Degummed silk yarn was obtained from Aurora
Silk, USA and used as received (Ahisma sewing thread; ⌀yarn ≈ 0.25 mm as measured with an optical microscope).
Cotton yarn was obtained from Gütterman, Germany and used as
received (CA02776; ⌀ ≈ 0.18 mm). Water dispersion of
PEDOT:PSS was purchased from Heraeus, Germany (PH1000; ratio 1:2.5;
solid content ≈ 1.1–1.3 wt %; pH ∼2). PEDOT-S
was synthesized according to a previously published procedure.26 (link) Ethylene glycol (EG), dimethyl sulfoxide (DMSO),
methanol 99% (MeOH), ethanol 95%, and fuming hydrochloric acid (HCl)
were purchased from Sigma-Aldrich and used as received. Zonyl FS-300
was purchased from Dupont. Silver paint was purchased from Agar Scientific,
UK. For the textile thermoelectric devices, a stretchable silver paste
(PE872 Conductor paste, DuPont, UK) was used. After application, this
silver paste was dried for 1 h at room temperature and then cured
at 100 °C for 10 min. The silver wire was 0.3 mm in diameter.
Silk, USA and used as received (Ahisma sewing thread; ⌀yarn ≈ 0.25 mm as measured with an optical microscope).
Cotton yarn was obtained from Gütterman, Germany and used as
received (CA02776; ⌀ ≈ 0.18 mm). Water dispersion of
PEDOT:PSS was purchased from Heraeus, Germany (PH1000; ratio 1:2.5;
solid content ≈ 1.1–1.3 wt %; pH ∼2). PEDOT-S
was synthesized according to a previously published procedure.26 (link) Ethylene glycol (EG), dimethyl sulfoxide (DMSO),
methanol 99% (MeOH), ethanol 95%, and fuming hydrochloric acid (HCl)
were purchased from Sigma-Aldrich and used as received. Zonyl FS-300
was purchased from Dupont. Silver paint was purchased from Agar Scientific,
UK. For the textile thermoelectric devices, a stretchable silver paste
(PE872 Conductor paste, DuPont, UK) was used. After application, this
silver paste was dried for 1 h at room temperature and then cured
at 100 °C for 10 min. The silver wire was 0.3 mm in diameter.