By introducing a titanium oxide (TiOx) layer between the active and aluminum cathode in polymer-based electronic devices (see figure), with excellent air stability enhanced performance are demonstrated. The TiOx acts as shielding scavenging that prevents intrusion of oxygen humidity into electronically polymers, thereby improving lifetime unpackaged exposed to by nearly two orders magnitude.

Abstract Thermoelectric (TE) generation with solution‐processable conducting polymers offers substantial potential in low‐temperature energy harvesting based on high tunability materials, processes, and form‐factors. However, manipulating the TE charge transport properties accompanies structural energetic disorders, restricting enhancement of thermoelectric power factor ( PF ). Here, solution‐based strong acid–base treatment techniques are introduced to modulate doping level...

A novel graphitizable phenolic network is implemented through modular knitting of tannic acids. Its hybridized phase with metals can offer on-demand tunability for designing electrochemically active materials energy storage/conversion systems.

Abstract In this study, the electrochemical characteristics of an anode fabricated using exfoliated graphite (EG), which is mass‐produced method, are evaluated to verify potential EG as a conductive additive. exhibits high electrical conductivity because sp 2 bonding on two‐dimensional plane; provides stable pathway and promotes electron transfer in anode. Furthermore, small number graphene layers provide excellent mechanical properties (elastic modulus, tensile strength), suppresses volume...

Abstract Hybridizing single‐walled carbon nanotubes (SWCNTs) with π‐conjugated organic small molecules (π‐OSMs) offers a promising approach for producing high‐performance thermoelectric (TE) materials through the facile optimization of molecular geometry and energy levels π‐OSMs. Designing twisted structure π‐OSM highest occupied orbital level comparable to valence band SWCNTs enables effective filtering between two materials. The SWCNTs/twisted hybrid exhibits high Seebeck coefficient 110.4...

We systematically investigated the effect of 2,5-bis(2-hydroxy-3-methacryloyloxypropoxy)-1,4:3,6-dianhydro-sorbitol (Iso-GMA) with different concentrations on structural and morphological evolution poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) containing a fixed volume dimethyl sulfoxide (DMSO) to realize water-resistant organic thermoelectric devices. As an additive, Iso-GMA is hydrophilic crosslinking agent that can interact PEDOT PSS chains by hydrogen bonding...

Twisted small organic molecules (SOMs) enhance the thermoelectric performance of single-walled carbon nanotubes/SOM hybrid films by dramatically increasing Seebeck coefficient and minimising inevitable reduction in electrical conductivity.

The stability of n-type organic and hybrid thermoelectric materials is limited in terms their practical application to p–n parallel devices. We demonstrate the ambient an single-walled carbon nanotube/organic small-molecule (SWNT/OSM) by deepening lowest occupied molecular orbital energy level. This exhibited best figure merit (0.032) among SWNT/OSM thermoelectrics enhanced power factor 291.0 μW m–1 K–2. Furthermore, we observed that a SWNT pip containing two N-ethylpiperidinyl groups on...

Single-walled carbon nanotube (SWCNTs-P)–small organic molecule hybrid materials are promising candidates for achieving high thermoelectric (TE) performance. In this study, we synthesized rod-coil amphiphilic molecules, that is, tri(ethylene oxide) chain-attached bis(bithiophenyl)-terphenyl derivatives (1 and 2). Supramolecular functionalization of SWCNTs-P with 1 or 2 induced charge-transfer interactions between them. Improved TE properties the supramolecular hybrids (SWCNTs-1 SWCNTs-2)...

We investigated the effect of graphene quantum dots (GQDs) on thermoelectric properties free‐standing poly(3,4‐ethylene dioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) films. The electrical conductivity and Seebeck coefficient film containing 0.50 vol% GQDs are 164.60 S/cm 34.85 μV/K, compared with 22.50 27.72 respectively, for pristine PEDOT:PSS without GQDs. power factor (PF) increased up to 22.37 μW/mK 2 , which is ~13 times higher than that (1.73 ) through selective dedoping PEDOT by...

We investigated the alkyl chain length effect of small organic molecules (SOMs) on thermoelectric (TE) efficiency and transport properties single-walled carbon nanotubes (SWCNTs)/SOM hybrids. The SWCNTs/DBOBI with an octyl tethering exhibited greatest Seebeck coefficient (91.6 ± 5.3 μV/K) power factor (182.6 15.1 μW/mK2), revealing semiconducting-dominant carrier transport. FeCl3-doped a significantly enhanced 236.2 12.3 μW/mK2 ZT 0.021 at room temperature. Our study provides clear...

This paper presents an experimental finding in the Split Hopkinson Pressure Bar (SHPB) technique to obtain a better compressive stress strain data for rubber materials. An which modifies conventional SHPB has been developed measuring responses of materials with low mechanical impedance and strengths such as rubber. uses all-polymeric pressure bar achieves closer match between specimen In addition, pulse shaper is utilized lengthen rising time incident ensure equilibrium homogeneous...

The extensible supply of New & Renewable energy resources desperately needs to counter the high dependence on imported energy, recent oil prices and Climate Change Conference, government has operated 'Renewable Portfolio Standard' (RPS) as one renewable policy from 2012. By analyzing operation case combined heat power plant using woodchip biomass, we drew price wood chip fuel, capacity factor, electricity selling price, LCOE value. After economic feasibility 3MWe based operating performance,...

Poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) has shown significant achievements in organic thermoelectrics (TEs) as an alternative for inorganic counterparts. However, PEDOT:PSS films have limited practical applications because their performance is sensitive to humidity. Crosslinking additives are utilized improve the reliability of film through enhancing hydrophobicity; among these, polyethylene glycol (PEG) a widely-used additive. ether groups PEG induce water...

A porous carbon foam (P-CF) with high porosity and large pore volume is developed to offer an efficient scaffold for radionuclides adsorption/decontamination. The three-dimensional (3D) structure can be easily formed by carbonization of petroleum pitch. During the heat treatment process, volatile components from pitch create highly interconnected pores without any templates, blowing foaming agents. In addition, Prussian Blue (PB) nanoparticles are introduced onto surface P-CF a simple...