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Light trapping substrate, preparation method and application thereof, and semitransparent solar cell

A solar cell, translucent technology, used in photovoltaic power generation, circuits, electrical components, etc., can solve problems such as damage to solar cell performance

Active Publication Date: 2021-06-04
HKUST SHENZHEN RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the above performance, M. etc. (M. W. Zhang; M. Saliba; K. Wojciechowski; H. Snaith, Energy & Environmental Science 2015, 8(7), 2041-2047; Designing nanobowl arrays of mesoporous TiO 2 As an alternative electron transporting layer for carbon cathode-based perovskite solar cell) a similar moth-eye structure (MC) ITO conductive glass substrate was prepared by solution method; but the ITO conductive glass substrate with moth-eye structure prepared by solution method The bottom will produce cracks during the calcination process, because these cracks may lead to direct contact between the photosensitive layer perovskite and the bottom electrode, resulting in a short-circuit current, which will greatly damage the performance of the solar cell

Method used

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  • Light trapping substrate, preparation method and application thereof, and semitransparent solar cell
  • Light trapping substrate, preparation method and application thereof, and semitransparent solar cell
  • Light trapping substrate, preparation method and application thereof, and semitransparent solar cell

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preparation example Construction

[0033] The invention provides a method for preparing an optical trap substrate, comprising the following steps:

[0034] Mix polystyrene colloidal sphere (PS) suspension, ethanol and phosphoric acid to obtain polystyrene solution;

[0035] placing the transparent conductive substrate at the bottom of a container filled with water, sliding the polystyrene solution into the water surface, allowing it to stand, and adding sodium lauryl sulfate dropwise to obtain polystyrene colloidal balls with an array structure;

[0036] The polystyrene colloidal balls of the array structure are transferred to the transparent conductive substrate by means of siphon, and after oxygen plasma treatment, a transparent conductive material layer is deposited to remove the polystyrene colloidal balls after the oxygen plasma treatment. Vinyl colloidal spheres to obtain the light-trapping substrate.

[0037] In the present invention, unless otherwise specified, all raw material components are commercia...

Embodiment 1

[0077] Such as figure 1 The shown semi-transparent solar cell fabrication process performs the following semi-transparent solar cell fabrication:

[0078] 400 μL of polystyrene colloidal sphere suspension with a solid content of 10% and a diameter of 1 μm, 1200 μL of ethanol and 400 μL of phosphoric acid with a mass concentration of 42.5% were mixed under ultrasonic conditions for 15 minutes to obtain a polystyrene solution;

[0079] After the ITO conductive glass is ultrasonically cleaned with detergent, acetone, isopropanol and deionized water in sequence, it is dried with nitrogen to obtain a cleaned ITO conductive glass;

[0080] Place the cleaned ITO conductive glass at the bottom of a container filled with deionized water, slide the polystyrene solution into the water surface, and make the single-layer PS balls float on the water surface. 100 μL sodium lauryl sulfate was added dropwise at a dropping rate of 100 μL to obtain polystyrene colloidal spheres with an array st...

Embodiment 2

[0088] The preparation method refers to Example 1, the difference is that the time of the oxygen plasma treatment is 10min.

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Abstract

The invention relates to the technical field of photovoltaic cells, in particular to a light trapping substrate, a preparation method and application thereof and a semitransparent solar cell. The light trapping substrate prepared by the preparation method has a moth eye microcavity structure, and the light trapping substrate can enhance the absorption of the ST-PSC on photons which are weakly perceived by human eyes, so that the ST-PSC with high efficiency and high AVT is prepared, the color of the ST-PSC can be changed, and the ST-PSC close to light neutrality can be prepared.

Description

technical field [0001] The invention relates to the technical field of photovoltaic cells, in particular to a light-trapping substrate, a preparation method and application thereof, and a semi-transparent solar cell. Background technique [0002] Global rapid urbanization and environmental pollution have prompted people to seek a low-carbon and renewable new energy. Solar energy is the most abundant sustainable energy source in the world. However, the application of photovoltaics is hindered due to the relatively high cost. At the same time, buildings are very energy-intensive, and in 2018 photovoltaics accounted for only 3% of total global energy demand. According to the 2016 U.S. Commercial Building Energy Consumption Survey Report, the annual electricity consumption of buildings is 25TWh, accounting for about 40% of the total energy consumption. In addition, there are substantial power losses during power distribution. [0003] Green buildings should follow sustainabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/44H01L51/42H01L51/48
CPCH10K71/00H10K77/10H10K30/00H10K30/87Y02E10/549
Inventor 范智勇朱奕漪束磊张千鹏王琛
Owner HKUST SHENZHEN RES INST