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Planar inverted translucent organic/inorganic hybrid perovskite solar cell device and preparation method thereof

A solar cell and perovskite technology, applied in semiconductor/solid-state device manufacturing, organic semiconductor devices, electric solid-state devices, etc., can solve the problems of poor electron blocking ability and reducing the photoelectric conversion efficiency of planar flip-chip perovskite cells

Active Publication Date: 2016-12-21
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0006] The planar inverted translucent perovskite cell device structure is a hybrid film of ITO / polyethylenedioxythiophene and polystyrene sulfonate sodium (PEDOT:PSS) / perovskite / phenyl-C61-butyric acid methyl ester (PC 61 BM) / silver (Ag), where the anode: PEDOT:PSS and perovskite is not optimal interface contact, PEDOT:PSS highest occupied orbital energy level (-5.1eV) and perovskite valence band energy level ( -5.4eV) does not match, and PEDOT:PSS electron blocking ability is poor; while on the cathode side: PC 61 The lowest unoccupied orbital energy level of BM (-4.2eV) does not match the conduction band energy level of perovskite (-3.9eV). Perovskite cells, thereby reducing the photoelectric conversion efficiency of planar flip-chip perovskite cells

Method used

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  • Planar inverted translucent organic/inorganic hybrid perovskite solar cell device and preparation method thereof
  • Planar inverted translucent organic/inorganic hybrid perovskite solar cell device and preparation method thereof
  • Planar inverted translucent organic/inorganic hybrid perovskite solar cell device and preparation method thereof

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Embodiment

[0030] Pre-cut the ITO conductive glass with a square resistance of ~20Ω / □ into 15mm×15mm square pieces. Use acetone, special detergent for micron-sized semiconductors, deionized water, and isopropanol to clean ultrasonically in sequence, and then place it in a constant temperature oven for later use after purging with nitrogen. Before use, the ITO clean sheet was bombarded with plasma in an oxygen plasma etcher for 4 minutes, spin-coated NiO ethanol solution to obtain a film with a final film thickness of 30 nm, and annealed at 300 °C for 3 hours in an atmospheric environment, and then the substrate was Soak in the isopropanol solution of diethanolamine for 10 minutes, blow dry with nitrogen, and transfer to the glove box to spin-coat the perovskite active layer material CH 3 NH 3 PB 3 , the configuration mass concentration is 15% photoactive layer material (solvent is γ-hydroxybutyrolactone: dimethyl sulfoxide N, N-dimethylformamide = 7:3), 500rpm, 10s and 5000rpm, 60s, A...

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Abstract

The invention provides a planar inverted translucent organic / inorganic hybrid perovskite solar cell device and a preparation method thereof. The device comprises a substrate, an anode layer, a hole transport layer, a single molecular modification layer, a perovskite layer, an electron transport layer, a cathode modification layer and a cathode layer from the bottom to the top. The hole transport layer is a mixed film of polyethylene dioxythiophene and sodium polystyrenesulfonate, a homopolymer or copolymer of polyaniline, a homopolymer or copolymer of polycarbazole, cuprous thiocyanate, a nickel oxide film, cuprous oxide, a molybdenum oxide film, a vanadium oxide film or a tungsten oxide film. The electron transport layer is a fullerene or fullerene derivative. According to the invention, great energy level matching is realized to improve the open-circuit voltage of the planar inverted translucent organic / inorganic hybrid perovskite solar cell and the conversion efficiency of energy and filling factors, and the high-performance translucent planar inverted organic / inorganic hybrid perovskite solar cell device is acquired.

Description

technical field [0001] The invention relates to the field of organic / inorganic hybrid perovskite photovoltaic technology, in particular to a plane inverted translucent organic / inorganic hybrid perovskite solar cell device and a preparation method. Background technique [0002] With the increasing global demand for energy, the depletion of traditional energy sources such as oil and coal, and the need to protect the earth's ecological environment, more and more scientists around the world are focusing their research on inexhaustible hydrogen, solar energy, etc. Inexhaustible renewable clean energy. [0003] Mature solar cells based on inorganic materials such as inorganic silicon, gallium arsenide, and indium phosphide have dominated the market. However, due to their high requirements for material purity, problems such as high energy consumption and pollution will occur during processing, and Its price is very expensive, so its large-scale application is limited in today's pu...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/48
CPCH10K85/211H10K30/10H10K2102/00Y02E10/549Y02P70/50
Inventor 叶轩立薛启帆夏若曦
Owner SOUTH CHINA UNIV OF TECH
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