Abstract
Abstract We present flexible inorganic/organic composite films with high thermoelectric performance. SnSe0.97Te0.03 (Sn–Se–Te) is a promising inorganic material, with an outstanding Seebeck coefficient, and it can be successfully exfoliated from bulk ingots into nanosheets. We incorporated these Sn–Se–Te nanosheets in a conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) matrix to obtain Sn–Se–Te nanosheets(x)/PEDOT:PSS composite films (where x indicates the loading ratio in wt% of the Sn–Se–Te nanosheets). The thermoelectric properties of these composites were examined and discussed as a function of x, and their thermoelectric power factor was optimized. The maximum power factor (∼130.3 μW m−1·K−2) with outstanding durability was obtained with the Sn–Se–Te nanosheets(15)/PEDOT:PSS composite, and this was attributed to the improved Seebeck coefficient. Hence, the incorporation of Sn–Se–Te nanosheets and PEDOT:PSS is promising for flexible thermoelectric applications.
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