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A planar inverted translucent organic/inorganic hybrid perovskite solar cell device and its preparation method

A solar cell, translucent 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: 2019-05-14
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The planar inverted translucent perovskite cell device structure is a hybrid film of ITO / polyethylenedioxythiophene and polystyrene sodium sulfonate (PEDOT:PSS) / perovskite / phenyl-C61-butyric acid methyl ester (PC 61 BM) / silver (Ag), in which 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) mismatch, and PEDOT:PSS has poor electron blocking ability; 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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  • A planar inverted translucent organic/inorganic hybrid perovskite solar cell device and its preparation method
  • A planar inverted translucent organic/inorganic hybrid perovskite solar cell device and its preparation method
  • A planar inverted translucent organic/inorganic hybrid perovskite solar cell device and its preparation method

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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 nanometers, and annealed at 300 ° C for 3 hours in an atmospheric environment, and then the substrate 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 , configure a mass concentration of 15% photoactive layer material (solvent is γ-hydroxybutyrolactone: dimethyl sulfoxide = 7:3), 500rpm, 10s and 5000rpm, 60s, drop 0.15 ml of toluene s...

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Abstract

The invention discloses a planar inverted translucent organic / inorganic hybrid perovskite solar cell device, which comprises a substrate, an anode layer, a hole transport layer, a single molecule modification layer, a perovskite layer, and an electron transport layer from bottom to top. , cathode modification layer and cathode layer; the hole transport layer is a mixed film of polyethylene dioxythiophene and sodium polystyrene sulfonate, a homopolymer or copolymer of polytriphenylamine, a homopolymer of polycarbazole Or copolymer, cuprous thiocyanate, nickel oxide film, cuprous oxide, molybdenum oxide film, vanadium oxide film or tungsten oxide film; the electron transport layer is fullerene or fullerene derivatives. The invention achieves good energy level matching so as to achieve the purpose of improving the open circuit voltage, fill factor and energy conversion efficiency of the planar inverted translucent organic / inorganic hybrid perovskite solar cell, and can obtain high-performance translucent planar inverted organic / inorganic Hybrid perovskite solar cell devices.

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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Patent Type & Authority Patents(China)
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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