Introducing paired electric dipole layers for efficient and reproducible perovskite solar cells

Jong Hoon Lee, Junghwan Kim, Geunjin Kim, Dongguen Shin, Song Yi Jeong, Jinho Lee, Soonil Hong, Jin Woo Choi, Chang Lyoul Lee, Heejoo Kim, Yeonjin Yi, Kwanghee Lee

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Elimination of charge trapping at defects is highly challenging for poly-crystalline organometal halide perovskites. Here, we report a new architecture for reinforcing the built-in electric field (E in ) across the photoactive layer with a pair of strong electric dipole layers (EDLs). The paired EDLs significantly intensify the E in across the perovskite layer, resulting in suppressed charge trapping of photogenerated charges. As a result, our low-temperature processed P-I-N planar PeSC devices using the paired EDLs exhibit a higher power conversion efficiency (η max ∼ 19.4%) and a smaller device-to-device variation with a standard deviation (S.D.) of 0.70%, which far surpass those (η max ∼ 17.8%, S.D. ∼ 1.1%) of the devices with typical charge transport layers.

Original languageEnglish
Pages (from-to)1742-1751
Number of pages10
JournalEnergy and Environmental Science
Volume11
Issue number7
DOIs
Publication statusPublished - 2018 Jul

Fingerprint

Charge trapping
perovskite
Perovskite
Conversion efficiency
Charge transfer
Electric fields
Crystalline materials
Defects
trapping
halide
Temperature
defect
Perovskite solar cells
solar cell
electric field

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Pollution

Cite this

Lee, Jong Hoon ; Kim, Junghwan ; Kim, Geunjin ; Shin, Dongguen ; Jeong, Song Yi ; Lee, Jinho ; Hong, Soonil ; Choi, Jin Woo ; Lee, Chang Lyoul ; Kim, Heejoo ; Yi, Yeonjin ; Lee, Kwanghee. / Introducing paired electric dipole layers for efficient and reproducible perovskite solar cells. In: Energy and Environmental Science. 2018 ; Vol. 11, No. 7. pp. 1742-1751.
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Lee, JH, Kim, J, Kim, G, Shin, D, Jeong, SY, Lee, J, Hong, S, Choi, JW, Lee, CL, Kim, H, Yi, Y & Lee, K 2018, 'Introducing paired electric dipole layers for efficient and reproducible perovskite solar cells', Energy and Environmental Science, vol. 11, no. 7, pp. 1742-1751. https://doi.org/10.1039/c8ee00162f

Introducing paired electric dipole layers for efficient and reproducible perovskite solar cells. / Lee, Jong Hoon; Kim, Junghwan; Kim, Geunjin; Shin, Dongguen; Jeong, Song Yi; Lee, Jinho; Hong, Soonil; Choi, Jin Woo; Lee, Chang Lyoul; Kim, Heejoo; Yi, Yeonjin; Lee, Kwanghee.

In: Energy and Environmental Science, Vol. 11, No. 7, 07.2018, p. 1742-1751.

Research output: Contribution to journalArticle

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AU - Lee, Jong Hoon

AU - Kim, Junghwan

AU - Kim, Geunjin

AU - Shin, Dongguen

AU - Jeong, Song Yi

AU - Lee, Jinho

AU - Hong, Soonil

AU - Choi, Jin Woo

AU - Lee, Chang Lyoul

AU - Kim, Heejoo

AU - Yi, Yeonjin

AU - Lee, Kwanghee

PY - 2018/7

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