Energy storage semiconductor energy storage

Can semiconductors be used for energy conversion & storage?

The application of semiconductors to new energy conversion and storage has been widely reported. Coupling devices through the joining principle is an emergent frontier.

Why did we choose two energy conversion and storage systems?

We selected these two systems for the present study, because they represent the current and near-future energy conversion and storage technologies with a high potential to be combined with renewable and sustainable energy sources.

What is Fermi level in P-type semiconductors?

In the case of p-type (normally on the cathode side) semiconductors, the Fermi level normally exists at lower energy (near the VB and more negative) than that of the electrolyte, and its EF shifts to higher energy (downward band bending) at the interface.

Why is semiconductor electrochemistry a logical deduction?

A logical deduction can be made that by employing semiconductor electrochemistry, because a semiconductor provides two energy levels (the conduction band (CB) and the valence band (VB)), the charge transfer occurring at these two energy levels can be easily controlled.

What causes a space charge region in a semiconductor?

A space charge region (created due to a change in EF position) can be expected on the semiconductor side due to the difference in electrostatic potential in the process, and its charge will be transferred to the electrolyte, leading to energy loss and band structure rearrangement (see Fig. 3 a).

Why is semiconductor electrochemistry important for fuel cells?

Semiconductor electrochemistry is a particularly relevant and fundamental area for fuel cell devices, including ion transport in fuel cells . Semiconductor heterostructure-based fuel cells are convenient to scale using the energy levels relative to the vacuum level (VL) compared to those with an intrinsic ionic conductor.