Connect with us

Polymer LED life at high temperature

Discussion in 'Electronic Design' started by Spehro Pefhany, Sep 10, 2004.

Scroll to continue with content
  1. Anyone got any solid information on lifespan of these devices at
    temperatures in the 40-50°C range?

    Best regards,
    Spehro Pefhany
     
  2. Fred Bloggs

    Fred Bloggs Guest

    This article from Materials Today has a ton of references some of which
    go into degradation and failure effects. The main thing would be to
    determine the failure acceleration factor function for temperature, and
    it will come down to the manufacturer quality control.
    http://www.depeca.uah.es/wwwnueva/docencia/ING-ECA/tec-disp/art4.pdf
     
  3. Thanks. Wow, there *are* a lot of references there. There are two
    factors in the quality control- the materials themselves (which should
    be very consistent) and their application (eg. by spinning) and the
    design of the moisture barriers etc (which are different companies,
    and probably much less dependable). The lifetimes (to 50%) of some
    these things are in the 10K hours range even at 25°C..

    Best regards,
    Spehro Pefhany
     
  4. Phil Hobbs

    Phil Hobbs Guest

    Yeah, there are also some very unusual materials used in OLEDs, e.g. calcium
    metal.

    Cheers,

    Phil Hobbs
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-