Efficiency enhancement in Cu2ZnSnS4 solar cells with silica nanoparticles embedded in absorber layer

Balakrishna Ananthoju; Sundara Murthy Mopurisetty; Himanshu Tyagi; D. Bahadur; N. V. Medhekar; Swaroop Ganguly; M. Aslam

doi:10.1109/PVSC.2015.7355798

Efficiency enhancement in Cu2ZnSnS4 solar cells with silica nanoparticles embedded in absorber layer

Balakrishna Ananthoju, Sundara Murthy Mopurisetty, Himanshu Tyagi, D. Bahadur, N. V. Medhekar, Swaroop Ganguly, M. Aslam

Materials Science & Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

Abstract

Light trapping is essential to lower transmission losses in thin-film solar cells, particularly for wavelengths where the absorption is inefficient. We have embedded silica nanoparticles into a CZTS absorber layer resulting in localized as well as scattering field enhancement. UV-Vis absorption measurements show position (depth in the absorber layer) dependent improvement in the optical absorption with incorporation of silica nanoparticles; this has been explained using finite-difference-time-domain (FDTD) calculations of Mie scattering. The optical enhancement in turn leads to efficiency improvement as seen from electrical measurements; this has a slightly different position dependence that can also be understood theoretically. We observe maximal efficiency improvement, of about 21% compared to devices without nanoparticles (reference cell efficiency ∼ 4.13% and for particles at middle ∼ 5%), when nanoparticles are placed at the middle of the absorber layer.

Original language	English
Title of host publication	2015 IEEE 42nd Photovoltaic Specialists Conference, PVSC 2015
Subtitle of host publication	New Orleans, Louisiana, USA; 14-19 June 2015
Place of Publication	Piscataway NJ USA
Publisher	IEEE, Institute of Electrical and Electronics Engineers
Pages	907-911
Number of pages	5
ISBN (Electronic)	9781479979448
DOIs	https://doi.org/10.1109/PVSC.2015.7355798
Publication status	Published - 14 Dec 2015
Event	IEEE Photovoltaic Specialists Conference 2015 - New Orleans, United States of America Duration: 14 Jun 2015 → 19 Jun 2015 Conference number: 42nd https://ieeexplore.ieee.org/xpl/conhome/7337615/proceeding (Proceedings)

Conference

Conference	IEEE Photovoltaic Specialists Conference 2015
Abbreviated title	PVSC 2015
Country/Territory	United States of America
City	New Orleans
Period	14/06/15 → 19/06/15
Internet address	https://ieeexplore.ieee.org/xpl/conhome/7337615/proceeding (Proceedings)

Keywords

CZTS solar cell
Light trapping
Mie scattering
Power conversion efficiency (PCE)
Silica nanoparticles
UV-Vis absorption

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Ananthoju, B., Mopurisetty, S. M., Tyagi, H., Bahadur, D., Medhekar, N. V., Ganguly, S., & Aslam, M. (2015). Efficiency enhancement in Cu2ZnSnS4 solar cells with silica nanoparticles embedded in absorber layer. In 2015 IEEE 42nd Photovoltaic Specialists Conference, PVSC 2015: New Orleans, Louisiana, USA; 14-19 June 2015 (pp. 907-911). Article 7355798 IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/PVSC.2015.7355798

Ananthoju, Balakrishna ; Mopurisetty, Sundara Murthy ; Tyagi, Himanshu et al. / Efficiency enhancement in Cu2ZnSnS4 solar cells with silica nanoparticles embedded in absorber layer. 2015 IEEE 42nd Photovoltaic Specialists Conference, PVSC 2015: New Orleans, Louisiana, USA; 14-19 June 2015. Piscataway NJ USA : IEEE, Institute of Electrical and Electronics Engineers, 2015. pp. 907-911

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title = "Efficiency enhancement in Cu2ZnSnS4 solar cells with silica nanoparticles embedded in absorber layer",

abstract = "Light trapping is essential to lower transmission losses in thin-film solar cells, particularly for wavelengths where the absorption is inefficient. We have embedded silica nanoparticles into a CZTS absorber layer resulting in localized as well as scattering field enhancement. UV-Vis absorption measurements show position (depth in the absorber layer) dependent improvement in the optical absorption with incorporation of silica nanoparticles; this has been explained using finite-difference-time-domain (FDTD) calculations of Mie scattering. The optical enhancement in turn leads to efficiency improvement as seen from electrical measurements; this has a slightly different position dependence that can also be understood theoretically. We observe maximal efficiency improvement, of about 21% compared to devices without nanoparticles (reference cell efficiency ∼ 4.13% and for particles at middle ∼ 5%), when nanoparticles are placed at the middle of the absorber layer.",

keywords = "CZTS solar cell, Light trapping, Mie scattering, Power conversion efficiency (PCE), Silica nanoparticles, UV-Vis absorption",

author = "Balakrishna Ananthoju and Mopurisetty, {Sundara Murthy} and Himanshu Tyagi and D. Bahadur and Medhekar, {N. V.} and Swaroop Ganguly and M. Aslam",

year = "2015",

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doi = "10.1109/PVSC.2015.7355798",

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booktitle = "2015 IEEE 42nd Photovoltaic Specialists Conference, PVSC 2015",

publisher = "IEEE, Institute of Electrical and Electronics Engineers",

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Ananthoju, B, Mopurisetty, SM, Tyagi, H, Bahadur, D, Medhekar, NV, Ganguly, S & Aslam, M 2015, Efficiency enhancement in Cu2ZnSnS4 solar cells with silica nanoparticles embedded in absorber layer. in 2015 IEEE 42nd Photovoltaic Specialists Conference, PVSC 2015: New Orleans, Louisiana, USA; 14-19 June 2015., 7355798, IEEE, Institute of Electrical and Electronics Engineers, Piscataway NJ USA, pp. 907-911, IEEE Photovoltaic Specialists Conference 2015, New Orleans, Louisiana, United States of America, 14/06/15. https://doi.org/10.1109/PVSC.2015.7355798

Efficiency enhancement in Cu2ZnSnS4 solar cells with silica nanoparticles embedded in absorber layer. / Ananthoju, Balakrishna; Mopurisetty, Sundara Murthy; Tyagi, Himanshu et al.
2015 IEEE 42nd Photovoltaic Specialists Conference, PVSC 2015: New Orleans, Louisiana, USA; 14-19 June 2015. Piscataway NJ USA: IEEE, Institute of Electrical and Electronics Engineers, 2015. p. 907-911 7355798.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

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AU - Ananthoju, Balakrishna

AU - Mopurisetty, Sundara Murthy

AU - Tyagi, Himanshu

AU - Bahadur, D.

AU - Medhekar, N. V.

AU - Ganguly, Swaroop

AU - Aslam, M.

N1 - Conference code: 42nd

PY - 2015/12/14

Y1 - 2015/12/14

N2 - Light trapping is essential to lower transmission losses in thin-film solar cells, particularly for wavelengths where the absorption is inefficient. We have embedded silica nanoparticles into a CZTS absorber layer resulting in localized as well as scattering field enhancement. UV-Vis absorption measurements show position (depth in the absorber layer) dependent improvement in the optical absorption with incorporation of silica nanoparticles; this has been explained using finite-difference-time-domain (FDTD) calculations of Mie scattering. The optical enhancement in turn leads to efficiency improvement as seen from electrical measurements; this has a slightly different position dependence that can also be understood theoretically. We observe maximal efficiency improvement, of about 21% compared to devices without nanoparticles (reference cell efficiency ∼ 4.13% and for particles at middle ∼ 5%), when nanoparticles are placed at the middle of the absorber layer.

AB - Light trapping is essential to lower transmission losses in thin-film solar cells, particularly for wavelengths where the absorption is inefficient. We have embedded silica nanoparticles into a CZTS absorber layer resulting in localized as well as scattering field enhancement. UV-Vis absorption measurements show position (depth in the absorber layer) dependent improvement in the optical absorption with incorporation of silica nanoparticles; this has been explained using finite-difference-time-domain (FDTD) calculations of Mie scattering. The optical enhancement in turn leads to efficiency improvement as seen from electrical measurements; this has a slightly different position dependence that can also be understood theoretically. We observe maximal efficiency improvement, of about 21% compared to devices without nanoparticles (reference cell efficiency ∼ 4.13% and for particles at middle ∼ 5%), when nanoparticles are placed at the middle of the absorber layer.

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KW - Light trapping

KW - Mie scattering

KW - Power conversion efficiency (PCE)

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BT - 2015 IEEE 42nd Photovoltaic Specialists Conference, PVSC 2015

PB - IEEE, Institute of Electrical and Electronics Engineers

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ER -

Ananthoju B, Mopurisetty SM, Tyagi H, Bahadur D, Medhekar NV, Ganguly S et al. Efficiency enhancement in Cu2ZnSnS4 solar cells with silica nanoparticles embedded in absorber layer. In 2015 IEEE 42nd Photovoltaic Specialists Conference, PVSC 2015: New Orleans, Louisiana, USA; 14-19 June 2015. Piscataway NJ USA: IEEE, Institute of Electrical and Electronics Engineers. 2015. p. 907-911. 7355798 doi: 10.1109/PVSC.2015.7355798

Efficiency enhancement in Cu2ZnSnS4 solar cells with silica nanoparticles embedded in absorber layer

Abstract

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Keywords

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