Predicting the lifetime of flexible permeation barrier layers for OLED displays

Bhadri Visweswaran, Siddharth Harikrishna Mohan, Prashant Mandlik, Jeff Silvernail, Ruiqing Ma, James Sturm, Sigurd Wagner

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Water diffusion through a single-layer barrier is measured with Secondary Ion Mass Spectrometry, electrical capacitance, and mechanical film stress. The time taken for one monolayer of water molecules permeate into the OLED is defined as the lifetime. Extrapolated to T = 38°C and 90% relative humidity, a 3μm thick barrier is predicted to seal for 13 years.

Original languageEnglish (US)
Pages (from-to)111-113
Number of pages3
JournalDigest of Technical Papers - SID International Symposium
Issue number1
StatePublished - Jun 2014

All Science Journal Classification (ASJC) codes

  • General Engineering


  • SIMS
  • barrier characterization
  • barrier evaluation
  • capacitance
  • diffusion coefficient
  • intrinsic barrier performance
  • lifetime
  • permeation barrier
  • stress
  • water solubility
  • water vapor transmission rate


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