Third-order photon correlations to extract single nanocrystal multiexciton properties in solution

High flux optical applications require materials with high brightness and color pure emission. Colloidal nanocrystals are solution-processible with tunable, spectrally narrow emission, and high brightness per emitter. Multiexciton emission in colloidal nanocrystals can significantly contribute to the brightness of the emission in high flux optical devices. However, multiexciton emission also has the potential to contribute to emission broadening, which reduces color purity. There is a need to understand and control multiexciton behavior in colloidal nanocrystal. Here we develop a third-order photon correlation technique to characterize the average single nanocrystal triexciton quantum yield and lifetime in a solution-phase experiment. This technique derives from the relationship between the Poissonian probability of nanocrystal photon absorption and the intrinsic probability of nanocrystal photon emission. We validate the theoretical background of this technique by creating a numerical ..., , , # Third-order photon correlations to extract single nanocrystal multiexciton properties in solution

[https://doi.org/10.5061/dryad.2547d7x1z](https://doi.org/10.5061/dryad.2547d7x1z)

## Description of the data and file structure

Files are stored in matlab (.mat) format

### Folder/File Naming

There are two naming structures: One for the solution triexciton quantum yield data and the other for the solution triexciton lifetime data.

#### Solution Triexciton Quantum Yield Data

For the solution triexciton quantum yield data, the data is stored in folders with the naming convention 'Photons_jBX_iTX' where j and i correspond to the simulated biexciton and triexciton quantum yield, respectively. 

Within each folder, the photon stream is split up into a series of photon stream batches which are named 'Photons_1', 'Photons_2','Photons_3',etc.

#### Solution Triexciton Lifetime Data

For the solution triexciton lifetime data, the data is stored in folders with the naming convention 'Photon...,