Black silicon photovoltaics

M Otto, M Algasinger, H Branz… - Advanced optical …, 2015‏ - Wiley Online Library
This article presents an overview of the fabrication methods of black silicon, their resulting
morphologies, and a quantitative comparison of their optoelectronic properties. To perform …

Restructured porous silicon for solar photovoltaic: a review

MK Sahoo, P Kale - Microporous and Mesoporous Materials, 2019‏ - Elsevier
Abstract Bulk Silicon (Si) possesses an indirect bandgap and low surface area to volume
ratio. Porous silicon (PSi), a derived material of Si, overcomes drawbacks of Si, and …

A new bottom-up methodology to produce silicon layers with a closed porosity nanostructure and reduced refractive index

V Godinho, J Caballero-Hernández, D Jamon… - …, 2013‏ - iopscience.iop.org
A new approach is presented to produce amorphous porous silicon coatings (a-pSi) with
closed porosity by magnetron sputtering of a silicon target. It is shown how the use of He as …

Kerfless exfoliated thin crystalline Si wafers with Al metallization layers for solar cells

R Niepelt, J Hensen, V Steckenreiter… - Journal of Materials …, 2015‏ - cambridge.org
We report on a kerfless exfoliation approach to further reduce the costs of crystalline silicon
photovoltaics making use of evaporated Al as a double functional layer. The Al serves as the …

Thin macroporous silicon heterojunction solar cells

M Ernst, R Brendel, R Ferré… - physica status solidi …, 2012‏ - Wiley Online Library
We demonstrate the processing of a heterojunction solar cell from a purely macroporous
silicon (MacPSi) absorber that is generated and separated from a monocrystalline n‐type Cz …

Nanowire decorated, ultra-thin, single crystalline silicon for photovoltaic devices

P Aurang, R Turan, HE Unalan - Nanotechnology, 2017‏ - iopscience.iop.org
Reducing silicon (Si) wafer thickness in the photovoltaic industry has always been
demanded for lowering the overall cost. Further benefits such as short collection lengths and …

High-quality exfoliated crystalline silicon foils for solar cell applications

R Niepelt, J Hensen, A Knorr, V Steckenreiter… - Energy Procedia, 2014‏ - Elsevier
Kerfless wafering techniques offer a significant cost saving potential via the reduction of
silicon consumption. In this paper, we examine thin single crystalline Si foils that were …

Modeling effective carrier lifetimes of passivated macroporous silicon layers

M Ernst, R Brendel - Solar Energy Materials and Solar Cells, 2011‏ - Elsevier
We derive and apply a model that determines the effective minority carrier lifetime of
macroporous crystalline silicon samples as a function of bulk lifetime, surface passivation …

Macroporous silicon solar cells with an epitaxial emitter

M Ernst, R Brendel - IEEE Journal of Photovoltaics, 2013‏ - ieeexplore.ieee.org
In this paper, we separate a macroporous silicon absorber from a monocrystalline n-type
silicon wafer by means of electrochemical etching. The porosity is (31±3)%. The epitaxial …

Lambertian light trap** in thin crystalline macroporous Si layers

M Ernst, R Brendel - physica status solidi (RRL)–Rapid …, 2014‏ - Wiley Online Library
Lambertian light trap** is a benchmark for efficient light trap**. In this Letter we
experimentally quantify the degree of Lambertian light trap** in a macroporous silicon …