Comparison of influence of gold contamination on the performances of planar and three dimensional c-Si solar cells

Date

2019-11-01

Author

Baytemir, Gulsen
Es, Firat
Turan, Raşit

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

221
views

0
downloads

Radial junction solar cell is proposed as an alternative device geometry to planar junction solar cell due to its superior electro-optical performance. In this geometry, densely-packed micropillars enable the collection of minority carriers in the radial direction. Thus, the distance that carriers should travel to reach the p-n junction is shortened, allowing the use of low quality materials with poor carrier lifetime. In this study, we have experimentally studied the advantage of radial junction approach in low quality Si. For this purpose, we fabricated planar and radial junction solar cells using Si wafers with Au impurities. Average efficiency values of 15.74% and 15.66% were obtained for planar and radial cells in uncontaminated samples, respectively, indicating that close efficiency values were obtained when using high quality materials. However, in the case of contamination, the efficiency of the cells with radial junction degraded less compared to the planar junction with the values of 14.71% and 12.72%, respectively. This is consistent with the expectation that radial junction cells are less sensitive to the quality of the material used. Moreover, these results, together with future structural optimization, lay a solid foundation for lowering fabrication costs without reducing the performance of the solar cell.

Subject Keywords

Radial junction, Solar cell, Metallic contamination, Au impurities, Low lifetime

URI

https://hdl.handle.net/11511/40881

Journal

RENEWABLE ENERGY

DOI

https://doi.org/10.1016/j.renene.2019.04.081

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Radial junction solar cells prepared on single crystalline silicon wafers by metal-assisted etching BAYTEMİR, Gulsen; ES, FIRAT; ALAGOZ, Arif Sinan; Turan, Raşit (2017-05-01) Radial junction solar cells have been proposed as an alternative device geometry to conventional planar solar cells with its remarkable electrical and optical performance. In this geometry, densely packed nano/micropillars allow minority carrier collection in the radial direction and shorten carrier diffusion length to p-n junction. Besides, reduced reflection from surface and increased light trapping in nano/micropillars enhance solar cell efficiency. In this study, photolithography and metal-assisted etch...
Radial junction solar cells prepared on crystalline si by metal assisted electroless etching Baytemir, Gülsen; Es, Fırat; Turan, Raşit (null; 2016-06-05) Radial junction solar cell has been proposed as an alternative device geometry to conventional planar solar cells with its remarkable electrical and optical performance. In this geometry, micro/nano pillars on the surface allow minority carrier collection in the radial direction and shorten the carrier diffusion length. Moreover, increased light trapping in the pillars and reduced reflection from surface enhance the solar cell efficiency. In their letter (article no. 1600444) Baytemir et al. have investigat...
Guideline for Optical Optimization of Planar Perovskite Solar Cells Koc, Mehmet; Soltanpoor, Wiria; Bektas, Gence; Bolink, Henk J.; Yerci, Selçuk (2019-12-01) Organometallic halide perovskite solar cells have emerged as a versatile photovoltaic technology with soaring efficiencies. Planar configuration, in particular, has been a structure of choice thanks to its lower temperature processing, compatibility with tandem solar cells, and potential in commercialization. Despite all the breakthroughs in the field, the optical mechanisms leading to highly efficient perovskite solar cells lack profound insight. In this paper, a comprehensive guideline is introduced invol...
Application of Si Nanowires Fabricated by Metal-Assisted Etching to Crystalline Si Solar Cells KULAKCI, Mustafa; ES, FIRAT; ÖZDEMİR, Baris; Ünalan, Hüsnü Emrah; Turan, Raşit (2013-01-01) Reflection and transmission through a solar cell can be significantly reduced using light-trapping structures. This approach can be applied to both crystalline and thin-film solar cells to improve the light absorption and conversion efficiency of the cell. In this study, vertically aligned Si nanowires were fabricated over a large area via a metal-assisted etching technique. Following a detailed parametric study, nanowires were applied to industrial-size (156 mm x 156 mm) Si solar cells. The reflectivity fr...
Interface passivation of perovskite solar cells with novel cations Çel, Gülsevim Bensu; Günbaş, Emrullah Görkem; Yerci, Selçuk; Department of Micro and Nanotechnology (2022-8) Interface engineering and surface defect passivation play an important role in the development of state-of-the-art perovskite solar cells. Forming an additional two-dimensional (2D) layer on top of the primary perovskite absorber after treatment with organic spacers not only passivates defects and improves the device performance, but also enhances stability. In this study, two novel cations, that are 2,6-methoxy-phenylethyl ammonium iodide (2,6-MeO-PEAI) and 3,5-methoxy-phenylethyl ammonium iodide (3,5-MeO-...

Citation Formats

G. Baytemir, F. Es, and R. Turan, “Comparison of influence of gold contamination on the performances of planar and three dimensional c-Si solar cells,” RENEWABLE ENERGY, pp. 393–399, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40881.