Light energy conversion element and device comprising the same

Patent metadata

Field	Value
Publication number	US-10629764-B2
Application number	US-201916516233-A
Country	US
Kind code	B2
Filing date	Jul 18, 2019
Priority date	Jun 13, 2018
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

The present disclosure provides a light energy conversion element in which a material having a bandgap suitable for a light energy conversion layer is used. The light energy conversion element according to the present disclosure comprises a light energy conversion layer containing BaBi 2 S 4 having a hexagonal crystal structure.

First claim

The invention claimed is:

1. A photovoltaic device, comprising:
a photovoltaic active layer containing BaBi 2 S 4 having a hexagonal crystal structure;
a first electrode connected electrically to the photovoltaic active layer; and
a second electrode connected electrically to the photovoltaic active layer,
wherein the photovoltaic active layer is provided between the first electrode and the second electrode.

2. A method for converting light into electric energy, the method comprising:
irradiating a photovoltaic active layer containing BaBi 2 S 4 having a hexagonal crystal structure with light to take out the electric energy from a first electrode and a second electrode, both of which are electrically connected to the photovoltaic active layer.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Kikuchi Ryosuke
• Nakamura Toru
• Kurabuchi Takahiro
• Hato Kazuhito
• Oba Fumiyasu
• Kumagai Yu

Classifications

• C25B1/04

  by electrolysis of water · CPC title

• H01L31/022466

  Electricity · mapped topic

• H01L31/036

  Electricity · mapped topic

• H01L31/0725 Primary

  Electricity · mapped topic

• Y02E60/36

  Hydrogen production from non-carbon containing sources, e.g. by water electrolysis · CPC title