Enhancement of organic solar cell efficiency by patterning the PEDOT

PSS hole transport layer using nanoimprint lithography

Je Hong Choi, Hak Jong Choi, Ju Hyeon Shin, Hyeong Pil Kim, Jin Jang, Heon Lee

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

In order to improve the conversion efficiency of organic photovoltaic (OPV) cells, nano-patterned poly (3,4-ethylenedioxythiophene) poly (styrenesulfonate) (PEDOT:PSS) was used as a hole transfer layer (HTL). Using nanoimprint lithography, a process that is easily applied to large-area substrates, a spherical array of PEDOT:PSS droplets was formed. The effect of the PEDOT:PSS nanostructure was characterized by optical and electrical measurements. Because the hemispherical array of PEDOT:PSS scatters light efficiently, absorption of the incident light increases when the nanostructured layer is employed. The conversion efficiency of the nano-patterned OPV cells is 25% larger than that of non-patterned OPV cells, due to the increase in short-circuit current (J sc).

Original languageEnglish
Pages (from-to)3180-3185
Number of pages6
JournalOrganic Electronics: physics, materials, applications
Volume14
Issue number12
DOIs
Publication statusPublished - 2013 Oct 18

Fingerprint

Nanoimprint lithography
Photovoltaic cells
photovoltaic cells
lithography
solar cells
Conversion efficiency
augmentation
short circuit currents
electromagnetic absorption
optical measurement
Short circuit currents
Light absorption
electrical measurement
Nanostructures
Substrates
Organic solar cells
poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)

Keywords

  • Nanoimprint lithography
  • Organic photovoltaics
  • Patterning
  • PEDOT:PSS

ASJC Scopus subject areas

  • Biomaterials
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Electrical and Electronic Engineering
  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Enhancement of organic solar cell efficiency by patterning the PEDOT : PSS hole transport layer using nanoimprint lithography. / Choi, Je Hong; Choi, Hak Jong; Shin, Ju Hyeon; Kim, Hyeong Pil; Jang, Jin; Lee, Heon.

In: Organic Electronics: physics, materials, applications, Vol. 14, No. 12, 18.10.2013, p. 3180-3185.

Research output: Contribution to journalArticle

Choi, Je Hong ; Choi, Hak Jong ; Shin, Ju Hyeon ; Kim, Hyeong Pil ; Jang, Jin ; Lee, Heon. / Enhancement of organic solar cell efficiency by patterning the PEDOT : PSS hole transport layer using nanoimprint lithography. In: Organic Electronics: physics, materials, applications. 2013 ; Vol. 14, No. 12. pp. 3180-3185.
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