Table 1 Summary of the parameters used in BO. The predicted values of ZT (ZTpred) and EI, the BO model outputs, are also shown for each cycle.

From: Bayesian optimization-driven enhancement of the thermoelectric properties of polycrystalline III-V semiconductor thin films

Cycle number

Tsub [°C]

TGa-cell [°C]

TAs-cell [°C]

TSb-cell [°C]

TSn-cell [°C]

ZT

ZTpred

EI

1

400

935

205

405

795

0.001

  

2

310

960

205

350

830

0.000

  

3

130

820

255

410

765

0.013

  

4

270

820

235

315

855

0.007

  

5

300

940

230

330

830

0.005

  

6

585

825

250

300

635

0.016

0.005

2.2 × 10–6

7

130

885

235

325

605

0.025

0.010

5.3 × 10–6

8

100

820

150

300

600

0.000

0.015

6.0 × 10–5

9

100

935

255

380

600

0.003

0.020

3.3 × 10–5

10

235

845

255

310

600

0.016

0.021

8.5 × 10–5

11

165

860

220

350

640

0.033

0.020

1.5 × 10–5

12

350

845

215

365

600

0.027

0.021

1.6 × 10–5

13

135

840

195

395

600

0.000

0.021

1.3 × 10–5

14

280

870

220

330

650

0.017

0.030

9.2 × 10–5

15

205

850

240

365

620

0.029

0.028

1.0 × 10–4

16

100

850

235

345

675

0.020

0.028

4.9 × 10–5

17

220

830

225

345

600

0.019

0.027

3.6 × 10–5

18

215

875

225

365

600

0.029

0.031

6.4 × 10–5

19

265

855

230

380

690

0.027

0.025

3.0 × 10–5