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This work reports on an integrated energy harvesting prototype consisting of dispenser-printed thermoelectric energy harvesting and electrochemical energy storage devices. The use of a commercially available DC-to-DC converter is explored to step-up the mV output voltage of the printed thermoelectric device to several volts for charging printable zinc-based(More)
This work presents performance advancements of dispenser printed composite thermoelectric materials and devices. Dispenser printed thick films allow for low-cost and scalable manufacturing of microscale energy harvesting devices. A maximum ZT value of 0.31 has been achieved for mechanically alloyed (MA) n-type Bi₂Te₃-epoxy composite films with 1 wt % Se(More)
Thermoelectric energy generators are attractive as potential energy harvesters for converting waste thermal energy into electrical power. Optimized thermoelectric device designs require 100-200 µm element thicknesses currently unachievable with common manufacturing technologies. This work presents both a unique direct-write dispenser printing technique and(More)
• A flexographic printing method for battery fabrication was presented. • Key criteria for developing functional flexographic inks were established. • A variety of MnO 2 composite cathode inks were developed and analyzed. • A PSBR based ink showed excellent printability and electrochemical performance. a b s t r a c t A novel roll-to-roll flexographic(More)
This work presents a novel method to synthesize p-type composite thermoelectric materials to print scalable thermoelectric generator (TEG) devices in a cost-effective way. A maximum ZT of 0.2 was achieved for mechanically alloyed (MA) p-type Bi0.5Sb1.5Te3 (8 wt % extra Te additive)-epoxy composite films cured at 250 °C. A 50% increase in Seebeck coefficient(More)
Air-stable and soluble tetrabutylammonium fluoride (TBAF) is demonstrated as an efficient n-type dopant for the conjugated polymer ClBDPPV. Electron transfer from F- anions to the π-electron-deficient ClBDPPV through anion-π electronic interactions is strongly corroborated by the combined results of electron spin resonance, UV-vis-NIR, and ultraviolet(More)
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