Highly efficient organic photovoltaic cells with molybdenum oxide buffer layer

Jaewook Jung, Donghwan Kim, Won Suk Shin, Sang Jin Moon, Changjin Lee, Sung Cheol Yoon

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

For improving the power conversion efficiency and fill factor of the organic photovoltaic cells (OPVs), molybdenum oxide (MoO 3) can be used as a buffer layer. In this study, we fabricated OPVs by inserting a thin and transparent molybdenum oxide (MoO 3) layer between the transparent indium tin oxide (ITO) and the organic photoactive layer, with the configuration of ITO/MoO 3 (10 nm)/poly(3-hexylthiophene) (P3HT) and [6,6]- phenyl C61 butyric acid methyl ester (PC 60BM)/lithium fluoride (LiF)/Al. By spin-coating, the device showed power conversion efficiencies as high as 4.2% under AM 1.5G (100mW/cm 2), enhanced fill factor of 0.67, a short circuit current density (Jsc) of 9.32 mA/cm 2, and open-circuit voltage (Voc) of 0.67 V. In the case of flexible OPVs, device with 10-μm-thick MoO 3 buffer or 45-μm-thick PEDOT:PSS buffer exhibited the power conversion efficiency (PCE) and fill factor (FF) of 1.54% and 0.44 or 0.76% and 0.30, respectively.

Original languageEnglish
JournalJapanese Journal of Applied Physics
Volume49
Issue number5 PART 2
DOIs
Publication statusPublished - 2010 May 1

Fingerprint

Molybdenum oxide
molybdenum oxides
Photovoltaic cells
photovoltaic cells
Buffer layers
Conversion efficiency
buffers
Tin oxides
indium oxides
Indium
tin oxides
lithium fluorides
Butyric acid
butyric acid
Spin coating
Open circuit voltage
short circuit currents
open circuit voltage
Short circuit currents
coating

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Highly efficient organic photovoltaic cells with molybdenum oxide buffer layer. / Jung, Jaewook; Kim, Donghwan; Shin, Won Suk; Moon, Sang Jin; Lee, Changjin; Yoon, Sung Cheol.

In: Japanese Journal of Applied Physics, Vol. 49, No. 5 PART 2, 01.05.2010.

Research output: Contribution to journalArticle

Jung, Jaewook ; Kim, Donghwan ; Shin, Won Suk ; Moon, Sang Jin ; Lee, Changjin ; Yoon, Sung Cheol. / Highly efficient organic photovoltaic cells with molybdenum oxide buffer layer. In: Japanese Journal of Applied Physics. 2010 ; Vol. 49, No. 5 PART 2.
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