Kaneka Corporation

Ryota Mishima

Tomomi Meguro

Masashi Hino

Kenji Yamamoto

Hisashi Uzu

Daisuke Adachi

Takashi Kuchiyama

Kunihiro Nakano

Katsunori Konishi

Mitsuru Ichikawa

Takashi Suezaki

The method for manufacturing a solar cell includes: forming a first semiconductor layer of first conductivity type on a surface of a semiconductor substrate; forming a lift-off layer containing a silicon-based material on the first semiconductor layer; selectively removing the lift-off layer and first semiconductor layer; forming a second semiconductor layer of second conductivity type on a surface having the lift-off layer and first semiconductor layer; and removing the second semiconductor layer covering the lift-off layer by removing the lift-off layer using an etching solution. The linear expansion coefficients of the semiconductor substrate and the lift-off layer satisfy the relational expression: the linear expansion coefficient of the lift-off layer &#x3c;the linear expansion coefficient of the semiconductor substrate, and the forming of the second semiconductor layer or the removing of the second semiconductor layer is performed at a temperature higher than the temperature in the forming of the lift-off layer.

Method for manufacturing solar cell

A method for manufacturing a stacked photoelectric conversion device includes forming an intermediate transparent conductive layer on a light-receiving surface of a crystalline silicon-based photoelectric conversion unit including a crystalline silicon substrate, and forming a thin-film photoelectric conversion unit on the intermediate transparent conductive layer. The stacked photoelectric conversion device includes the crystalline silicon-based photoelectric conversion unit, the intermediate transparent conductive layer, and the thin-film photoelectric conversion unit. The light-receiving surface of the crystalline silicon-based photoelectric conversion unit has a textured surface including a plurality of projections and recesses. The textured surface has an average height of 0.5 &#x3bc;m or more. The intermediate transparent conductive layer fills the recesses of the textured surface and covers the tops of the projections of the textured surface. At least a part of the thin-film photoelectric conversion unit is deposited by a wet method.

Stacked photoelectric conversion device and method for producing same

A tandem-type photoelectric conversion device includes, arranged in the following order from a light-incident side: a first photoelectric conversion unit; an anti-reflection layer; a transparent conductive layer; and a second photoelectric conversion unit. The first photoelectric conversion unit includes a light absorbing layer including a photosensitive material of perovskite-type crystal structure represented by general formula RNHMXor HC(NH)MX, wherein Ris an alkyl group, Mis a divalent metal ion, and X is a halogen. The second photoelectric conversion unit includes a light absorbing layer having a bandgap narrower than a bandgap of the light absorbing layer in the first photoelectric conversion unit. The anti-reflection layer and the transparent conductive layer are in contact with each other, and a refractive index of the anti-reflection layer is lower than a refractive index of the transparent conductive layer.

Photoelectric conversion device and photoelectric conversion module

A sample-holding device for holding and lifting a sample includes a sample-holding surface facing the sample; and a positioning member provided at a peripheral part of the sample-holding surface, the positioning member comprising a contact part having an outward-facing part on a back side thereof; a first rounded or chamfered end; and a second rounded or chamfered end, wherein the contact part contacts with part of the sample when the sample is held or when the sample is off-point, wherein the first end is an end of a section comprising the contact part or a part smoothly continuing from the contact part, the end being on a distant side from the sample-holding surface, and the second end is an end of the outward-facing part, the end being located on a tipping side of the outward-facing part.

Sample-holding device, method for manufacturing solar cell, and method for manufacturing solar cell module

A multi-junction photoelectric conversion device includes, in the following order from a light-receiving side: a first photoelectric conversion unit; an intermediate layer; and a second photoelectric conversion unit. The first photoelectric conversion unit includes: a first light absorbing layer comprising a perovskite-type crystal structure photosensitive material; a first charge transport layer on the light-receiving side of the first light absorbing layer; and a second charge transport layer on a rear side of the first light absorbing layer. The second charge transport layer is in contact with the intermediate layer. The second photoelectric conversion unit includes: a second light absorbing layer that is a crystalline silicon substrate; and a first conductive semiconductor layer that is in contact with the intermediate layer.

Growing community of inventors

Osaka, Japan

Ryota Mishima