Charge carrier mobilities in molecular materials for electroluminescent diodes

Tetsuo Tsutsui; Hiroaki Tokuhisa; Masanao Era

doi:10.1117/12.305425

17 April 1998 Charge carrier mobilities in molecular materials for electroluminescent diodes

Tetsuo Tsutsui, Hiroaki Tokuhisa, Masanao Era

Proceedings Volume 3281, Polymer Photonic Devices; (1998) https://doi.org/10.1117/12.305425
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

The effect of charge carrier mobilities on EL performances in electroluminescent diodes were discussed. It is stressed that quantum EL efficiency is no direct relation with charge mobilities but power efficiency may concern with charge carrier transport processes, because power efficiency is inversely proportional to drive voltage. Hole and electron mobility data on both bulk films and polymer-dispersed films were summarized and some discussions on the relation between molecular structures and charge mobilities were added. In addition, the meaning of designing high mobility materials for EL diodes is discussed. Our recent studies on the introduction of molecular alignment by use of liquid crystalline textures for the increase of charge mobilities were mentioned.

Citation Download Citation

Tetsuo Tsutsui, Hiroaki Tokuhisa, and Masanao Era "Charge carrier mobilities in molecular materials for electroluminescent diodes", Proc. SPIE 3281, Polymer Photonic Devices, (17 April 1998); https://doi.org/10.1117/12.305425

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