title: Facile preparation and thermoelectric properties of Bi₂Te₃ based alloy nanosheet/PEDOT:PSS composite films.
abstract: Bi2Te3 based alloy nanosheet (NS)/poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) composite films were prepared separately by spin coating and drop casting techniques. The drop cast composite film containing 4.10 wt % Bi2Te3 based alloy NSs showed electrical conductivity as high as 1295.21 S/cm, which is higher than that (753.8 S/cm) of a dimethyl sulfoxide doped PEDOT:PSS film prepared under the same condition and that (850-1250 S/cm) of the Bi2Te3 based alloy bulk material. The composite film also showed a very high power factor value, ∼32.26 μWm(-1) K(-2). With the content of Bi2Te3 based alloy NSs increasing from 0 to 4.10 wt %, the electrical conductivity and Seebeck coefficient of the composite films increase simultaneously.
authors.affiliation: Functional Materials Research Laboratory, Tongji University , 4800 Caoan Road, Shanghai 201804, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Du
authors.forename: K F
authors.initials: KF
authors.lastname: Cai
authors.forename: Song
authors.initials: S
authors.lastname: Chen
authors.forename: Pavel
authors.initials: P
authors.lastname: Cizek
authors.forename: Tong
authors.initials: T
authors.lastname: Lin