Fabrication of high efficiency dye-sensitized solar cells based on TiO2 nanoparticles embedded in Ti substrate

Kang Pil Kim; Sang Ju Lee; Dae Kue Hwang; Dae Hwan Kim; Young Woo Heo

doi:10.1166/jnn.2015.8395

Fabrication of high efficiency dye-sensitized solar cells based on TiO₂ nanoparticles embedded in Ti substrate

Kang Pil Kim, Sang Ju Lee, Dae Kue Hwang, Dae Hwan Kim, Young Woo Heo

Division of Energy Techonology

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

4 Scopus citations

Abstract

We have embedded a TiO₂ nanoparticle (NP) photoelectrode in a Ti substrate to improve the cell efficiency of conventional TiO₂ NP based dye-sensitized solar cells (DSSCs) using Ti substrate. Compared to the conventional standing-type (TiO₂ NPs on Ti substrate) DSSCs, the embedded-type (TiO₂ NPs embedded in Ti substrate) DSSCs have shown an approximately 35% improvement in power conversion efficiency due to the improvement of J_sc . The embedded-type DSSCs have more charge transport paths than do standing-type DSSCs due to the increase of contact area between the TiO₂ NP sidewall and the Ti substrate. This increased contact area decreases the electrical resistance and increases the charge collection efficiency, which leads to the improvement of J_sc . The embedded-type NP-DSSCs are very effective DSSC structures for enhancing the power conversion efficiency of Ti substrate based DSSCs.

Original language	English
Article number	A39
Pages (from-to)	241-243
Number of pages	3
Journal	Journal of Nanoscience and Nanotechnology
Volume	15
Issue number	1
DOIs	https://doi.org/10.1166/jnn.2015.8395
State	Published - 1 Jan 2015

Bibliographical note

Publisher Copyright:
Copyright © 2015 American Scientific Publishers

Keywords

Dye-Sensitized solar cells
Embedded structure
Ti substrate
TiO nanoparticles

Access to Document

10.1166/jnn.2015.8395

Cite this

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title = "Fabrication of high efficiency dye-sensitized solar cells based on TiO2 nanoparticles embedded in Ti substrate",

abstract = "We have embedded a TiO2 nanoparticle (NP) photoelectrode in a Ti substrate to improve the cell efficiency of conventional TiO2 NP based dye-sensitized solar cells (DSSCs) using Ti substrate. Compared to the conventional standing-type (TiO2 NPs on Ti substrate) DSSCs, the embedded-type (TiO2 NPs embedded in Ti substrate) DSSCs have shown an approximately 35% improvement in power conversion efficiency due to the improvement of Jsc . The embedded-type DSSCs have more charge transport paths than do standing-type DSSCs due to the increase of contact area between the TiO2 NP sidewall and the Ti substrate. This increased contact area decreases the electrical resistance and increases the charge collection efficiency, which leads to the improvement of Jsc . The embedded-type NP-DSSCs are very effective DSSC structures for enhancing the power conversion efficiency of Ti substrate based DSSCs.",

keywords = "Dye-Sensitized solar cells, Embedded structure, Ti substrate, TiO nanoparticles",

author = "Kim, {Kang Pil} and Lee, {Sang Ju} and Hwang, {Dae Kue} and Kim, {Dae Hwan} and Heo, {Young Woo}",

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T1 - Fabrication of high efficiency dye-sensitized solar cells based on TiO2 nanoparticles embedded in Ti substrate

AU - Kim, Kang Pil

AU - Lee, Sang Ju

AU - Hwang, Dae Kue

AU - Kim, Dae Hwan

AU - Heo, Young Woo

PY - 2015/1/1

Y1 - 2015/1/1

N2 - We have embedded a TiO2 nanoparticle (NP) photoelectrode in a Ti substrate to improve the cell efficiency of conventional TiO2 NP based dye-sensitized solar cells (DSSCs) using Ti substrate. Compared to the conventional standing-type (TiO2 NPs on Ti substrate) DSSCs, the embedded-type (TiO2 NPs embedded in Ti substrate) DSSCs have shown an approximately 35% improvement in power conversion efficiency due to the improvement of Jsc . The embedded-type DSSCs have more charge transport paths than do standing-type DSSCs due to the increase of contact area between the TiO2 NP sidewall and the Ti substrate. This increased contact area decreases the electrical resistance and increases the charge collection efficiency, which leads to the improvement of Jsc . The embedded-type NP-DSSCs are very effective DSSC structures for enhancing the power conversion efficiency of Ti substrate based DSSCs.

AB - We have embedded a TiO2 nanoparticle (NP) photoelectrode in a Ti substrate to improve the cell efficiency of conventional TiO2 NP based dye-sensitized solar cells (DSSCs) using Ti substrate. Compared to the conventional standing-type (TiO2 NPs on Ti substrate) DSSCs, the embedded-type (TiO2 NPs embedded in Ti substrate) DSSCs have shown an approximately 35% improvement in power conversion efficiency due to the improvement of Jsc . The embedded-type DSSCs have more charge transport paths than do standing-type DSSCs due to the increase of contact area between the TiO2 NP sidewall and the Ti substrate. This increased contact area decreases the electrical resistance and increases the charge collection efficiency, which leads to the improvement of Jsc . The embedded-type NP-DSSCs are very effective DSSC structures for enhancing the power conversion efficiency of Ti substrate based DSSCs.

KW - Dye-Sensitized solar cells

KW - Embedded structure

KW - Ti substrate

KW - TiO nanoparticles

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