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 | |
| Publication status | Published - 2014 Jun 7 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Materials Science(all)
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3-D TiO2 nanoparticle/ITO nanowire nanocomposite antenna for efficient charge collection in solid state dye-sensitized solar cells. / Han, Gill Sang; Lee, Sangwook; Noh, Jun Hong; Chung, Hyun Suk; Park, Jong Hoon; Swain, Bhabani Sankar; Im, Jeong Hyeok; Park, Nam Gyu; Jung, Hyun Suk.
In: Nanoscale, Vol. 6, No. 11, 07.06.2014, p. 6127-6132.Research output: Contribution to journal › Article
}
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 - http://www.scopus.com/inward/record.url?scp=84901019815&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84901019815&partnerID=8YFLogxK
U2 - 10.1039/c4nr00621f
DO - 10.1039/c4nr00621f
M3 - Article
AN - SCOPUS:84901019815
VL - 6
SP - 6127
EP - 6132
JO - Nanoscale
JF - Nanoscale
SN - 2040-3364
IS - 11
ER -