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Perovskite battery based on nanometer oxide electron transfer layer

An electron transport layer, nano-oxide technology, applied in the fields of nanotechnology, nanotechnology, nanotechnology for materials and surface science, can solve the problems of many structural and chemical defects, good results, charge recombination, etc. The effect of low growth temperature, high quality and simple preparation process

Inactive Publication Date: 2014-07-02
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

They fabricated perovskite cells using different transport materials at all low temperatures, but the results were not as good as those of titania transport layer cells prepared at high temperatures
The main reason is that the interface of the perovskite battery obtained at low temperature is poor, and there are many structural and chemical defects, which makes the charge recombination serious and reduces the battery efficiency.

Method used

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  • Perovskite battery based on nanometer oxide electron transfer layer

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Embodiment 1

[0013] On the transparent substrate as the first electrode, a layer of zinc oxide thin film was prepared by atomic layer deposition as the electron transport layer; the light-absorbing layer of the perovskite structure was laminated on the electron transport layer; the hole transport layer was laminated on the light-absorbing layer of the perovskite structure layer; the counter electrode is stacked on the hole transport layer. That is, a perovskite battery based on a nano-oxide electron transport layer is obtained.

Embodiment 2

[0015] On the transparent substrate as the first electrode, a layer of zinc oxide thin film is prepared by atomic layer deposition, and then a layer of zinc oxide nanorods is prepared by chemical hydrothermal method at a temperature lower than 150°C, and the zinc oxide thin film and nanorods are used together as the The electron transport layer; the perovskite structure light absorption layer is stacked on the electron transport layer; the hole transport layer is stacked on the perovskite structure light absorption layer; the counter electrode is stacked on the hole transport layer. That is, a perovskite battery based on a nano-oxide electron transport layer is obtained.

Embodiment 3

[0017] On the transparent substrate as the first electrode, a layer of zinc oxide film was prepared at low temperature (below 160°C) by atomic layer deposition, and then a layer of zinc oxide nanorods were prepared by chemical method at a temperature below 150°C, and then used A layer of titanium dioxide film is coated on the surface of zinc oxide nanorods by atomic layer deposition, and the zinc oxide film and zinc oxide nanorods coated with titanium oxide are used as the electron transport layer; the perovskite structure light-absorbing layer is laminated on the electron transport layer; The hole transport layer is stacked on the perovskite structure light absorbing layer; the counter electrode is stacked on the hole transport layer. That is, a perovskite battery based on a nano-oxide electron transport layer is obtained.

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Abstract

The invention discloses a perovskite battery based on a nanometer oxide electron transfer layer. According to the structure, the perovskite battery comprises a first electrode, the nanometer oxide electron transfer layer, a perovskite structure light absorption layer, a hole transporting layer and a counter electrode. A two-dimension nanometer structure is a nanoscale titanium dioxide film and a zinc oxide film or a multiple-layer film based on titanium dioxide, zinc oxide and aluminum oxide. A one-dimension nanometer structure is nanoscale titanium dioxide and zinc oxide which are in the shape of a tube or a wire or a rod or a composite nanoscale structure which is in the shape of a tube or a wire or a rod and based on titanium dioxide, zinc oxide and aluminum oxide. The perovskite battery based on the nanometer oxide electron transfer layer has the advantages that the manufacturing process is simple, the growth temperature of the nanometer oxide electron transfer layer is low, and the quality of the nanometer oxide electron transfer layer is high; in addition, the perovskite battery based on the nanometer oxide electron transfer layer can be used in not only a hard substrate but also a flexible substrate.

Description

technical field [0001] The invention belongs to the technical field of new materials, relates to the preparation technology of photoelectric materials, and specifically refers to a perovskite battery using nanometer oxide as an electron transport layer. Background technique [0002] With the increasing consumption of non-renewable energy in the world, energy shortage and environmental degradation have become more and more serious problems faced by people in the new century. The development and utilization of clean and renewable energy has attracted more and more attention. Solar energy is an inexhaustible green energy source. The development of photovoltaic devices to effectively convert solar energy into electrical energy provides an important way to solve energy problems. [0003] In solar photovoltaic technology, silicon photovoltaic cells dominate all kinds of photovoltaic devices due to their mature technology and high photoelectric conversion efficiency. However, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0264
CPCB82Y30/00H10K30/00H10K2102/00Y02E10/549H10K85/50
Inventor 董文静陈鑫张克难魏调兴张云孙艳戴宁
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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