Perovskites' solar promise

Ornes, Stephen

doi:10.1088/2058-7058/28/5/38

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“…The first perovskite was the mineral calcium titanate (CaTiO 3 ) with a bandgap of 3.46 eV which is potentially manufacturable by sintering CaO and TiO 2 derived from lunar resources at 900 ° C – perovskite crystals may be manufactured into thin films from salt solution or sol–gel methods. 34 Methylammonium lead trihalide (CH 3 NH 3 PbX 3 ) is the most widely adopted perovskite offering photovoltaic efficiencies over 20% matching silicon but do not tolerate UV exposure and moisture (so require encapsulation in glass). 35 However, perovskite energy conversion is high only for small-scale cells and do not scale up to uniformity due to ion migration under illumination.…”

Section: Introductionmentioning

confidence: 99%

Generating and storing power on the moon using in situ resources

Ellery

2021

Proceedings of the Institution of Mechanical Engineers, Part G:

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The Moon Village and similar concepts are strongly reliant on in situ resource utilisation (ISRU). There is great interest in harvesting solar power using locally leveraged in situ resources as an essential facet of in situ infrastructure. Traditionally, silicon-based photovoltaic cells have been assumed, preferably manufactured in situ using a 3D printing rover, but there are major difficulties with such scenarios. Solar cells require pre-processing of regolith and solar cell manufacture. We present an alternative lunar resource leveraged-solar power production system on the Moon which can yield high conversion efficiencies – solar Fresnel lens-thermionic conversion. The thermionic vacuum tube is constructed from lunar-derived materials and NiFe asteroidal ores on the Moon. Given that the majority of energy required for ISRU is thermal, thermionic conversion exploits this energy source directly. Silicates such as anorthite can be treated with acid to yield alumina and silicic acid in solution from which pure silica can be precipitated. Pure silica when heated to high temperature yields fused silica glass which is transparent – fused silica glass may be employed to manufacture Fresnel lenses and/or mirrors. Both silica and alumina may be input to the Metalysis Fray Farthing Chen Cambridge electrolytic process to yield near pure Si and near pure Al, respectively.

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Section: Introductionmentioning

confidence: 99%

Generating and storing power on the moon using in situ resources

Ellery

2021

Proceedings of the Institution of Mechanical Engineers, Part G:

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show abstract

Perovskites' solar promise

Cited by 1 publication

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Generating and storing power on the moon using in situ resources

Generating and storing power on the moon using in situ resources

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