Investigation of in-plane heat distribution, thermal stability and mechanical properties of SS-(Fe3O4)/Ti/AlN/Ti/SiO2 as absorber coatings for efficient high temperature concentrated solar power systems

Bello, Mutawalli; Shanmugan, S.

doi:10.1016/j.jallcom.2021.163576

Cited by 5 publications

(1 citation statement)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To adopt rolled (or high-gloss) SS substrates for PV demands, the steel industry offers the deposition of intermediate layers for simultaneous surface smoothing, back electrode insulating, and preventing diffusion of various impurities from the SS substrate into the light absorbing layer of thin-film solar cells (TFSCs) for each semiconducting material [ 12 , 13 , 14 ]. Other applications of SS in the PV industry, except for ancillary components, frames, fasteners and connectors, include substrates for solar spectral selective absorbing coatings used in thermo-solar systems [ 15 , 16 , 17 ]. In all of the above-mentioned cases, SS is used as a supporting substrate for flexible solar cell production or deposition of metallic back optical reflectors [ 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Textured Stainless Steel as a Platform for Black Mg2Si/Si Heterojunction Solar Cells with Advanced Photovoltaic Performance

et al. 2022

View full text Add to dashboard Cite

This paper reports on a facile bottom-up method for the direct integration of a silicon (Si)-magnesium silicide (Mg2Si) heterojunction solar cell (HSC) with a textured rear reflector made of stainless steel (SS). Modified wet chemical etching and post processing of SS substrates resulted in the formation of both a rough surface texture and diffusion barrier layer, consisting of magnetite (Fe3O4) with reduced optical reflection. Then, Si, Mg2Si and CaSi2 layers were stepwise thermally evaporated onto the textured SS surface. No traces of Fe and Cr silicide phases were detected by Raman spectroscopy, confirming effective suppression of impurity diffusion from the SS to the upper layers at least at temperatures required for Si deposition, as well as Mg2Si and CaSi2 formation. The obtained black-SS/Fe3O4/Si/Mg2Si/CaSi2 sample preserved, to some extent, its underlying textured morphology and demonstrated an averaged reflection of 15% over the spectral range of 200–1800 nm, while its prototype HSC possessed a wideband photoresponse with a photoelectric conversion efficiency of 7.5% under AM1.5 illumination. Moreover, Si layers deposited alone onto a black-SS substrate demonstrated competitive antireflection properties compared with black Si (b-Si) obtained by traditional top-down etching approaches, and hybrid b-Si/textured-SS structures with a glue-bonded interlayer.

show abstract