A demonstration of solid-state white light-emitting electrochemical cells using the integrated on-chip plasmonic notch filters

Ya-Ju Lee, Chia Ching Lin, Hsiao Chin Lee, Yung Chi Yao, Monima Sarma, Hai Ching Su, Zu Po Yang, Ken Tsung Wong

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In this study, we demonstrate solid-state white light-emitting electrochemical cells (LECs) using an integrated plasmonic notch filter to tailor the electroluminescence (EL) spectrum of non-doped blue-green emissive material. The plasmonic notch filter is composed of randomly distributed silver nanoparticles (Ag-NPs) embedded in the anode contact of indium tin oxide (ITO). This plasmonic notch filter strongly absorbs green light due to local surface plasmon (LSP) resonance of the Ag-NPs embedded in ITO. Thus, the emission green light of the solid-state LEC is strongly suppressed, leaving the blue and red light output to generate a white EL emission. Moreover, the duration of white EL can be maintained for a longer time under operation, which overcomes the issues regarding the short lifetime of white EL generated by the microcavity effect. In addition, the Ag-NPs can be readily fabricated by the thermal annealing of Ag film, which is compatible with current fabrication technologies typically used in light-emitting diode (LED) industry. Therefore, solid-state white LECs using an integrated on-chip plasmonic notch filter have great potential for applications in solid-state lighting.

Original languageEnglish
Pages (from-to)1599-1605
Number of pages7
JournalJournal of Materials Chemistry C
Volume4
Issue number8
DOIs
Publication statusPublished - 2016 Jan 1

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Notch filters
Electrochemical cells
Electroluminescence
Demonstrations
Methyl Green
Tin oxides
Indium
Microcavities
Surface plasmon resonance
Silver
Light emitting diodes
Anodes
Lighting
Annealing
Nanoparticles
Fabrication
Industry
indium tin oxide

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

Cite this

A demonstration of solid-state white light-emitting electrochemical cells using the integrated on-chip plasmonic notch filters. / Lee, Ya-Ju; Lin, Chia Ching; Lee, Hsiao Chin; Yao, Yung Chi; Sarma, Monima; Su, Hai Ching; Yang, Zu Po; Wong, Ken Tsung.

In: Journal of Materials Chemistry C, Vol. 4, No. 8, 01.01.2016, p. 1599-1605.

Research output: Contribution to journalArticle

Lee, Ya-Ju ; Lin, Chia Ching ; Lee, Hsiao Chin ; Yao, Yung Chi ; Sarma, Monima ; Su, Hai Ching ; Yang, Zu Po ; Wong, Ken Tsung. / A demonstration of solid-state white light-emitting electrochemical cells using the integrated on-chip plasmonic notch filters. In: Journal of Materials Chemistry C. 2016 ; Vol. 4, No. 8. pp. 1599-1605.
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