Argon Plasma Treatment to Tune Perovskite Surface Composition for High Efficiency Solar Cells and Fast Photodetectors

Xun Xiao, Chunxiong Bao, Yanjun Fang, Jun Dai, Benjamin R. Ecker, Congcong Wang, Yuze Lin, Shi Tang, Ye Liu, Yehao Deng, Xiaopeng Zheng, Yongli Gao, Xiao C Zeng, Jinsong Huang

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The surface composition of perovskite films is very sensitive to film processing and can deviate from the optimal, which generates unfavorable defects and results in efficiency loss in solar cells and slow response speed in photodetectors. An argon plasma treatment is introduced to modify the surface composition by tuning the ratio of organic and inorganic components as well as defect type before deposition of the passivating layer. It can efficiently enhance the charge collection across the perovskite-electrode interface by suppressing charge recombination. Therefore, perovskite solar cells with argon plasma treatment yield enhanced efficiency to 20.4% and perovskite photodetectors can reach their fastest respond speed, which is solely limited by the carrier mobility.

Original languageEnglish (US)
JournalAdvanced Materials
DOIs
StateAccepted/In press - Jan 1 2018

Fingerprint

Argon
Photodetectors
Surface structure
Perovskite
Solar cells
Plasmas
Defects
Carrier mobility
Tuning
Electrodes
Processing
perovskite

Keywords

  • Argon plasma
  • Perovskites
  • Photodetectors
  • Solar cells

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Argon Plasma Treatment to Tune Perovskite Surface Composition for High Efficiency Solar Cells and Fast Photodetectors. / Xiao, Xun; Bao, Chunxiong; Fang, Yanjun; Dai, Jun; Ecker, Benjamin R.; Wang, Congcong; Lin, Yuze; Tang, Shi; Liu, Ye; Deng, Yehao; Zheng, Xiaopeng; Gao, Yongli; Zeng, Xiao C; Huang, Jinsong.

In: Advanced Materials, 01.01.2018.

Research output: Contribution to journalArticle

Xiao, X, Bao, C, Fang, Y, Dai, J, Ecker, BR, Wang, C, Lin, Y, Tang, S, Liu, Y, Deng, Y, Zheng, X, Gao, Y, Zeng, XC & Huang, J 2018, 'Argon Plasma Treatment to Tune Perovskite Surface Composition for High Efficiency Solar Cells and Fast Photodetectors', Advanced Materials. https://doi.org/10.1002/adma.201705176
Xiao, Xun ; Bao, Chunxiong ; Fang, Yanjun ; Dai, Jun ; Ecker, Benjamin R. ; Wang, Congcong ; Lin, Yuze ; Tang, Shi ; Liu, Ye ; Deng, Yehao ; Zheng, Xiaopeng ; Gao, Yongli ; Zeng, Xiao C ; Huang, Jinsong. / Argon Plasma Treatment to Tune Perovskite Surface Composition for High Efficiency Solar Cells and Fast Photodetectors. In: Advanced Materials. 2018.
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AU - Ecker, Benjamin R.

AU - Wang, Congcong

AU - Lin, Yuze

AU - Tang, Shi

AU - Liu, Ye

AU - Deng, Yehao

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