Effect of water and DMSO on mechanoelectrical conversion of Schottky DC generators

Abstract

The water content in polypyrrole profoundly affects the electrical output of polypyrrole-based Schottky DC generators, and adding DMSO to polypyrrole enhances the device energy conversion performance.

Schottky DC generators from polypyrrole nanocomposites of N-type semiconductor metal oxides and the multiple device connection effect

“…Once the saturation current is known, the barrier height of the junction (f b ) is determined from J s using eqn (3). 11,12,[18][19][20][21] Fig. 2f shows the calculated f b .…”

“…In the previous papers, the energy conversion mechanism of Schottky DC energy generators was proposed. 11,[19][20][21] For Schottky diodes formed by metal (Al) and p-type semiconductors (e.g., PPy), their barrier height is determined by the metal work function and semiconductor energy band. Due to the Schottky junction, electrons ow from the metal to the semiconductor to This journal is © The Royal Society of Chemistry 2023 reach a charge equilibrium.…”

“…In the previous papers, the energy conversion mechanism of Schottky DC energy generators was proposed. 11,19–21 For Schottky diodes formed by metal (Al) and p-type semiconductors ( e.g. , PPy), their barrier height is determined by the metal work function and semiconductor energy band.…”

“…20 Compared with the device without TiO 2 , the current output was increased by 48 times, and the power density was increased by 167 times. More recently, Ding et al 21 found that water and DMSO in conducting polymers can enhance the Schottky device's electrical outputs.…”

“…It has been reported that protonic acids, graphene oxide, TiO 2 nanoparticles, and water/DMSO in the conducting polymers can enhance the energy conversion of the Schottky DC generators. 18–21 The device composed of PANI doped with HCl showed higher outputs than those doped with other protonic acids. 18 When a small amount of graphene oxide (1.6 wt%) was added to polypyrrole, the Schottky DC generator showed a 6.25 times improvement in current density.…”