Review on Metal-Free Light-emitting Dyes for OLED

Document Type : Review paper

Authors

1 Department of Organic Colorants, Institute for Color Science and Technology, P. O. Box: 16765-654, Tehran, Iran.

2 Department of Engineering and Physics, Karlstad University, P. O. Box: 65188, Karlstad, Sweden.

Abstract

Organic light emitting diodes containing organic materials and components creat a bright vision in the development of displays and lighting technology due to the reduction of costs, the facility of the production process, and the production process due to the elimination of noble heavy metals. Today, much research is being done on developing high-efficiency of the organic emitter. For this purpose and design of effective material, it is necessary to pay attention to two points: 1) how to overcome the efficiency limit caused by the number of spin-excitons and 2) how to increase the efficiency of out-coupling. Metal-free compounds usable in organic light emitting diodes are classified into two general classes, small molecule compounds and dendrimers. Various emitter compounds are synthesized from these classes and evaluated for use in the structure of OLED. This article reviews metal-free organic emitters for use in Organic light emitting diodes.

Keywords

Main Subjects

References

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Journal of Studies in Color World
Volume 12, Issue 2
October 2022
Pages 105-116

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History

  • Receive Date: 10 May 2022
  • Revise Date: 02 July 2022
  • Accept Date: 03 July 2022

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