indium tin oxide-free and shape-recoverable perovskite solar cells with a high-power conversion efficiency (PCE = 10.83%) and an excellent mechanical durability (PCE = 9.68% after 1000 bending cycle at r = 1 mm bending radius) is demonstrated. The mechanical behavior of intrinsically flexible and stretchable perovskite layer is thoroughly investigated by nanoindentation measurements and finite element analysis.

Original languageEnglish
Article number1501406
JournalAdvanced Energy Materials
Volume5
Issue number22
DOIs
Publication statusPublished - 2015 Jan 1

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Perovskite
Conversion efficiency
Nanoindentation
Finite element method
Tin oxides
Indium
Oxides
Plastic deformation
Solar cells
Polymers
Durability
Perovskite solar cells
perovskite
Recovery
Mechanical properties
Electrodes
Substrates

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

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title = "Mechanically Recoverable and Highly Efficient Perovskite Solar Cells: Investigation of Intrinsic Flexibility of Organic-Inorganic Perovskite",
abstract = "Highly efficient solar cells with sustainable performance under severe mechanical deformations are in great demand for future wearable power supply devices. In this regard, numerous studies have progressed to implement flexible architecture to high-performance devices such as perovskite solar cells. However, the absence of suitable flexible and stretchable materials has been a great obstacle in the replacement of largely utilized transparent conducting oxides that are limited in flexibility. Here, a shape recoverable polymer, Noland Optical Adhesive 63, is utilized as a substrate of perovskite solar cell to enable complete shape recovery of the device upon sub-millimeter bending radii. The employment of stretchable electrodes prevents mechanical damage of the perovskite layer. Before and after bending at a radius of 1 mm, power conversion efficiency (PCE) is measured to be 10.75{\%} and 10.4{\%}, respectively. Additionally, the shape recoverable device demonstrates a PCE of 6.07{\%} after crumpling. The mechanical properties of all the layers are characterized by nanoindentation. Finite element analysis reveals that the outstanding flexibility of the perovskite layer enables small plastic strain distribution on the deformed device. These results clearly demonstrated that this device has great potential to be utilized in stretchable power supply applications. Indium tin oxide-free and shape-recoverable perovskite solar cells with a high-power conversion efficiency (PCE = 10.83{\%}) and an excellent mechanical durability (PCE = 9.68{\%} after 1000 bending cycle at r = 1 mm bending radius) is demonstrated. The mechanical behavior of intrinsically flexible and stretchable perovskite layer is thoroughly investigated by nanoindentation measurements and finite element analysis.",
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Mechanically Recoverable and Highly Efficient Perovskite Solar Cells : Investigation of Intrinsic Flexibility of Organic-Inorganic Perovskite. / Park, Minwoo; Kim, Hae Jin; Jeong, Inyoung; Lee, Jinwoo; Lee, Hyungsuk; Son, Hae Jung; Kim, Dae Eun; Ko, Min Jae.

In: Advanced Energy Materials, Vol. 5, No. 22, 1501406, 01.01.2015.

Research output: Contribution to journalArticle

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T1 - Mechanically Recoverable and Highly Efficient Perovskite Solar Cells

T2 - Investigation of Intrinsic Flexibility of Organic-Inorganic Perovskite

AU - Park, Minwoo

AU - Kim, Hae Jin

AU - Jeong, Inyoung

AU - Lee, Jinwoo

AU - Lee, Hyungsuk

AU - Son, Hae Jung

AU - Kim, Dae Eun

AU - Ko, Min Jae

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