Highly flexible InSnO electrodes on thin colourless polyimide substrate for high-performance flexible CH3NH3PbI3 perovskite solar cells

Jeong Il Park, Jin Hyuck Heo, Sung Hyun Park, Ki Il Hong, Hak Gee Jeong, Sang Hyuk Im, Han Ki Kim

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

We fabricated high-performance flexible CH3NH3PbI3 (MAPbI3) perovskite solar cells with a power conversion efficiency of 15.5% on roll-to-roll sputtered ITO films on 60 μm-thick colourless polyimide (CPI) substrate. Due to the thermal stability of the CPI substrate, an ITO/CPI sample subjected to rapid thermal annealing at 300 °C showed a low sheet resistance of 57.8 Ω/square and high transmittance of 83.6%, which are better values than those of an ITO/PET sample. Outer and inner bending tests demonstrated that the mechanical flexibility of the ITO/CPI was superior to that of the conventional ITO/PET sample owing to the thinness of the CPI substrate. In addition, due to its good mechanical flexibility, the ITO/CPI showed no change in resistance after 10,000 cycle outer and inner dynamic fatigue tests. Flexible perovskite solar cells with the structure of Au/PTAA/MAPbI3/ZnO/ITO/CPI showed a high power conversion efficiency of 15.5%. The successful operation of these flexible perovskite solar cells on ITO/CPI substrate indicated that the ITO film on thermally stable CPI substrate is a promising of flexible substrate for high-temperature processing, a finding likely to advance the commercialization of cost-efficient flexible perovskite solar cells.

Original languageEnglish
Pages (from-to)340-347
Number of pages8
JournalJournal of Power Sources
Volume341
DOIs
Publication statusPublished - 2017 Feb 15
Externally publishedYes

Fingerprint

ITO (semiconductors)
polyimides
Polyimides
solar cells
Electrodes
electrodes
Substrates
Conversion efficiency
flexibility
Perovskite solar cells
commercialization
fatigue tests
Rapid thermal annealing
Sheet resistance
Bending tests
transmittance
Thermodynamic stability
thermal stability
Fatigue of materials
costs

Keywords

  • CHNHPbI
  • Colourless polyimide
  • ITO
  • Perovskite solar cells
  • Roll to roll
  • Thermal stability

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Highly flexible InSnO electrodes on thin colourless polyimide substrate for high-performance flexible CH3NH3PbI3 perovskite solar cells. / Park, Jeong Il; Heo, Jin Hyuck; Park, Sung Hyun; Hong, Ki Il; Jeong, Hak Gee; Im, Sang Hyuk; Kim, Han Ki.

In: Journal of Power Sources, Vol. 341, 15.02.2017, p. 340-347.

Research output: Contribution to journalArticle

Park, Jeong Il ; Heo, Jin Hyuck ; Park, Sung Hyun ; Hong, Ki Il ; Jeong, Hak Gee ; Im, Sang Hyuk ; Kim, Han Ki. / Highly flexible InSnO electrodes on thin colourless polyimide substrate for high-performance flexible CH3NH3PbI3 perovskite solar cells. In: Journal of Power Sources. 2017 ; Vol. 341. pp. 340-347.
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