Application of V-groove technology to InP solar cells

Bailey, Sheila G.; Fatemi, Navid S.; Landis, Geoffrey A.; Brinker, D.J.; Faur, M.

doi:10.1109/iciprm.1990.202989

Cited by 4 publications

(6 citation statements)

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“…V-groove geometries are found in a variety of mechanical designs such as deployable mechanisms [1,2], solar absorbers [3][4][5], solar cells [6], thermal radiators [7] and in the natural world. The analysis of radiative heat transfer within systems that contain V-groove geometries (or any cavity geometry) is complicated by the occurrence of multiple reflections within the Vgroove.…”

Section: Introductionmentioning

confidence: 99%

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Total hemispherical apparent radiative properties of the infinite V-groove with specular reflection

Mulford

Collins

Farnsworth

et al. 2018

International Journal of Heat and Mass Transfer

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Multiple reflections in a cavity geometry augment the emission and absorption of the cavity opening relative to a flat surface in a phenomenon known as the cavity effect. The extent of the cavity effect is quantified using apparent absorptivity and apparent emissivity. Analysis of complicated thermal systems is simplified through application of apparent radiative properties to cavity geometries. The apparent radiative properties of a specularly-reflecting, gray, isothermal V-groove have been derived analytically, but these results have not been validated experimentally or numerically. Additionally, the model for apparent absorptivity of an infinite Vgroove subjected to partial illumination in the presence of collimated irradiation is not available. In this work, the following existing models for a specularly-reflecting V-groove are collected into a single source: (1) the apparent absorptivity of a diffusely irradiated V-groove, (2) the apparent emissivity of an isothermal V-groove and (3) the apparent absorptivity of a V-groove subject to collimated irradiation with full-illumination. Further, a new analytical model is developed to predict the apparent absorptivity of an infinite V-groove subject to collimated irradiation with partial-illumination. A custom, Monte Carlo ray tracing solver is used to predict the apparent radiative properties for all cases as a means of numerical verification by comparing the ray tracing data with the results from the new model in this work and the previously existing models. For diffuse irradiation, the analytical model and ray tracing data show excellent agreement with an average discrepancy of 4.4 x 10-4 , verifying the diffuse-irradiation analytical model. Similar

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Section: Introductionmentioning

confidence: 99%

“…The sum total of both sides is divided by the product of the projected area of the V-groove cavity and the incoming radiative flux. The radiative flux terms cancel in the numerator and denominator to give the following apparent absorptivity for a fully illuminated V-groove (6).…”

mentioning

confidence: 99%

Total hemispherical apparent radiative properties of the infinite V-groove with specular reflection

Mulford

Collins

Farnsworth

et al. 2018

International Journal of Heat and Mass Transfer

View full text Add to dashboard Cite

show abstract

“…Preliminary research on V-grooved InP solar cells has been conducted at NASA Lewis [14]. The cell geometry is shown schematically in figure 2.…”

Section: V-grooved Inp Solar Cellsmentioning

confidence: 99%

“…After etching, the slanted surface is in the (Ill) direction. The emitter of the n+p InP cell was formed by closed ampoule diffusion of sulphur using In2S3 as a diffusion source [14].…”

Section: V-grooved Inp Solar Cellsmentioning

confidence: 99%