3-D TiO2 nanoparticle/ITO nanowire nanocomposite antenna for efficient charge collection in solid state dye-sensitized solar cells

Gill Sang Han; Sangwook Lee; Jun Hong Noh; Hyun Suk Chung; Jong Hoon Park; Bhabani Sankar Swain; Jeong Hyeok Im; Nam Gyu Park; Hyun Suk Jung

doi:10.1039/c4nr00621f

3-D TiO₂ nanoparticle/ITO nanowire nanocomposite antenna for efficient charge collection in solid state dye-sensitized solar cells

Gill Sang Han
, Sangwook Lee
, Jun Hong Noh
, Hyun Suk Chung
, Jong Hoon Park
, Bhabani Sankar Swain
, Jeong Hyeok Im
, Nam Gyu Park
, Hyun Suk Jung

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

30 Scopus citations

Abstract

TiO₂ nanoparticle (NP)/ITO nanowire (NW) nanocomposites for use as photoelectrode materials were fabricated to improve the charge collection efficiency in solid state dye sensitized solar cells (ss-DSSCs). The average current density for ss-DSSCs containing TiO₂ NP/ITO NW arrays was 7.2 mA cm^-2 that was 98% higher than that for the conventional TiO ₂ NP ss-DSSCs. The intensity modulated photocurrent spectroscopy (IMPS) and intensity modulated photovoltage spectroscopy (IMVS) studies exhibited that the electron diffusion length of TiO₂ NP/ITO-NW nanocomposite ss-DSSCs was in the range of 4.3-5.6 μm, longer than that of TiO₂ NP solar cells (2.6-4.1 μm). The longer diffusion length was responsible for the boosted current densities of TiO₂ NP/ITO NW nanocomposite ss-DSSCs. We also employed the TiO₂ NP/ITO NW nanocomposite photoelectrode to inorganic-organic perovskite solar cells whose energy conversion efficiency was 7.5%.

Original language	English
Pages (from-to)	6127-6132
Number of pages	6
Journal	Nanoscale
Volume	6
Issue number	11
DOIs	https://doi.org/10.1039/c4nr00621f
State	Published - 7 Jun 2014

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10.1039/c4nr00621f

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@article{e66f9c88367443de9d1487570b8132f9,

title = "3-D TiO2 nanoparticle/ITO nanowire nanocomposite antenna for efficient charge collection in solid state dye-sensitized solar cells",

abstract = "TiO2 nanoparticle (NP)/ITO nanowire (NW) nanocomposites for use as photoelectrode materials were fabricated to improve the charge collection efficiency in solid state dye sensitized solar cells (ss-DSSCs). The average current density for ss-DSSCs containing TiO2 NP/ITO NW arrays was 7.2 mA cm-2 that was 98\% higher than that for the conventional TiO 2 NP ss-DSSCs. The intensity modulated photocurrent spectroscopy (IMPS) and intensity modulated photovoltage spectroscopy (IMVS) studies exhibited that the electron diffusion length of TiO2 NP/ITO-NW nanocomposite ss-DSSCs was in the range of 4.3-5.6 μm, longer than that of TiO2 NP solar cells (2.6-4.1 μm). The longer diffusion length was responsible for the boosted current densities of TiO2 NP/ITO NW nanocomposite ss-DSSCs. We also employed the TiO2 NP/ITO NW nanocomposite photoelectrode to inorganic-organic perovskite solar cells whose energy conversion efficiency was 7.5\%.",

author = "Han, \{Gill Sang\} and Sangwook Lee and Noh, \{Jun Hong\} and Chung, \{Hyun Suk\} and Park, \{Jong Hoon\} and Swain, \{Bhabani Sankar\} and Im, \{Jeong Hyeok\} and Park, \{Nam Gyu\} and Jung, \{Hyun Suk\}",

year = "2014",

month = jun,

day = "7",

doi = "10.1039/c4nr00621f",

language = "English",

volume = "6",

pages = "6127--6132",

journal = "Nanoscale",

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TY - JOUR

T1 - 3-D TiO2 nanoparticle/ITO nanowire nanocomposite antenna for efficient charge collection in solid state dye-sensitized solar cells

AU - Han, Gill Sang

AU - Lee, Sangwook

AU - Noh, Jun Hong

AU - Chung, Hyun Suk

AU - Park, Jong Hoon

AU - Swain, Bhabani Sankar

AU - Im, Jeong Hyeok

AU - Park, Nam Gyu

AU - Jung, Hyun Suk

PY - 2014/6/7

Y1 - 2014/6/7

N2 - TiO2 nanoparticle (NP)/ITO nanowire (NW) nanocomposites for use as photoelectrode materials were fabricated to improve the charge collection efficiency in solid state dye sensitized solar cells (ss-DSSCs). The average current density for ss-DSSCs containing TiO2 NP/ITO NW arrays was 7.2 mA cm-2 that was 98% higher than that for the conventional TiO 2 NP ss-DSSCs. The intensity modulated photocurrent spectroscopy (IMPS) and intensity modulated photovoltage spectroscopy (IMVS) studies exhibited that the electron diffusion length of TiO2 NP/ITO-NW nanocomposite ss-DSSCs was in the range of 4.3-5.6 μm, longer than that of TiO2 NP solar cells (2.6-4.1 μm). The longer diffusion length was responsible for the boosted current densities of TiO2 NP/ITO NW nanocomposite ss-DSSCs. We also employed the TiO2 NP/ITO NW nanocomposite photoelectrode to inorganic-organic perovskite solar cells whose energy conversion efficiency was 7.5%.

AB - TiO2 nanoparticle (NP)/ITO nanowire (NW) nanocomposites for use as photoelectrode materials were fabricated to improve the charge collection efficiency in solid state dye sensitized solar cells (ss-DSSCs). The average current density for ss-DSSCs containing TiO2 NP/ITO NW arrays was 7.2 mA cm-2 that was 98% higher than that for the conventional TiO 2 NP ss-DSSCs. The intensity modulated photocurrent spectroscopy (IMPS) and intensity modulated photovoltage spectroscopy (IMVS) studies exhibited that the electron diffusion length of TiO2 NP/ITO-NW nanocomposite ss-DSSCs was in the range of 4.3-5.6 μm, longer than that of TiO2 NP solar cells (2.6-4.1 μm). The longer diffusion length was responsible for the boosted current densities of TiO2 NP/ITO NW nanocomposite ss-DSSCs. We also employed the TiO2 NP/ITO NW nanocomposite photoelectrode to inorganic-organic perovskite solar cells whose energy conversion efficiency was 7.5%.

UR - https://www.scopus.com/pages/publications/84901019815

U2 - 10.1039/c4nr00621f

DO - 10.1039/c4nr00621f

M3 - Article

AN - SCOPUS:84901019815

SN - 2040-3364

VL - 6

SP - 6127

EP - 6132

JO - Nanoscale

JF - Nanoscale

IS - 11

ER -

3-D TiO₂ nanoparticle/ITO nanowire nanocomposite antenna for efficient charge collection in solid state dye-sensitized solar cells

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