In2O3:Sn/TiO2/CdS heterojunction nanowire array photoanode in photoelectrochemical cells

Ju Seong Kim; Hyun Soo Han; Sun Shin; Gill Sang Han; Hyun Suk Jung; Kug Sun Hong; Jun Hong Noh

doi:10.1016/j.ijhydene.2013.12.087

In₂O₃:Sn/TiO₂/CdS heterojunction nanowire array photoanode in photoelectrochemical cells

Ju Seong Kim, Hyun Soo Han, Sun Shin, Gill Sang Han, Hyun Suk Jung, Kug Sun Hong, Jun Hong Noh

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

23 Citations (Scopus)

Abstract

The design of photoanode with highly efficient light harvesting and charge collection properties is important in photoelectrochemical (PEC) cell performance for hydrogen production. Here, we report the hierarchical In₂O₃:Sn/TiO₂/CdS heterojunction nanowire array photoanode (ITO/TiO₂/CdS-nanowire array photoanode) as it provides a short travel distance for charge carrier and long light absorption pathway by scattering effect. In addition, optical properties and device performance of the ITO/TiO₂/CdS-nanowire array photoanode were compared with the TiO₂ nanoparticle/CdS photoanode. The photocatalytic properties for water splitting were measured in the presence of sacrificial agent such as SO₃^2- and S^2- ions. Under illumination (AM 1.5G, 100 mW/cm²), ITO/TiO₂/CdS-nanowire array photoanode exhibits a photocurrent density of 8.36 mA/cm² at 0 V versus Ag/AgCl, which is four times higher than the TiO₂ nanoparticle/CdS photoanode. The maximum applied bias photon-to-current efficiency for the ITO/TiO₂/CdS-nanowire array and the TiO₂ nanoparticle/CdS photoanode were 3.33% and 2.09%, respectively. The improved light harvesting and the charge collection properties due to the increased light absorption pathway and reduced electron travel distance by ITO nanowire lead to enhancement of PEC performance.

Original language	English
Pages (from-to)	17473-17480
Number of pages	8
Journal	International Journal of Hydrogen Energy
Volume	39
Issue number	30
DOIs	https://doi.org/10.1016/j.ijhydene.2013.12.087
Publication status	Published - 2014 Oct 13
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2013 Hydrogen Energy Publications, LLC.

Keywords

CdS
Charge collection
ITO nanowire (InO:Sn)
Light harvesting
Nanowire
Photoelectrochemical cell

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.ijhydene.2013.12.087

Cite this

@article{bc42f320515647da8f0f5512b97214cc,

title = "In2O3:Sn/TiO2/CdS heterojunction nanowire array photoanode in photoelectrochemical cells",

abstract = "The design of photoanode with highly efficient light harvesting and charge collection properties is important in photoelectrochemical (PEC) cell performance for hydrogen production. Here, we report the hierarchical In2O3:Sn/TiO2/CdS heterojunction nanowire array photoanode (ITO/TiO2/CdS-nanowire array photoanode) as it provides a short travel distance for charge carrier and long light absorption pathway by scattering effect. In addition, optical properties and device performance of the ITO/TiO2/CdS-nanowire array photoanode were compared with the TiO2 nanoparticle/CdS photoanode. The photocatalytic properties for water splitting were measured in the presence of sacrificial agent such as SO32- and S2- ions. Under illumination (AM 1.5G, 100 mW/cm2), ITO/TiO2/CdS-nanowire array photoanode exhibits a photocurrent density of 8.36 mA/cm2 at 0 V versus Ag/AgCl, which is four times higher than the TiO2 nanoparticle/CdS photoanode. The maximum applied bias photon-to-current efficiency for the ITO/TiO2/CdS-nanowire array and the TiO2 nanoparticle/CdS photoanode were 3.33% and 2.09%, respectively. The improved light harvesting and the charge collection properties due to the increased light absorption pathway and reduced electron travel distance by ITO nanowire lead to enhancement of PEC performance.",

keywords = "CdS, Charge collection, ITO nanowire (InO:Sn), Light harvesting, Nanowire, Photoelectrochemical cell",

author = "Kim, {Ju Seong} and Han, {Hyun Soo} and Sun Shin and Han, {Gill Sang} and Jung, {Hyun Suk} and Hong, {Kug Sun} and Noh, {Jun Hong}",

note = "Publisher Copyright: {\textcopyright} 2013 Hydrogen Energy Publications, LLC.",

year = "2014",

month = oct,

day = "13",

doi = "10.1016/j.ijhydene.2013.12.087",

language = "English",

volume = "39",

pages = "17473--17480",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Ltd",

number = "30",

}

TY - JOUR

T1 - In2O3:Sn/TiO2/CdS heterojunction nanowire array photoanode in photoelectrochemical cells

AU - Kim, Ju Seong

AU - Han, Hyun Soo

AU - Shin, Sun

AU - Han, Gill Sang

AU - Jung, Hyun Suk

AU - Hong, Kug Sun

AU - Noh, Jun Hong

PY - 2014/10/13

Y1 - 2014/10/13

N2 - The design of photoanode with highly efficient light harvesting and charge collection properties is important in photoelectrochemical (PEC) cell performance for hydrogen production. Here, we report the hierarchical In2O3:Sn/TiO2/CdS heterojunction nanowire array photoanode (ITO/TiO2/CdS-nanowire array photoanode) as it provides a short travel distance for charge carrier and long light absorption pathway by scattering effect. In addition, optical properties and device performance of the ITO/TiO2/CdS-nanowire array photoanode were compared with the TiO2 nanoparticle/CdS photoanode. The photocatalytic properties for water splitting were measured in the presence of sacrificial agent such as SO32- and S2- ions. Under illumination (AM 1.5G, 100 mW/cm2), ITO/TiO2/CdS-nanowire array photoanode exhibits a photocurrent density of 8.36 mA/cm2 at 0 V versus Ag/AgCl, which is four times higher than the TiO2 nanoparticle/CdS photoanode. The maximum applied bias photon-to-current efficiency for the ITO/TiO2/CdS-nanowire array and the TiO2 nanoparticle/CdS photoanode were 3.33% and 2.09%, respectively. The improved light harvesting and the charge collection properties due to the increased light absorption pathway and reduced electron travel distance by ITO nanowire lead to enhancement of PEC performance.

AB - The design of photoanode with highly efficient light harvesting and charge collection properties is important in photoelectrochemical (PEC) cell performance for hydrogen production. Here, we report the hierarchical In2O3:Sn/TiO2/CdS heterojunction nanowire array photoanode (ITO/TiO2/CdS-nanowire array photoanode) as it provides a short travel distance for charge carrier and long light absorption pathway by scattering effect. In addition, optical properties and device performance of the ITO/TiO2/CdS-nanowire array photoanode were compared with the TiO2 nanoparticle/CdS photoanode. The photocatalytic properties for water splitting were measured in the presence of sacrificial agent such as SO32- and S2- ions. Under illumination (AM 1.5G, 100 mW/cm2), ITO/TiO2/CdS-nanowire array photoanode exhibits a photocurrent density of 8.36 mA/cm2 at 0 V versus Ag/AgCl, which is four times higher than the TiO2 nanoparticle/CdS photoanode. The maximum applied bias photon-to-current efficiency for the ITO/TiO2/CdS-nanowire array and the TiO2 nanoparticle/CdS photoanode were 3.33% and 2.09%, respectively. The improved light harvesting and the charge collection properties due to the increased light absorption pathway and reduced electron travel distance by ITO nanowire lead to enhancement of PEC performance.

KW - CdS

KW - Charge collection

KW - ITO nanowire (InO:Sn)

KW - Light harvesting

KW - Nanowire

KW - Photoelectrochemical cell

UR - http://www.scopus.com/inward/record.url?scp=84920489399&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2013.12.087

DO - 10.1016/j.ijhydene.2013.12.087

M3 - Article

AN - SCOPUS:84920489399

SN - 0360-3199

VL - 39

SP - 17473

EP - 17480

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 30

ER -