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

A technology of solar cells and manufacturing methods, applied in semiconductor/solid-state device manufacturing, circuits, capacitors, etc., can solve problems such as large hysteresis, achieve the effects of improving characteristics, making up for surface defects, and preventing battery efficiency from decreasing

Active Publication Date: 2019-01-04
KOREA RES INST OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the hysteresis is large and rapid deterioration occurs, and the development of a technology that can improve the stability and life of the battery is required for actual commercialization.

Method used

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

Examples

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Embodiment Construction

[0063] Hereinafter, the perovskite-based solar cell and its manufacturing method of the present invention will be described in detail with reference to the drawings. The drawings described below are provided as examples in order to fully convey the idea of ​​the present invention to those skilled in the art. Therefore, the present invention is not limited to the drawings presented below, but may be realized in other forms, and the drawings presented below may be shown exaggeratedly in order to clarify the idea of ​​the present invention. At this time, if there is no other definition, the used technical terms and scientific terms have the meanings commonly understood by those skilled in the art to which the invention belongs. Explanation of known functions and configurations.

[0064] In the present invention, the perovskite-based solar cell refers to a solar cell including an organometallic halide having a perovskite structure as a light absorber.

[0065] The perovskite-bas...

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Abstract

The invention relates to a perovskite solar cell with a wide band-gap and a fabrication method thereof, and more particularly, the perovskite solar cell including an organometal halide layer having aperovskite 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.

Description

technical field [0001] The present invention relates to a perovskite-based solar cell with a wide bandgap and a method for producing the same. More specifically, it relates to a perovskite-based solar cell that utilizes a wide bandgap to compensate for defects, increase photoelectric charge extraction efficiency, and prevent deterioration due to an external environment containing moisture. Solar cells and methods for their manufacture. Background technique [0002] Perovskite-structured organometallic halides, also known as organometal halide perovskite compounds or organic-inorganic metal halides, consist of organic cations (A), metal cations (M) and halide anions (X ) is composed of AMX 3 The chemical formula is the representative substance. [0003] At present, perovskite solar cells using organic-inorganic metal halides as light absorbers are the closest to commercialization in the next-generation solar cells represented by dye-sensitized and organic solar cells, and a...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/40H10K30/50H10K85/50H10K30/451H10K30/151Y02E10/549H01L2031/0344H10K71/441H10K85/631H10K30/20H10K85/30H01G9/2009
Inventor 徐章源全男中梁泰烈鲁俊洪郑义赫
Owner KOREA RES INST OF CHEM TECH