Experimental Study of Design Parameters in Silicon Micropillar Array Solar Cells Produced by Soft Lithography and Metal-Assisted Chemical Etching

Shin, Jae Cheol; Chanda, Debashis; Chern, Winston; Yu, Ki Jun; Rogers, John A.; Li, Xiuling

doi:10.1109/jphotov.2011.2180894

Cited by 52 publications

(47 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[9][10][11][12] Shin et al have reported on radially doped silicon micropillars of 10 µm in length and pointed out the importance of a proper surface passivation. [11] Yet, even with a passivation layer, reported efficiencies of silicon nano-and micropillar PV cells rarely exceed 5%. [11] Previously we showed the feasibility of radially doped silicon micropillars of 40 µm in length, with efficiencies well above 5%.…”

Section: Doi: 101002/aenm201601497mentioning

confidence: 99%

Photo‐Electrical Characterization of Silicon Micropillar Arrays with Radial p/n Junctions Containing Passivation and Anti‐Reflection Coatings

Vijselaar

Elbersen

Tiggelaar

et al. 2016

Advanced Energy Materials

View full text Add to dashboard Cite

In order to assess the contributions of anti‐reflective and passivation effects in microstructured silicon‐based solar light harvesting devices, thin layers of aluminum oxide (Al2O3), silicon dioxide (SiO2), silicon‐rich silicon nitride (SiNx), and indium tin oxide (ITO), with a thickness ranging from 45 to 155 nm, are deposited onto regularly packed arrays of silicon micropillars with radial p/n junctions. Atomic layer deposition of Al2O3 yields the best conformal coating over the micropillars. The fact that layers made by low‐pressure chemical vapor deposition (SiO2 and SiNx) are not conformally deposited on the sidewalls of the Si micropillars do not influence the photoelectrical efficiency. For ITO, a change in composition along the micropillar height is measured, which leads to poor performance. For Al2O3, deconvolution of the contributions of passivation and anti‐reflection to the overall efficiency gain exhibits the importance of passivation in micro/nano‐structured Si devices. Al2O3‐coated samples perform the best, for both n/p and p/n configured pillars, yielding (relative) increases of 116% and 37% in efficiency of coated versus non‐coated samples for p‐type and n‐type base micropillar arrays, respectively.

show abstract

Section: Doi: 101002/aenm201601497mentioning

confidence: 99%

Photo‐Electrical Characterization of Silicon Micropillar Arrays with Radial p/n Junctions Containing Passivation and Anti‐Reflection Coatings

Vijselaar

Elbersen

Tiggelaar

et al. 2016

Advanced Energy Materials

View full text Add to dashboard Cite

show abstract

“…The lowering of the Reflectance in texturing patterns such as pyramids (Baker-Finch and McIntosh, 2011;Mavrokefalos et al, 2012), nanowires (Garnett and Yang, 2010;Madaria et al, 2011) or micro pillars arrays (Yoon et al, 2012;Shin et al, 2012;Logeeswaran et al, 2010;Kim et al, 2013;Sinton et al, 1996) is caused by certain factors. One factor is the refractive index averaging between the air and the cell material.…”

Section: Introductionmentioning

confidence: 99%

“…One factor is the refractive index averaging between the air and the cell material. A second factor is the light trapping by multiple reflections of the incoming light (Mavrokefalos et al, 2012;Garnett and Yang, 2010;Madaria et al, 2012;Shin et al, 2012;Logeeswaran et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Hut-like pillar array Si solar cells

Cabrera-Espana

Agrawal

2016

Solar Energy

View full text Add to dashboard Cite

This is the accepted version of the paper.This version of the publication may differ from the final published version. Permanent AbstractA good texturing pattern for solar cells needs to combine low Reflectance over a large wavelength range and low surface recombination to maximise the output. Nanowire and pyramid patterns offer low Reflectance in the longer and shorter wavelength regions respectively. This paper introduces an exciting new "hut" like texturing pattern with excellent performance, improving that of nanowires and pyramids; over the long and short wavelength ranges respectively. Furthermore, we analyse the effect of different structural parameters such as height, diameter, Surface Coverage (SC) and ϑ, on the solar cell performance.2015 Elsevier Ltd. All rights reserved

show abstract

“…WW/NW arrays with radial p/n junctions have a high aspect ratio which leads to a strongly increased surface area with concomitantly enhanced surface recombination. 60,61,[92][93][94][95] To overcome this problem, the surface can be passivated by an insulating layer. By passivating the Si surface, a reduction in the amount of surface trap states is observed 96,97 (i.e.…”

Section: P/n Junctions In Highly Structured Si Pv Devicesmentioning

confidence: 99%

“…Shin et al have reported on radially doped silicon micropillars of 10 µm in length and pointed out the importance of a proper surface passivation. 94 Lee et [99][100][101] Photocathodes with a buried p/n junction out-perform the p-Si/electrolyte junction, as is seen in Table 2.1 and Table 2.2. However, The obtained photovoltages are substantially lower as reported above (i.e.…”

Section: P/n Junctions In Highly Structured Si Pv Devicesmentioning

confidence: 99%

Bright ways to utilize the sun

Vijselaar

View full text Add to dashboard Cite

Experimental Study of Design Parameters in Silicon Micropillar Array Solar Cells Produced by Soft Lithography and Metal-Assisted Chemical Etching

Cited by 52 publications

References 29 publications

Photo‐Electrical Characterization of Silicon Micropillar Arrays with Radial p/n Junctions Containing Passivation and Anti‐Reflection Coatings

Photo‐Electrical Characterization of Silicon Micropillar Arrays with Radial p/n Junctions Containing Passivation and Anti‐Reflection Coatings

Hut-like pillar array Si solar cells

Bright ways to utilize the sun

Contact Info

Product

Resources

About