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Impact of different layers on performance of OLED

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Abstract

This paper explores how different layers in an organic light emitting diode (OLED) impacts its performance. Here, different layers of OLED similar to hole/electron injection layer, transport layer, and block layers are analyzed. Four experimental devices are taken into consideration and their results are compared to one over another to analyze the impact of every layer. Inside depth analysis is also performed on the device to inspect what really is happening Innermost of the OLED. It is noticed that hole and electron block layer are instrumental in improving the device luminescence performance and efficiency. There is an improvement of 16, 37 and 38% in the luminescence of the device when hole block layers and electron block layers are added. Internal device analysis reveals that increase in charge carrier concentration and carrier confinement are the reason for this improvement.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, Graphic Era University, Dehradun, 248002, India

    Shubham Negi

  2. Department of Electronics and Communication Engineering, Delhi Technological University, Delhi, 110042, India

    Poornima Mittal

  3. Department of Electronics and Communication Engineering, M. M. M. University of Technology, Gorakhpur, UP, India

    Brijesh Kumar

Authors
  1. Shubham Negi
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  2. Poornima Mittal
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  3. Brijesh Kumar
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Correspondence to Poornima Mittal.

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Negi, S., Mittal, P. & Kumar, B. Impact of different layers on performance of OLED. Microsyst Technol 24, 4981–4989 (2018). https://doi.org/10.1007/s00542-018-3918-y

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  • DOI: https://doi.org/10.1007/s00542-018-3918-y

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