Organic-inorganic hybrid solar cell

A solar cell and organic technology, applied in the direction of palladium organic compounds, lead organic compounds, platinum group organic compounds, etc., can solve the problems of low efficiency, time and cost reduction, etc., to increase the interface area, reduce the loss of light energy, time and / or cost-effective effect

Active Publication Date: 2016-12-14
LG CHEM LTD
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  • Application Information

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Problems solved by technology

However, liquid-type dye-sensitized solar cells have relatively high efficiency and thus are likely to be commercialized, but there are time-dependent stability problems caused by volatile liquid electrolytes and degradation caused by the use of expensive ruthenium (Ru)-based dyes. cost problem
In order to solve the problem, studies have been conducted on the use of non-volatile electrolytes (using ionic solvents instead of volatile liquid electrolytes), the use of polymer gel-type electrolytes, the use of inexpensive pure organic material dyes, etc., but there are problems in that, Lower efficiency than dye-sensitized solar cells using volatile liquid electrolytes and Ru-based dyes

Method used

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Examples

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Embodiment 1

[0169]Fabrication of organic-inorganic hybrid solar cells with Al / Si / Si NW / perovskite / spiro-OmeTAD / PH500 / Ag grid structure.

[0170] Specifically, an n-type silicon (100) wafer on Al was immersed in a hydrofluoric acid solution to which silver nitride was added, and chemical etching was used to fabricate silicon nanowires (SiNWs). Lead iodide (PbI) dissolved in dimethylformamide (DMF) 2 ) solution and then dried for 5 minutes, the silicon nanowires were immersed in methylammonium iodide (CH 3 NH 3 1) Tens of seconds, then dry.

[0171] 2,2',7,7'-tetrakis-(N,N-di-4-methoxyphenylamino)-9,9'-spirobifluorene (spiro-OMeTAD), 4-tert-butyl Pyridine and lithium bis(trifluoromethane)sulfonylimide (Li-TFSI) were dissolved in chlorobenzene, and the resulting solution was spin-coated. After coating with PEPOT:PSS (PH500), at 1x10 -7 Deposit silver gates under torr vacuum.

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Abstract

In the present specification, an organic-inorganic hybrid solar cell is provided, which comprises: a first electrode; a second electrode provided opposite the first electrode; a light active layer provided between the first electrode and the second electrode; and a silicon material layer provided between the light active layer and the first electrode. The light active layer includes a perovskite structure compound.

Description

technical field [0001] This application claims priority and benefit from Korean Patent Application No. 10-2014-0048916 filed in the Korean Intellectual Property Office on Apr. 23, 2014, the entire contents of which are incorporated herein by reference. [0002] The present invention relates to organic-inorganic hybrid solar cells. Background technique [0003] In order to solve global environmental problems caused by the depletion of petroleum fuels and their use, research on renewable and clean alternative energy sources such as solar energy, wind energy, and water energy has been actively conducted. Among these, interest in solar cells that directly convert electrical energy from sunlight has increased significantly. Here, the solar cell means a cell that generates a current-voltage by absorbing light energy from sunlight to use a photovoltaic effect of generated electrons and holes. [0004] At present, n-p diode-type silicon (Si) single crystal solar cells with light e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46C01G1/06
CPCH01L31/04C07F15/006C07F7/24Y02E10/549Y02E10/542H10K85/633H10K85/30H10K30/15H10K30/10H10K85/50H10K85/624H01G9/2009H01G9/2031H01G9/2036H01G9/204H01L2031/0344
Inventor 李幸根张松林李载澈金填硕崔斗焕方志原李东龟
Owner LG CHEM LTD
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