Panasonic Intellectual Property Management Co., Ltd.

Panasonic Holdings Corporation

Takeyuki Sekimoto

Yuka Yamada

Masahiro Deguchi

Satoshi Yotsuhashi

Hiroshi Hashiba

Teruaki Yamamoto

Taisuke Matsui

Takashi Nishihara

Michio Suzuka

Maki Hiraoka

Tomoyasu Yokoyama

Yoshiko Miyamoto

Shuichi Shinagawa

Keiichi Noda

Ryusuke Uchida

A solar battery of the present disclosure includes a first electrode; a photoelectric conversion layer; an intermediate layer; and a second electrode that are arranged in this order. The photoelectric conversion layer contains a perovskite compound. The intermediate layer contains a heterocyclic compound, the heterocyclic compound contains one or more and three or less six-membered rings, and at least one of the six-membered rings has 1-position and 4-position each occupied by an element having a lone pair.

Solar battery

A solar cell includes a first electrode, a first electron transport layer, a second electron transport layer, a photoelectric conversion layer, and a second electrode. The photoelectric conversion layer is disposed between the first electrode and the second electrode. The first electron transport layer is disposed between the photoelectric conversion layer and the first electrode. The second electron transport layer is disposed between the first electron transport layer and the first electrode. The first electron transport layer includes carbon and a porous electron transport material.

Solar cell and photoelectric conversion element

The solar cell of the present disclosure includes a first electrode, a photoelectric conversion layer, an intermediate layer, a hole transport layer, and a second electrode in this order, wherein the hole transport layer includes a hole transport material and an oxidant, the photoelectric conversion layer includes a perovskite compound containing iodine, and the intermediate layer includes at least one selected from the group consisting of bromide, chloride, and fluoride.

Solar cell

A light-absorbing material contains a compound represented by the composition formula HC(NH)SnIand having a perovskite structure. A solid-stateH-NMR spectrum, which is obtained byH-N HMQC measurement in two-dimensional NMR at 25&#xb0; C., of the compound includes a first peak at 6.9 ppm and a second peak at 7.0 ppm. A peak intensity of the first peak is equal to 80% or more of a peak intensity of the second peak.

Light-absorbing material containing compound with perovskite structure and solar cell including the same

A method for reducing carbon dioxide is provided. In the present method, used is an anode electrode comprises a stacked structure of a photoelectric conversion layer, a metal layer, and an InGaN layer (where 0&#x3c;x&#x2264;1). The InGaN layer is of i-type or n-type. The metal layer is interposed between the photoelectric conversion layer and the InGaN layer. When irradiating the anode electrode with light, a first light part included in the light is absorbed by the InGaN layer and a second light part included in the light travels through the InGaN layer. The second light part is absorbed by the photoelectric conversion layer to generate electric power in the photoelectric conversion layer. The second light part has a longer wavelength than the first light part. The carbon dioxide contained in the first electrolyte solution is reduced on the cathode electrode.

Method for reducing carbon dioxide and device used therefor

The present invention provides a method for splitting water. In the present method, first, prepared is a water splitting device comprising: cathode and anode containers in which first and second electrolyte solutions are stored respectively; a proton exchange membrane disposed therebetween; a cathode electrode in contact with the first electrolyte solution and comprises a metal or metal compound; and an anode electrode in contact with the second electrolyte solution and comprises a nitride semiconductor layer. Then, the anode electrode is irradiated with light to split water contained in the first electrolyte solution. The anode electrode comprises a cobalt oxide layer formed of CoOas a main component on a surface of the nitride semiconductor layer; the surface of the nitride semiconductor layer being in contact with the second electrolyte solution. The cathode electrode is electrically connected to the anode electrode without an external power supply.

Water splitting method

In a method for generating formic acid by reducing carbon dioxide, a formic acid generation apparatus is prepared. The apparatus includes: a cathode container for storing a first electrolyte solution containing carbon dioxide; an anode container for storing a second electrolyte solution; a solid electrolyte membrane sandwiched between the cathode and anode containers; a cathode electrode provided in the cathode container in contact with the first electrolyte solution, the cathode electrode having a gallium oxide region on a surface thereof; an anode electrode provided in the anode container in contact with the second electrolyte solution; and an external power supply for applying a negative voltage and a positive voltage to the cathode electrode and the anode electrode, respectively. A negative voltage and a positive voltage are applied to the cathode electrode and the anode electrode, respectively, using the external power supply to generate formic acid on the cathode electrode.

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Osaka, Japan

Takeyuki Sekimoto