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

Colloidal semiconductor nanocrystals are considered promising materials for high-flux optical applications including lasing, light-emitting diodes, biological imaging, and quantum optics. In high-flux applications, multiexcitons can significantly contribute to emission, influencing its brightness, spectral purity, and kinetics. As a result, understanding and controlling multiexciton emission in colloidal nanocrystal materials is of the utmost importance. In the past, singlenanocrystal photon correlation methods have been applied to understand biexciton and triexciton efficiencies, lifetimes, and spectra. While powerful, such methods suffer from user selection bias and require stable emission from single nanocrystals. To compensate for this shortcoming, second-order correlation methods were developed to extract sample-averaged biexciton properties from a solution of nanocrystals. Until now, however, the analogous thirdorder solution photon correlat..., , , # 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...,

胶体半导体纳米晶（colloidal semiconductor nanocrystals）被视为适用于高通量光学应用的极具潜力的材料，其应用场景涵盖激光、发光二极管、生物成像与量子光学等领域。在高通量光学应用中，多激子会对发光过程产生显著影响，进而改变发射光的亮度、光谱纯度与动力学特性。因此，理解并调控胶体纳米晶材料中的多激子发光过程至关重要。
此前，研究人员已采用单纳米晶光子关联方法来探究双激子（biexciton）与三激子（triexciton）的效率、寿命及光谱特性。尽管这类方法功能强大，但存在用户选择偏差的缺陷，且要求单纳米晶的发光过程保持稳定。为弥补这一缺陷，研究人员开发了二阶关联方法，以从纳米晶溶液中提取样品平均的双激子特性。然而迄今为止，类似的三阶溶液光子关联方法仍未得到充分发展……

# 用于从溶液中提取单纳米晶多激子特性的三阶光子关联方法
https://doi.org/10.5061/dryad.2547d7x1z

## 数据与文件结构说明
所有文件均以MATLAB（.mat）格式存储。

### 文件夹与文件命名规则
本数据集包含两类命名结构，分别对应溶液相三激子量子产率数据与溶液相三激子寿命数据。

#### 溶液相三激子量子产率数据
对于溶液相三激子量子产率数据，其存储文件夹采用'Photons_jBX_iTX'命名格式，其中j与i分别代表模拟得到的双激子与三激子量子产率。
每个文件夹内的光子流会被拆分为若干光子流批次，批次文件依次命名为'Photons_1'、'Photons_2'、'Photons_3'等。

#### 溶液相三激子寿命数据
对于溶液相三激子寿命数据，其存储文件夹采用'Photon...'命名格式。