Table 1. Thermoelectric properties (Seebeck coefficient, electrical conductivity, thermal conductivity, power factor, and ZT) and stretchability of TE materials. All thermoelectric properties are measured under the experimental conditions that exhibited the highest ZT value at room temperature (300 K)

Ref.	Material& strategy	Thermoelectric properties				Stretchability
		Seebeck coefficient (µV/K)	Electrical conductivity (S/cm)	Thermal conductivity (W/m·K)	Power factor (µW/cm·K2)	ZT (@300 k)	Maximum strain (%)	Electrical conductivity changeΔR/R0 @ strain (%)	Stretching method
[25]	PEDOT:PSS+EMIM:TCM+WPU	~22	140±5	-	0.0678	-	500±130	-	Uniaxial stretching
[26]	CNT+WPU+PVA	44	9.2	-	0.0178	-	27	-	Uniaxial stretching
[27]	PEDOT:PSS+PEG	19.95	882	-	0.351	-	55	~6.6 @ 55%	Uniaxial stretching
[28]	PEDOT:PSS+EMIM:DCI	25	538	-	0.336	-	70	~4.2 @ 77%	Uniaxial stretching
[29]	PEDOT:PSS+DMSO+Triton X-100	13.4	137	-	0.025	-	35	~1.05 @ 35%	Uniaxial stretching
[30]	PEDOT:PSS+SDBS	20.37	623.68	0.16	0.2587	0.05	32	-	Uniaxial stretching
[31]*	PANI+PAAMPSA+PA	8,100±800 (ionic seebeck)	2.37±0.07 (ionic conductivity)	0.451±0.027	16±5	1.04 (ionic ZT)	750	-	Uniaxial stretching
[32]*	WPU+EMIM:DCA	34,500(ionic seebeck)	0.0084(ionic conductivity)	0.23	~10	1.3±0.2(ionic ZT)	156	-	Uniaxial stretching
[33]*	AA+HFBA+MBA+ EMIM:DCA	28,430(ionic seebeck)	0.0353(ionic conductivity)	~0.12	28.5	6.9(ionic ZT)	250	-	Uniaxial stretching
[34]	Ag2S	-	-	-	-	-	14.9	-	Uniaxial stretching
[35]	(AgCu)0.998Se0.22S0.08Te0.7	247	84	0.35	5.12	0.45	3417	--	Compressing3-point bending test
[36]	Ag2Se+Te 3.2at.%	−146	990	0.6	21.1	1.27	-	2.5	Cyclic bending test(1,000회, r=6.3 mm)
[37]	Bi2Te3	−126.6	-	-	-	-	14.5	2.34.4	Cyclic bending test(1,000회, r=2.04 mm)Cyclic strain test(1,000회, strain=5%)
[38]	WS2 + CNT(2wt.%)	−68	100	-	0.47	-	-	12 @ 40%4 @ 40%	Uniaxial stretching(사전 변형 없이)Uniaxial stretching(사전 변형 30%)

TE properties are measured based on ionic TE materials.