What are the key materials and processes involved in building a GaAs solar cell?
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The key materials and processes involved in building a GaAs solar cell include the use of sacrificial layers, such as lattice-matched AlAs or water-soluble alkaline earth compounds, to separate the grown GaAs device from the GaAs wafer . Other materials used in GaAs solar cells include a CuSCN hole transport layer, a graphene layer, and a silver paste top electrode . Additionally, a CuS hydrophobic layer can be used to prevent contact between GaAs and water, reduce defects in the transfer process of graphene, and improve carrier lifespan . The fabrication process of a GaAs solar cell involves steps such as gluing the epitaxial wafer, performing corrosion and photoresist removal, evaporating electrodes, performing thermal treatment, and applying anti-reflection film . In the case of GaAs//Si-based multijunction solar cells, a stacking method using Pd nanoparticles and metal-assisted chemical etching is used for the bonding interface, improving bonding resistivity and efficiency .
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| The key materials involved in building a GaAs solar cell are an epitaxial wafer, corrosion and photoresist removal agents, upper and lower electrodes, thermal treatment agents, CAP layer corrosion agents, and anti-reflection film deposition materials. The key processes include gluing, pre-baking, corrosion, photoresist removal, pattern photoetching, evaporation of electrodes and anti-reflection film, thermal treatment, marking, and CAP layer corrosion. | |
| The key materials involved in building a GaAs solar cell are an Au bottom electrode, a GaAs substrate, a CuS hydrophobic layer, a graphene layer, and a silver paste top electrode. The paper also describes a preparation method for the GaAs solar cell. | |
| The key materials involved in building a GaAs solar cell are an Au back electrode, a GaAs substrate, a CuSCN hole transport layer, a graphene layer, and a silver paste top electrode. The paper also provides a preparation method for the GaAs solar cell. | |
05 Jun 2022 | The key materials involved in building a GaAs solar cell are GaAs (gallium arsenide) for the device film and water-soluble alkaline earth compounds for the sacrificial layer. The key process involved is the epitaxial lift-off method, which includes selective etching of the sacrificial layer and reusing the substrate. |
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