The present disclosure relates to a light detection device including: a substrate 100; a lower electrode 200 formed on the substrate; an organic semiconductor layer 300 formed on the lower electrode 200; and an upper electrode 400 formed on the organic semiconductor layer 300, wherein a Schottky contact is formed at least one of a junction between the organic semiconductor layer and the lower electrode or a junction between the organic semiconductor layer and the upper electrode.

The present disclosure relates to a light detection device including: a substrate 100; a lower electrode 200 formed on the substrate; an organic semiconductor layer 300 formed on the lower electrode 200; and an upper electrode 400 formed on the organic semiconductor layer 300, wherein a Schottky contact is formed at least one of a junction between the organic semiconductor layer and the lower electrode or a junction between the organic semiconductor layer and the upper electrode.

The present embodiment provides a semiconductor element that can generate power with high efficiency and has high durability.

A multilayer junction photoelectric conversion element according to an embodiment comrises: a first electrode; a first photoactive layer including a perovskite semiconductor; a first passivation layer; a first doped layer; a second photoactive layer containing silicon; and a second electrode, in this order. The multilayer junction photoelectric conversion element further comprises a light scattering layer including a plurality of mutually separated silicon alloy layers that penetrate a part of the passivation layer and electrically connect the first photoactive layer and the first doped layer. The element can be manufactured by a method including forming a bottom cell including a second active layer and then forming a first photoactive layer by coating.

Various perovskite solar cell embodiments include a flexible metal substrate (e.g., including a metal doped TiO2 layer), a perovskite layer, and a transparent electrode layer (e.g., including a dielectric/metal/dielectric structure), wherein the perovskite layer is provided between the flexible metal substrate and the transparent electrode layer. Also, various tandem solar cell embodiments including a perovskite solar cell and either a quantum dot solar cell, and organic solar cell or a thin film solar cell.

Photoactive materials comprising organic-inorganic hybrid halide perovskite compounds are provided. Photovoltaic cells and light-emitting devices incorporating the photoactive materials into their light-absorbing and light-emitting layers, respectively, are also provided. The halide perovskites have an amAMX.sub.3 perovskite crystal structure, wherein am is an alkyl diamine cation, an aromatic diamine cation, an aromatic azole cation, a cyclic alkyl diamine cation or a hydrazinediium cation; A is a monovalent alkylammonium cation or an alkali metal cation; X is a halide ion or a combination of halide ions; and M is an octahedrally coordinated bivalent metal atom.

A method for preparing a solar cell including the step of cooling a photoelectric conversion layer to a target temperature by a cooling source, thereby introducing internal stress into the cooled photoelectric conversion layer. A solar cell prepared by the method of the present invention is also disclosed.

A manufacturing method of a perovskite film and a composition for preparing the perovskite film. The manufacturing method of the perovskite film comprises a step of manufacturing a first mixed solution, a step of manufacturing a second mixed solution, a low pressure distillation step, a coating step, and a drying step. The technical effect of the present disclosure is to provide the manufacturing method of the perovskite film and the composition for manufacturing the perovskite film, wherein the perovskite film comprises components of a metal halide and an organic halogen salt to adjust absorption wavelengths and emission wavelengths by modulating components and concentration of each component and makes the perovskite film have a higher transmittance in the visible light band. When ultraviolet light illuminates the perovskite film, the perovskite film can produce visible light due to photoluminescence effect of the perovskite material in the perovskite film, thereby achieving display effect.

A solar cell module (100) including: a substrate (1); and a plurality of photoelectric conversion elements disposed on the substrate (1), each of the plurality of photoelectric conversion elements including a first electrode (2a, 2b), an electron transport layer (3, 4), a perovskite layer (5), a hole transport layer (6), and a second electrode (7a, 7b), wherein, within at least two of the photoelectric conversion elements adjacent to each other, the hole transport layers (6) are continuous with each other, and the first electrodes (2a, 2b), the electron transport layers (3, 4), and the perovskite layers (5) are separated by the hole transport layer (6) within the at least two of the photoelectric conversion elements adjacent to each other.

The present disclosure relates to a light detection device including: a substrate 100; a lower electrode 200 formed on the substrate; an organic semiconductor layer 300 formed on the lower electrode 200; and an upper electrode 400 formed on the organic semiconductor layer 300, wherein a Schottky contact is formed at least one of a junction between the organic semiconductor layer and the lower electrode or a junction between the organic semiconductor layer and the upper electrode.

Disclosed are an optical filter including a near infrared absorption layer on a polymer film. The polymer film has a* of about −5.0 to about +5.0 and b* of about −5.0 to about +5.0 in a color coordinate expressed by a CIE Lab color space. The near infrared absorption layer may be configured to transmit light in a visible region and to selectively absorb at least one part of light in a near infrared region. The near infrared absorption layer includes a first near infrared absorption material including a copper phosphate ester compound and a second near infrared absorption material including at least two different organic dyes. The second near infrared absorption material has a maximum absorption wavelength (λ.sub.max) in a wavelength region of about 650 nm to about 1200 nm. An electronic device may include the optical filter.