Effects of sulfide treatment of indium tin oxide on efficiency of polymer light-emitting diodes

Yow Jon Lin, Wei Yang Chou, Shin Ting Lin, Chang Feng You, Chia Lung Tsai

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Abstract

The effects of the sulfide treatment of indium tin oxide (ITO) on the efficiency of polymer light-emitting diodes (PLEDs) were investigated in this study. We found that an increase in the work function of ITO and a decrease in the number of oxygen vacancies (Vo) near the ITO surface region (due to the occupation of Vo by sulfur) result in an increase in device efficiency. It is worth noting that a suitable sulfide treatment time is an important issue for producing high-external-quantum-efficiency PLEDs.

Original languageEnglish
Pages (from-to)647-650
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume46
Issue number2
DOIs
Publication statusPublished - 2007 Feb 8

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All Science Journal Classification (ASJC) codes

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

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