Korea Research Institute of Chemical Technology

Ulsan National Institute of Science and Technology

Nam Joong Jeon

Jang Won Seo

Jun Hong Noh

Sang Il Seok

Jaemin Lee

Tae Youl Yang

Hye Jin Na

Jangwon Seo

Young Chan Kim

Sang-Il Seok

Hak Guen Lee

Eui Hyuk Jung

Wook Seok Yang

A spirobifluorene compound and a perovskite solar cell including the spirobifluorene compound are disclosed. More particularly, a spirobifluorene compound which can be used as a hole transport material of a perovskite solar cell is disclosed. A perovskite solar cell including the spirobifluorene compound as a hole transport material is further disclosed.

Spirobifluorene compound and perovskite solar cell comprising same

Provided is a perovskite solar cell, and more particularly, a perovskite solar cell including an organometal halide layer having a perovskite structure; and a crystalline material layer stacked while forming an interface with the organometal halide layer, wherein a crystalline material of the crystalline material layer is a crystalline halide having a crystal structure different from the perovskite structure, and the crystalline halide has a band gap energy higher than a band gap energy of an organometal halide of the organometal halide layer, and has a valence band maximum energy level lower than a valence band maximum energy level of the organometal halide.

Perovskite solar cell with wide band-gap and fabrication method thereof

A perovskite solar cell adopts a compound having a specific central backbone having a carbazolylamino group as a substituent, and more particularly, to the perovskite solar cell adopts a compound, as a hole transport material, having a specific central backbone having a carbazolylamino group as a substituent, and a spirobifluorene compound having a carbazolylphenylamino group. The perovskite solar cell has very excellent high-temperature stability while having a high power generation efficiency.

Perovskite solar cell

The present invention relates to an inorganic/organic hybrid perovskite compound film. An inorganic/organic hybrid perovskite compound film according to the present invention is polycrystalline, and has a discontinuous (100) plane scattering intensity on a grazing incidence wide angle x-ray scattering (GIWAXS) spectrum obtained using an x-ray wavelength of 1.0688 &#x212b;.

Inorganic/organic hybrid perovskite compound film, and method for manufacturing same

The present invention relates to a method for preparing an inorganic/organic hybrid perovskite compound film, and a structure for a solar cell and, specifically, a method for preparing an inorganic/organic hybrid perovskite compound film, according to one embodiment of the present invention, can comprise the steps of: a) forming, on a substrate layer, an adduct layer containing an adduct of halogenated metal and guest molecule; and b) preparing an inorganic/organic hybrid perovskite compound film by reacting the adduct layer and an organic halide.

Method for preparing inorganic/organic hybrid perovskite compound film

A method for manufacturing a device comprising an inorganic/organic hybrid perovskite compound film, according to the present invention, comprises the steps of: a) laminating a first structure and a second structure to allow the first surface layer and the second surface layer to be in contact with each other, the first structure comprising a first surface layer containing at least one of materials i) to v) below, the second structure comprising a second surface layer containing, independently from the first surface layer, at least one of materials i) to v) below; and b) applying heat and physical force to the laminate in which the first structure and the second structure are laminated: i) an inorganic/organic hybrid perovskite compound, ii) an organic halide, iii) a metal halide, iv) an inorganic/organic hybrid perovskite compound precursor, and v) a metal halide precursor.

Method for manufacturing device comprising inorganic/organic hybrid perovskite compound film and device comprising inorganic/organic hybrid perovskite compound film

Provided is a precursor of an inorganic/organic hybrid perovskite compound, and the precursor of the precursor of the inorganic/organic hybrid perovskite compound according to an exemplary embodiment of the present invention includes an organic positive ion, a metal positive ion, a halogen negative ion, and a guest molecule (GM).

Precursor of inorganic/organic hybrid perovskite compound

Provided is a hole-transporting compound having a novel structure, and more particularly, a hole-transporting compound for an inorganic/organic hybrid perovskite solar cell. An inorganic/organic hybrid perovskite-based solar cell using the hole-transporting compound according to the present invention has significantly high power generation efficiency.

Growing community of inventors

Gwangju, South Korea

Nam Joong Jeon