title: Inkjet-printed flexible organic thin-film thermoelectric devices based on p- and n-type poly(metal 1,1,2,2-ethenetetrathiolate)s/polymer composites through ball-milling.
abstract: In this article, we put forward a simple method for the synthesis of thermoelectric (TE) composite materials. Both n- and p-type composites were obtained by ball-milling the insoluble and infusible metal coordination polymers with other polymer solutions. The particle size, film morphology and composition were characterized by dynamic light scattering, scanning electron microscopy, transmission electron microscopy and energy-dispersive X-ray spectroscopy. The TE properties of the drop-cast composite film were measured at different temperatures. An inkjet-printed flexible device was fabricated and the output voltage and short-circuit current at various hot-side temperatures (Thot) and temperature gradients (ΔT) were tested. The composite material not only highly maintained the TE properties of the pristine material but also greatly improved its processability. This method can be extended to other insoluble and infusible TE materials for solution-processed flexible TE devices.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, , Beijing 100190, People's Republic of China.
authors.forename: Fei
authors.initials: F
authors.lastname: Jiao
authors.forename: Chong-an
authors.initials: CA
authors.lastname: Di
authors.forename: Yimeng
authors.initials: Y
authors.lastname: Sun
authors.forename: Peng
authors.initials: P
authors.lastname: Sheng
authors.forename: Wei
authors.initials: W
authors.lastname: Xu
authors.forename: Daoben
authors.initials: D
authors.lastname: Zhu
keywords: ball-milling; composite; film; inkjet printing; metal coordination polymers; thermoelectric