Lasing in the Space Charge-Limited Current Regime

TL;DR

This paper presents an analytical model for organic laser diodes operating in the space charge-limited current regime, providing threshold expressions and bounds that support future organic laser development.

Contribution

It introduces a novel analytical framework for organic laser diodes based on space charge-limited current principles, validated against drift-diffusion models.

Findings

Threshold current and voltage expressions match drift-diffusion simulations.

Established bounds for laser operation considering losses.

Foundation for advancing organic laser diode technology.

Abstract

We introduce an analytical model for ideal organic laser diodes based on the argument that their intrinsic active layers necessitate operation in the bipolar space charge-limited current regime. Expressions for the threshold current and voltage agree well with drift-diffusion modeling of complete p-i-n devices and an analytical bound is established for laser operation in the presence of annihilation and excited-state absorption losses. These results establish a foundation for the development of organic laser diode technology.