Functional multilayered transparent conducting oxide thin films for photovoltaic devices

Jun Hong Noh; Sangwook Lee; Jin Young Kim; Jung Kun Lee; Hyun Soo Han; Chin Moo Cho; In Sun Cho; Hyun Suk Jung; Kug Sun Hong

doi:10.1021/jp808279j

Functional multilayered transparent conducting oxide thin films for photovoltaic devices

Jun Hong Noh, Sangwook Lee, Jin Young Kim, Jung Kun Lee, Hyun Soo Han, Chin Moo Cho, In Sun Cho, Hyun Suk Jung, Kug Sun Hong

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

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Abstract

In this study, we present a thermally stable multilayered transparent conducting oxide (TCO) functionalized for dye-sensitized solar cells (DSSCs). Nb-doped TiO ₂ (NTO) layers deposited on conventional Sn-doped In ₂O ₃ (ITO) substrates using pulsed laser deposition (PLD) enhanced the optical-to-electrical conversion efficiency of the DSSCs by as much as 17% compared to that of bare ITO-based DSSCs. The electrical properties and J - V characteristics of the multilayered NTO/ITO films showed that the improved cell performance was due to the facilitated charge injection from TiO ₂ to ITO that resulted from the formation of an ohmic contact with ITO, as well as the conserved high conductivity of ITO after the oxidizing annealing process. Moreover, the NTO/ITO-based DSSC exhibited higher efficiency than a F-doped SnO ₂(FTO)-based one, which demonstrates that optimization of multilayered NTO-based TCOs is a realistic approach for achieving highly efficient photoenergy conversion devices.

Original language	English
Pages (from-to)	1083-1087
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	113
Issue number	3
DOIs	https://doi.org/10.1021/jp808279j
State	Published - 22 Jan 2009

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@article{c53cb2232b6b49bb8dceaa8c1252b981,

title = "Functional multilayered transparent conducting oxide thin films for photovoltaic devices",

abstract = "In this study, we present a thermally stable multilayered transparent conducting oxide (TCO) functionalized for dye-sensitized solar cells (DSSCs). Nb-doped TiO 2 (NTO) layers deposited on conventional Sn-doped In 2O 3 (ITO) substrates using pulsed laser deposition (PLD) enhanced the optical-to-electrical conversion efficiency of the DSSCs by as much as 17% compared to that of bare ITO-based DSSCs. The electrical properties and J - V characteristics of the multilayered NTO/ITO films showed that the improved cell performance was due to the facilitated charge injection from TiO 2 to ITO that resulted from the formation of an ohmic contact with ITO, as well as the conserved high conductivity of ITO after the oxidizing annealing process. Moreover, the NTO/ITO-based DSSC exhibited higher efficiency than a F-doped SnO 2(FTO)-based one, which demonstrates that optimization of multilayered NTO-based TCOs is a realistic approach for achieving highly efficient photoenergy conversion devices.",

author = "Noh, {Jun Hong} and Sangwook Lee and Kim, {Jin Young} and Lee, {Jung Kun} and Han, {Hyun Soo} and Cho, {Chin Moo} and Cho, {In Sun} and Jung, {Hyun Suk} and Hong, {Kug Sun}",

year = "2009",

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day = "22",

doi = "10.1021/jp808279j",

language = "English",

volume = "113",

pages = "1083--1087",

journal = "Journal of Physical Chemistry C",

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T1 - Functional multilayered transparent conducting oxide thin films for photovoltaic devices

AU - Noh, Jun Hong

AU - Lee, Sangwook

AU - Kim, Jin Young

AU - Lee, Jung Kun

AU - Han, Hyun Soo

AU - Cho, Chin Moo

AU - Cho, In Sun

AU - Jung, Hyun Suk

AU - Hong, Kug Sun

PY - 2009/1/22

Y1 - 2009/1/22

N2 - In this study, we present a thermally stable multilayered transparent conducting oxide (TCO) functionalized for dye-sensitized solar cells (DSSCs). Nb-doped TiO 2 (NTO) layers deposited on conventional Sn-doped In 2O 3 (ITO) substrates using pulsed laser deposition (PLD) enhanced the optical-to-electrical conversion efficiency of the DSSCs by as much as 17% compared to that of bare ITO-based DSSCs. The electrical properties and J - V characteristics of the multilayered NTO/ITO films showed that the improved cell performance was due to the facilitated charge injection from TiO 2 to ITO that resulted from the formation of an ohmic contact with ITO, as well as the conserved high conductivity of ITO after the oxidizing annealing process. Moreover, the NTO/ITO-based DSSC exhibited higher efficiency than a F-doped SnO 2(FTO)-based one, which demonstrates that optimization of multilayered NTO-based TCOs is a realistic approach for achieving highly efficient photoenergy conversion devices.

AB - In this study, we present a thermally stable multilayered transparent conducting oxide (TCO) functionalized for dye-sensitized solar cells (DSSCs). Nb-doped TiO 2 (NTO) layers deposited on conventional Sn-doped In 2O 3 (ITO) substrates using pulsed laser deposition (PLD) enhanced the optical-to-electrical conversion efficiency of the DSSCs by as much as 17% compared to that of bare ITO-based DSSCs. The electrical properties and J - V characteristics of the multilayered NTO/ITO films showed that the improved cell performance was due to the facilitated charge injection from TiO 2 to ITO that resulted from the formation of an ohmic contact with ITO, as well as the conserved high conductivity of ITO after the oxidizing annealing process. Moreover, the NTO/ITO-based DSSC exhibited higher efficiency than a F-doped SnO 2(FTO)-based one, which demonstrates that optimization of multilayered NTO-based TCOs is a realistic approach for achieving highly efficient photoenergy conversion devices.

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DO - 10.1021/jp808279j

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AN - SCOPUS:61649104800

SN - 1932-7447

VL - 113

SP - 1083

EP - 1087

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 3

ER -

Functional multilayered transparent conducting oxide thin films for photovoltaic devices

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