An investigation of three-dimensional texturing in silicon solar cells for enhanced optical absorption

Fairborz Jahanshah, Rajiv Prinja, John Anderson, Ron Manginell, Nowshad Amin, Kamaruzzaman Sopian, Saleem H. Zaidi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Application of randomly created sub-wavelength structures using either wet- or dry chemical mechanisms in Si must serve two purposes, i.e., reduces reflection and enhance near IR absorption. This absorption enhancement can only occur through diffractive scattering from random surfaces with feature dimensions of ≫ λ/n, where n is Si refractive index. For surface features with sizes ≪ λ/n, no internal diffraction is possible with textured surface behaving like a gradient index film. Absorption enhancement of ∼ 4n2 between two parallel sheets has been predicted using statistical analysis. By creating three-dimensional surfaces with subwavelength textures on front and sidewalls, it may be possible to enhance absorption beyond the 4n2 statistical limit. We have investigated SILVACO software to carry out a detailed simulation of three-dimensional structured surfaces integrated into conventional solar cell configuration of front and back contacts in p-type substrate using POCl3 diffusion with Al BSF. Simulations have exhibited short-circuit enhancements of ∼ 4 mA/cm2 for two-dimensional and ∼ 8 mA/cm2 for three-dimensional textured surfaces. Solar cells fabricated using p-type substrates with have exhibited short-circuit gain of ∼ 7.5 mA/cm2 for textured surface over a planar surface. Ever superior performance will be achievable following SiN anti-reflection and surface passivation combined with emitter and contact optimization.

Original languageEnglish
Title of host publicationConference Record of the IEEE Photovoltaic Specialists Conference
DOIs
Publication statusPublished - 2008
Event33rd IEEE Photovoltaic Specialists Conference, PVSC 2008 - San Diego, CA
Duration: 11 May 200816 May 2008

Other

Other33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
CitySan Diego, CA
Period11/5/0816/5/08

Fingerprint

Texturing
Silicon solar cells
Light absorption
Short circuit currents
Solar cells
Substrates
Passivation
Refractive index
Statistical methods
Textures
Diffraction
Scattering
Wavelength

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

Cite this

Jahanshah, F., Prinja, R., Anderson, J., Manginell, R., Amin, N., Sopian, K., & Zaidi, S. H. (2008). An investigation of three-dimensional texturing in silicon solar cells for enhanced optical absorption. In Conference Record of the IEEE Photovoltaic Specialists Conference [4922676] https://doi.org/10.1109/PVSC.2008.4922676

An investigation of three-dimensional texturing in silicon solar cells for enhanced optical absorption. / Jahanshah, Fairborz; Prinja, Rajiv; Anderson, John; Manginell, Ron; Amin, Nowshad; Sopian, Kamaruzzaman; Zaidi, Saleem H.

Conference Record of the IEEE Photovoltaic Specialists Conference. 2008. 4922676.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jahanshah, F, Prinja, R, Anderson, J, Manginell, R, Amin, N, Sopian, K & Zaidi, SH 2008, An investigation of three-dimensional texturing in silicon solar cells for enhanced optical absorption. in Conference Record of the IEEE Photovoltaic Specialists Conference., 4922676, 33rd IEEE Photovoltaic Specialists Conference, PVSC 2008, San Diego, CA, 11/5/08. https://doi.org/10.1109/PVSC.2008.4922676
Jahanshah F, Prinja R, Anderson J, Manginell R, Amin N, Sopian K et al. An investigation of three-dimensional texturing in silicon solar cells for enhanced optical absorption. In Conference Record of the IEEE Photovoltaic Specialists Conference. 2008. 4922676 https://doi.org/10.1109/PVSC.2008.4922676
Jahanshah, Fairborz ; Prinja, Rajiv ; Anderson, John ; Manginell, Ron ; Amin, Nowshad ; Sopian, Kamaruzzaman ; Zaidi, Saleem H. / An investigation of three-dimensional texturing in silicon solar cells for enhanced optical absorption. Conference Record of the IEEE Photovoltaic Specialists Conference. 2008.
@inproceedings{4311d21f1cf34e01a7ddbb6f09822f2d,
title = "An investigation of three-dimensional texturing in silicon solar cells for enhanced optical absorption",
abstract = "Application of randomly created sub-wavelength structures using either wet- or dry chemical mechanisms in Si must serve two purposes, i.e., reduces reflection and enhance near IR absorption. This absorption enhancement can only occur through diffractive scattering from random surfaces with feature dimensions of ≫ λ/n, where n is Si refractive index. For surface features with sizes ≪ λ/n, no internal diffraction is possible with textured surface behaving like a gradient index film. Absorption enhancement of ∼ 4n2 between two parallel sheets has been predicted using statistical analysis. By creating three-dimensional surfaces with subwavelength textures on front and sidewalls, it may be possible to enhance absorption beyond the 4n2 statistical limit. We have investigated SILVACO software to carry out a detailed simulation of three-dimensional structured surfaces integrated into conventional solar cell configuration of front and back contacts in p-type substrate using POCl3 diffusion with Al BSF. Simulations have exhibited short-circuit enhancements of ∼ 4 mA/cm2 for two-dimensional and ∼ 8 mA/cm2 for three-dimensional textured surfaces. Solar cells fabricated using p-type substrates with have exhibited short-circuit gain of ∼ 7.5 mA/cm2 for textured surface over a planar surface. Ever superior performance will be achievable following SiN anti-reflection and surface passivation combined with emitter and contact optimization.",
author = "Fairborz Jahanshah and Rajiv Prinja and John Anderson and Ron Manginell and Nowshad Amin and Kamaruzzaman Sopian and Zaidi, {Saleem H.}",
year = "2008",
doi = "10.1109/PVSC.2008.4922676",
language = "English",
isbn = "9781424416417",
booktitle = "Conference Record of the IEEE Photovoltaic Specialists Conference",

}

TY - GEN

T1 - An investigation of three-dimensional texturing in silicon solar cells for enhanced optical absorption

AU - Jahanshah, Fairborz

AU - Prinja, Rajiv

AU - Anderson, John

AU - Manginell, Ron

AU - Amin, Nowshad

AU - Sopian, Kamaruzzaman

AU - Zaidi, Saleem H.

PY - 2008

Y1 - 2008

N2 - Application of randomly created sub-wavelength structures using either wet- or dry chemical mechanisms in Si must serve two purposes, i.e., reduces reflection and enhance near IR absorption. This absorption enhancement can only occur through diffractive scattering from random surfaces with feature dimensions of ≫ λ/n, where n is Si refractive index. For surface features with sizes ≪ λ/n, no internal diffraction is possible with textured surface behaving like a gradient index film. Absorption enhancement of ∼ 4n2 between two parallel sheets has been predicted using statistical analysis. By creating three-dimensional surfaces with subwavelength textures on front and sidewalls, it may be possible to enhance absorption beyond the 4n2 statistical limit. We have investigated SILVACO software to carry out a detailed simulation of three-dimensional structured surfaces integrated into conventional solar cell configuration of front and back contacts in p-type substrate using POCl3 diffusion with Al BSF. Simulations have exhibited short-circuit enhancements of ∼ 4 mA/cm2 for two-dimensional and ∼ 8 mA/cm2 for three-dimensional textured surfaces. Solar cells fabricated using p-type substrates with have exhibited short-circuit gain of ∼ 7.5 mA/cm2 for textured surface over a planar surface. Ever superior performance will be achievable following SiN anti-reflection and surface passivation combined with emitter and contact optimization.

AB - Application of randomly created sub-wavelength structures using either wet- or dry chemical mechanisms in Si must serve two purposes, i.e., reduces reflection and enhance near IR absorption. This absorption enhancement can only occur through diffractive scattering from random surfaces with feature dimensions of ≫ λ/n, where n is Si refractive index. For surface features with sizes ≪ λ/n, no internal diffraction is possible with textured surface behaving like a gradient index film. Absorption enhancement of ∼ 4n2 between two parallel sheets has been predicted using statistical analysis. By creating three-dimensional surfaces with subwavelength textures on front and sidewalls, it may be possible to enhance absorption beyond the 4n2 statistical limit. We have investigated SILVACO software to carry out a detailed simulation of three-dimensional structured surfaces integrated into conventional solar cell configuration of front and back contacts in p-type substrate using POCl3 diffusion with Al BSF. Simulations have exhibited short-circuit enhancements of ∼ 4 mA/cm2 for two-dimensional and ∼ 8 mA/cm2 for three-dimensional textured surfaces. Solar cells fabricated using p-type substrates with have exhibited short-circuit gain of ∼ 7.5 mA/cm2 for textured surface over a planar surface. Ever superior performance will be achievable following SiN anti-reflection and surface passivation combined with emitter and contact optimization.

UR - http://www.scopus.com/inward/record.url?scp=84879736209&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84879736209&partnerID=8YFLogxK

U2 - 10.1109/PVSC.2008.4922676

DO - 10.1109/PVSC.2008.4922676

M3 - Conference contribution

SN - 9781424416417

BT - Conference Record of the IEEE Photovoltaic Specialists Conference

ER -