ML Predicting toolkit of thermoelectric properties for p-type SnSe materials
DOI
Prediction of electrical conductivity, Seebeck coefficient, thermal conductivity, and ZT for p-type SnSe with Na 1% doping
1) Alloying element and ratio
2) Sn vacancy ratio
ML NIMS ZT Profile Prediction for SnSe Materials
Prediction the figure of merit ZT profile in Temperature (multi-target)
1) Host element composition & ratio
2) Dopant element composition & ratio
3) Dopant element properties

Machine Learning Prediction Model for the Temperature Profile of ZT

1. Thermoelectrical Material Experimental Data ans features
We are using the TEXplorer data set, collected from the real experiments. In feature modeling element property features are added in data set, especially for dopant elements. Also, the compositions and ratios of host and dopant elements are included in feature set.
2. Machine Learning Prediction Model
A few machine learning algorithms provide a capability to predict multi-target, here, the temperature profile of ZT. We adopt the random forest algorithm for it.
3. Results
We compared the performance between single target-multiple prediction and multiple target-single prediction, which is implemented in TEXplorer. Multiple target-single prediction with random forest gives better results in profile predictions.
ML Predicting toolkit of thermoelectric properties for Bi2Te3 materials
Prediction of electrical conductivity, Seebeck coefficient, thermal conductivity, and ZT for Bi2Te3 with various dopants
1) ratio of Bi and Te
2) 1st doping element and ratio
3) 2nd doping element and ratio
4) 3rd doping element and ratio
Functions Solubility limit of dopants in SnSe
DOI
Provide solubility limit of dopants considering thermodynamic stability within the DFT calculations, and show competing phases for each dopant
Doping element
Functions NIMS outlier detection with isolation forest
Ref
Find outliers
CSV consisting of numbers except for the first column.
Functions NIMS data analysis with topological based data analysis (TDA)
Study the shape of data
CSV file with numbers. The first column is set as an index.
Functions NIMS itevis
Interactive software for Thermoelectric materials data preprocessing and visual analysis