Impact of trap position on the current density-voltage characteristics of organic semiconductor devices

Donghyun Ko; Jaesang Lee

doi:10.1117/12.2676604

1 October 2023 Impact of trap position on the current density-voltage characteristics of organic semiconductor devices

Donghyun Ko, Jaesang Lee

Proceedings Volume 12659, Organic and Hybrid Light Emitting Materials and Devices XXVII; 1265903 (2023) https://doi.org/10.1117/12.2676604
Event: SPIE Organic Photonics + Electronics, 2023, San Diego, California, United States

Abstract

In this article, we briefly review our recent publication on the influence of trap positions on the current density-voltage characteristics of organic semiconductor devices (PRB, 107, 1652304 [2023]). The position of traps significantly affects the total charge density and electric field in the active organic layer, consequently impacting the operating voltage of the comprising devices. Our findings showed that as the position of traps moves from the charge extraction electrode (cathode) towards the charge injection electrode (anode), the required voltage to achieve a constant current density initially increases. However, a reversed trend in the operating voltage vs. trap position is observed when the traps are present in the vicinity of the anode. We figured out that this phenomenon originates from the trap position dependence of electric field distribution.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Donghyun Ko and Jaesang Lee "Impact of trap position on the current density-voltage characteristics of organic semiconductor devices", Proc. SPIE 12659, Organic and Hybrid Light Emitting Materials and Devices XXVII, 1265903 (1 October 2023); https://doi.org/10.1117/12.2676604

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