An Air Knife–Assisted Recrystallization Method for Ambient-Process Planar Perovskite Solar Cells and Its Dim-Light Harvesting

Rui Cheng; Chih-Chun Chung; Hong Zhang; Zhiwen Zhou; Peng Zhai; Yu-Ting Huang; Hyeonseok Lee; Shien-Ping Feng

doi:10.1002/smll.201804465

An Air Knife–Assisted Recrystallization Method for Ambient-Process Planar Perovskite Solar Cells and Its Dim-Light Harvesting

Rui Cheng
, Chih-Chun Chung
, Hong Zhang
, Zhiwen Zhou
, Peng Zhai
, Yu-Ting Huang
, Hyeonseok Lee
, Shien-Ping Feng^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

49 Citations (Scopus)

Abstract

The photovoltaic performance of perovskite solar cells is highly dependent on the control of morphology and crystallization of perovskite film, which usually requires a controlled atmosphere. Therefore, fully ambient fabrication is a desired technology for the development of perovskite solar cells toward real production. Here, an air-knife assisted recrystallization method is reported, based on a simple bath-immersion to prepare high-quality perovskite absorbers. The resulted film shows a strong crystallinity with pure domains and low trap-state density, which contribute to the device performance and stability. The proposed method can operate in a wide process window, such as variable relative humidity and bath-immersion conditions, demonstrating a power conversion efficiency over 19% and 27% under 1 sun and 500–2000 lux dim-light illumination respectively, which is among the highest performance of ambient-process perovskite solar cells.

Original language	English
Article number	1804465
Journal	Small
Volume	15
Issue number	8
DOIs	https://doi.org/10.1002/smll.201804465
Publication status	Published - 22 Feb 2019
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

air–knife
ambient process
dim lights
perovskites
recrystallization

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title = "An Air Knife–Assisted Recrystallization Method for Ambient-Process Planar Perovskite Solar Cells and Its Dim-Light Harvesting",

abstract = "The photovoltaic performance of perovskite solar cells is highly dependent on the control of morphology and crystallization of perovskite film, which usually requires a controlled atmosphere. Therefore, fully ambient fabrication is a desired technology for the development of perovskite solar cells toward real production. Here, an air-knife assisted recrystallization method is reported, based on a simple bath-immersion to prepare high-quality perovskite absorbers. The resulted film shows a strong crystallinity with pure domains and low trap-state density, which contribute to the device performance and stability. The proposed method can operate in a wide process window, such as variable relative humidity and bath-immersion conditions, demonstrating a power conversion efficiency over 19\% and 27\% under 1 sun and 500–2000 lux dim-light illumination respectively, which is among the highest performance of ambient-process perovskite solar cells.",

keywords = "air–knife, ambient process, dim lights, perovskites, recrystallization",

author = "Rui Cheng and Chih-Chun Chung and Hong Zhang and Zhiwen Zhou and Peng Zhai and Yu-Ting Huang and Hyeonseok Lee and Shien-Ping Feng",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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T1 - An Air Knife–Assisted Recrystallization Method for Ambient-Process Planar Perovskite Solar Cells and Its Dim-Light Harvesting

AU - Cheng, Rui

AU - Chung, Chih-Chun

AU - Zhang, Hong

AU - Zhou, Zhiwen

AU - Zhai, Peng

AU - Huang, Yu-Ting

AU - Lee, Hyeonseok

AU - Feng, Shien-Ping

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2019/2/22

Y1 - 2019/2/22

N2 - The photovoltaic performance of perovskite solar cells is highly dependent on the control of morphology and crystallization of perovskite film, which usually requires a controlled atmosphere. Therefore, fully ambient fabrication is a desired technology for the development of perovskite solar cells toward real production. Here, an air-knife assisted recrystallization method is reported, based on a simple bath-immersion to prepare high-quality perovskite absorbers. The resulted film shows a strong crystallinity with pure domains and low trap-state density, which contribute to the device performance and stability. The proposed method can operate in a wide process window, such as variable relative humidity and bath-immersion conditions, demonstrating a power conversion efficiency over 19% and 27% under 1 sun and 500–2000 lux dim-light illumination respectively, which is among the highest performance of ambient-process perovskite solar cells.

AB - The photovoltaic performance of perovskite solar cells is highly dependent on the control of morphology and crystallization of perovskite film, which usually requires a controlled atmosphere. Therefore, fully ambient fabrication is a desired technology for the development of perovskite solar cells toward real production. Here, an air-knife assisted recrystallization method is reported, based on a simple bath-immersion to prepare high-quality perovskite absorbers. The resulted film shows a strong crystallinity with pure domains and low trap-state density, which contribute to the device performance and stability. The proposed method can operate in a wide process window, such as variable relative humidity and bath-immersion conditions, demonstrating a power conversion efficiency over 19% and 27% under 1 sun and 500–2000 lux dim-light illumination respectively, which is among the highest performance of ambient-process perovskite solar cells.

KW - air–knife

KW - ambient process

KW - dim lights

KW - perovskites

KW - recrystallization

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U2 - 10.1002/smll.201804465

DO - 10.1002/smll.201804465

M3 - RGC 21 - Publication in refereed journal

C2 - 30690887

SN - 1613-6810

VL - 15

JO - Small

JF - Small

IS - 8

M1 - 1804465

ER -

An Air Knife–Assisted Recrystallization Method for Ambient-Process Planar Perovskite Solar Cells and Its Dim-Light Harvesting

Abstract

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Research Keywords

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