OLED dipole-emission simulation
Compute OLED outcoupling efficiency (OCE), the Purcell factor, and exactly where the rest of the light is lost — by treating the emitter as an oscillating dipole inside the microcavity, not an isotropic point source.
What "dipole-emission" means for OLEDs
An OLED generates light inside a thin emissive layer sandwiched between mirrors and metal. Most of that light never escapes — it is trapped in waveguide modes, coupled into surface plasmons at the metal, or re-absorbed. A rigorous OLED simulation treats each emitting molecule as a tiny antenna (an oscillating electric dipole) and integrates its emission over every in-plane wavevector and wavelength.
Phazic uses the Chance–Prock–Silbey (CPS) / Furno framework on a numerically stable Redheffer S-matrix backbone, so the calculation stays finite even for thick metal electrodes and high in-plane wavevectors (k∥ ≫ k0) where simpler transfer-matrix tools overflow.
What Phazic computes
- Outcoupling efficiency (OCE) — fraction of generated light that escapes to air, wavelength- and angle-resolved.
- Purcell factor (F∥ / F⊥ / mixed) — cavity-modified emission rate.
- 5-channel loss decomposition — AIR / substrate / waveguide / SPP+quench / host absorption.
- Dipole orientation — horizontal / vertical / isotropic, with α-weighted mixing.
- Angular × spectral radiance maps and CIE color of the emitted light.
- Bottom / top / transparent OLED and tandem (multi-EU) stacks.
- Dipole vs geometric estimate side by side — a dipole OCE above the geometric escape-cone bound flags a well-tuned microcavity.
Try it
Phazic runs on Windows 10 and 11 and is available from the Microsoft Store. Model your OLED stack once and read OCE, Purcell, and per-channel losses in a single click.