Optical second harmonic generation at heterojunction interfaces of a molybdenum trioxide layer and an organic layer

A. B. El Basaty, Y. Miyauchi, G. Mizutani, T. Matsushima, H. Murata

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4 Citations (Scopus)

Abstract

We have observed optical second harmonic generation (SHG) from a space charge layer (SCL) in a stacked indium tin oxide (ITO)/molybdenum trioxide (MoO3) /N- N′ -diphenyl- N- N′ -bis(1-naphthly)- 1, 1′ -biphenyl- 4, 4′ -diamine (α -NPD) system. When the MoO3 thicknesses were increased, the SHG signals from this system decreased sharply at smaller MoO3 thicknesses, and were saturated at MoO3 thicknesses larger than 1 nm. These results prove the vital role of SCL in improvement of drive voltages of organic light-emitting diodes.

Original languageEnglish
Article number193302
JournalApplied Physics Letters
Volume97
Issue number19
DOIs
Publication statusPublished - Nov 8 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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