Effect of TiO 2 nanopatterns on the performance of hydrogenated amorphous silicon thin-film solar cells

Joon Ho Oh; Ji Hwan Yang; Koeng Su Lim; Kang Soo Han; Yang Doo Kim; Heon Lee; Jun Hyuk Song; Kyoung Kook Kim; Tae Yeon Seong

doi:10.1016/j.tsf.2012.05.083

Effect of TiO ₂ nanopatterns on the performance of hydrogenated amorphous silicon thin-film solar cells

Joon Ho Oh, Ji Hwan Yang, Koeng Su Lim, Kang Soo Han, Yang Doo Kim, Heon Lee, Jun Hyuk Song, Kyoung Kook Kim, Tae Yeon Seong

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

We investigate how TiO ₂ nanopatterns formed onto ZnO:Al (AZO) films affect the performance of hydrogenated amorphous silicon (a-Si:H) solar cells. Scanning electron microscopy results show that the dome-shaped TiO ₂ nanopatterns (300 nm in diameter) having a period of 500 nm are formed onto AZO films and vary from 60 to 180 nm in height. Haze factor increases with an increase in the height of the nanopatterns in the wavelength region below 530 nm. Short circuit current density also increases with an increase in the height of the nanopatterns. As the nanopatterns increases in height, the fill factor of the cells slightly increases, reaches maximum (0.64) at 100 nm, and then decreases. Measurements show that a-Si:H solar cells fabricated with 100 nm-high TiO ₂ nanopatterns exhibit the highest conversion efficiency (6.34%) among the solar cells with the nanopatterns and flat AZO sample.

Original language	English
Pages (from-to)	6287-6290
Number of pages	4
Journal	Thin Solid Films
Volume	520
Issue number	19
DOIs	https://doi.org/10.1016/j.tsf.2012.05.083
Publication status	Published - 2012 Jul 31

Bibliographical note

Funding Information:
This work was supported by the World Class University program through the National Research Foundation of Korea funded by the MEST ( R33-2008-000-10025-0 ).

Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.

Keywords

Amorphous silicon solar cells
Anti-reflection
Light scattering
Nanopatterns
Titanium dioxide
Zinc oxide

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.tsf.2012.05.083

Cite this

@article{f36a27b580274e08ab9373863dc311a6,

title = "Effect of TiO 2 nanopatterns on the performance of hydrogenated amorphous silicon thin-film solar cells",

abstract = "We investigate how TiO 2 nanopatterns formed onto ZnO:Al (AZO) films affect the performance of hydrogenated amorphous silicon (a-Si:H) solar cells. Scanning electron microscopy results show that the dome-shaped TiO 2 nanopatterns (300 nm in diameter) having a period of 500 nm are formed onto AZO films and vary from 60 to 180 nm in height. Haze factor increases with an increase in the height of the nanopatterns in the wavelength region below 530 nm. Short circuit current density also increases with an increase in the height of the nanopatterns. As the nanopatterns increases in height, the fill factor of the cells slightly increases, reaches maximum (0.64) at 100 nm, and then decreases. Measurements show that a-Si:H solar cells fabricated with 100 nm-high TiO 2 nanopatterns exhibit the highest conversion efficiency (6.34%) among the solar cells with the nanopatterns and flat AZO sample.",

keywords = "Amorphous silicon solar cells, Anti-reflection, Light scattering, Nanopatterns, Titanium dioxide, Zinc oxide",

author = "Oh, {Joon Ho} and Yang, {Ji Hwan} and Lim, {Koeng Su} and Han, {Kang Soo} and Kim, {Yang Doo} and Heon Lee and Song, {Jun Hyuk} and Kim, {Kyoung Kook} and Seong, {Tae Yeon}",

note = "Funding Information: This work was supported by the World Class University program through the National Research Foundation of Korea funded by the MEST ( R33-2008-000-10025-0 ). Copyright: Copyright 2012 Elsevier B.V., All rights reserved.",

year = "2012",

month = jul,

day = "31",

doi = "10.1016/j.tsf.2012.05.083",

language = "English",

volume = "520",

pages = "6287--6290",

journal = "Thin Solid Films",

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T1 - Effect of TiO 2 nanopatterns on the performance of hydrogenated amorphous silicon thin-film solar cells

AU - Oh, Joon Ho

AU - Yang, Ji Hwan

AU - Lim, Koeng Su

AU - Han, Kang Soo

AU - Kim, Yang Doo

AU - Lee, Heon

AU - Song, Jun Hyuk

AU - Kim, Kyoung Kook

AU - Seong, Tae Yeon

N1 - Funding Information: This work was supported by the World Class University program through the National Research Foundation of Korea funded by the MEST ( R33-2008-000-10025-0 ). Copyright: Copyright 2012 Elsevier B.V., All rights reserved.

PY - 2012/7/31

Y1 - 2012/7/31

N2 - We investigate how TiO 2 nanopatterns formed onto ZnO:Al (AZO) films affect the performance of hydrogenated amorphous silicon (a-Si:H) solar cells. Scanning electron microscopy results show that the dome-shaped TiO 2 nanopatterns (300 nm in diameter) having a period of 500 nm are formed onto AZO films and vary from 60 to 180 nm in height. Haze factor increases with an increase in the height of the nanopatterns in the wavelength region below 530 nm. Short circuit current density also increases with an increase in the height of the nanopatterns. As the nanopatterns increases in height, the fill factor of the cells slightly increases, reaches maximum (0.64) at 100 nm, and then decreases. Measurements show that a-Si:H solar cells fabricated with 100 nm-high TiO 2 nanopatterns exhibit the highest conversion efficiency (6.34%) among the solar cells with the nanopatterns and flat AZO sample.

AB - We investigate how TiO 2 nanopatterns formed onto ZnO:Al (AZO) films affect the performance of hydrogenated amorphous silicon (a-Si:H) solar cells. Scanning electron microscopy results show that the dome-shaped TiO 2 nanopatterns (300 nm in diameter) having a period of 500 nm are formed onto AZO films and vary from 60 to 180 nm in height. Haze factor increases with an increase in the height of the nanopatterns in the wavelength region below 530 nm. Short circuit current density also increases with an increase in the height of the nanopatterns. As the nanopatterns increases in height, the fill factor of the cells slightly increases, reaches maximum (0.64) at 100 nm, and then decreases. Measurements show that a-Si:H solar cells fabricated with 100 nm-high TiO 2 nanopatterns exhibit the highest conversion efficiency (6.34%) among the solar cells with the nanopatterns and flat AZO sample.

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KW - Anti-reflection

KW - Light scattering

KW - Nanopatterns

KW - Titanium dioxide

KW - Zinc oxide

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