Ultra-thin plasmonic solar cells, methods for their manufacture and use

A solar cell and plasma technology, which is applied in semiconductor/solid-state device manufacturing, final product manufacturing, sustainable manufacturing/processing, etc., and can solve problems such as metal nanoparticles and plasma solar cells that are not considered

Active Publication Date: 2019-11-22
PEAFOWL SOLAR POWER AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this disclosure does not consider plasmonic solar cells, nor the use of metal nanoparticles as light absorbers

Method used

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  • Ultra-thin plasmonic solar cells, methods for their manufacture and use
  • Ultra-thin plasmonic solar cells, methods for their manufacture and use
  • Ultra-thin plasmonic solar cells, methods for their manufacture and use

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Experimental program
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specific Embodiment approach

[0107] According to a first aspect, the present invention provides a solar cell comprising:

[0108] - an n-type semiconductor layer;

[0109] - a layer of metal nanoparticles selected from the group consisting of copper, gold, silver or aluminum; and

[0110] - a p-type semiconductor layer,

[0111] The above-mentioned layers are sandwiched between the substrate and the back contact; wherein the substrate, n-type semiconductor, metal nanoparticles, p-type semiconductor and back contact are respectively connected by covalent bonds by means of one or more molecular linkers.

[0112] The fundamentals of ultrathin plasmonic solar cells are figure 1 shown in . Such cells are based on localized surface plasmon (LSP) resonance of silver (Ag) nanoparticles used as light absorbers. This is covalently attached to TiO on one side with the aid of 4-aminobenzoic acid (pABA) as a molecular linker 2 (electron acceptor) and on the other side covalently linked to NiO (hole acceptor). I...

example 1

[0203] Example 1. Synthesis of metal nanoparticles

[0204] From corresponding metal precursors such as but not limited to AgNO 3 、CuSO 4 , CuCl 2 or HAuCl 4 , reducing agent and stabilizer to start the synthesis of gold, silver and copper metal nanoparticles. Examples of reducing agents include NaBH 4 , N 2 h 4 , ascorbic acid, betaine, polyols (such as ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol polyethylene glycol). Examples of stabilizers or growth limiting agents include betaines, polyvinylpyrrolidone, polyvinyl acetate, polyols (eg, ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol polyethylene glycol). All reagents were purchased from Sigma-Aldrich / Merck and were of analytical quality.

[0205] The inventors followed the protocol proposed by Dong et al. 2015, which is incorporated herein by reference, varying selected parameters such as component concentrations, solvents, reaction temperature and reac...

example 2

[0210] Example 2. Semiconductor Nanoparticles

[0211] NiO remains one of the best p-type semiconductors, making it the preferred choice for proof-of-concept devices. NiO nanoparticles were synthesized using the following method: Ni(II) acetylacetonate was dissolved in oleylamine and heated to 110°C under vigorous stirring, and then cooled to and kept at 90°C. Next, the borane-triethylamine complex mixed with oleylamine was rapidly injected into the solution at 90 °C and allowed to stand under vigorous stirring for 1 hour. The NiO nanoparticles were then washed with ethanol and finally dispersed in n-tetradecane. This procedure produces particles of approximately 4 nm in diameter. Anatase, a TiO with a particle size of 3 nm and 20 nm, was obtained from Sachtleben Chemie GmbH, Duisburg, Germany 2 Nano powder.

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Abstract

An ultra-thin and highly transparent wafer-type plasmonic solar cell comprises a layer of a conductive transparent substrate, a layer of an n-type semiconductor, a layer made of metal nanoparticles selected from the group consisting of copper, gold or silver, and a layer made of a p-type semiconductor, wherein the substrate, n-type semiconductor, metal nanoparticles and p-type semiconductor respectively are linked by covalent bonds by means of one or more molecular linker/linkers. A method for producing said plasmonic solar cell by self-assembly is disclosed.

Description

technical field [0001] The present disclosure relates to the field of photovoltaics, and in particular to novel ultra-thin and highly transparent wafer-type plasmonic solar cells and methods of manufacturing the same. Background technique [0002] Photovoltaics, the process of directly converting sunlight into electricity, has the potential to make a significant contribution to meeting global energy needs. However, there remain unresolved issues related to sustainability and cost, which must be addressed with increasing urgency. Economical, efficient, safe, stable, and abundant photovoltaic devices will greatly facilitate the integration of renewable energy to meet current energy demands and realize a resource-saving society. [0003] Currently, the prevailing trend is to reduce the thickness of wafer-based solar cells with minimal loss of efficiency in order to save costs. Another trend is efforts to replace toxic elements in formulations. These two improvements, when su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/032H01L31/055H01L31/18H01L51/00H01L51/05
CPCH01G9/2031H01L31/032H01L31/055H01L31/18Y02E10/542Y02E10/52Y02B10/10Y02E10/549H10K30/671H10K10/701H10K30/151H01L31/048H01L31/054H01L31/0481H02S20/22H10K30/82H10K30/152
Inventor 加辛托·德帕瓦萨玛丽娜·弗雷塔格
Owner PEAFOWL SOLAR POWER AB
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