Chemically tuned, bi-functional polar interlayer for TiO2 photoanodes in fibre-shaped dye-sensitized solar cells

Ryanda Enggar Anugrah Ardhi; Minh Xuan Tran; Manxiang Wang; Guicheng Liu; Joong Kee Lee

doi:10.1039/c9ta12118h

Chemically tuned, bi-functional polar interlayer for TiO₂ photoanodes in fibre-shaped dye-sensitized solar cells

Ryanda Enggar Anugrah Ardhi, Minh Xuan Tran, Manxiang Wang, Guicheng Liu^*, Joong Kee Lee

^*Corresponding author for this work

KAUST Solar Center

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

15 Scopus citations

Abstract

A novel strategy to improve the performance of fibre-shaped dye-sensitized solar cells (FDSSCs) has been successfully implemented using a polar polymer interlayer made of poly(2-ethyl-2-oxazoline) (PEOx). The inclusion of the PEOx interlayer reduces the typical defect sites and interband trap sites that exist on the TiO₂-nanotube-based photoanode of the FDSSC. A local built-in electric field, induced by the interfacial intrinsic polarity of the PEOx interlayer, promotes facile photogenerated charge injection/extraction kinetics at the TiO₂/dye interface. The negative polarity present on the bottom part of the PEOx chain exhibits an electronic doping-like behaviour, passivating the TiO₂ defect sites and reducing trap-assisted recombination, while the positive polarity present on the top part of the PEOx chain provides dye-rich anchoring sites to improve the N719 dye adsorption loading on the TiO₂ surface. The charge collection efficiency, short-circuit current density, open-circuit voltage, and fill factor of FDSSCs with the novel TiO₂@PEOx photoanodes are superior than those of FDSSCs with traditional TiO₂ photoanodes, by approximately 16.94%, 8.57%, 14.08%, and 6.58%, respectively. Consequently, the power conversion efficiency (PCE) of the proposed FDSSC is considerably improved, reaching 11.22%. Thus, the PCE of the proposed FDSSC is improved by approximately 32.16% compared with that of the traditional FDSSC.

Original language	English (US)
Pages (from-to)	2549-2562
Number of pages	14
Journal	JOURNAL OF MATERIALS CHEMISTRY A
Volume	8
Issue number	5
DOIs	https://doi.org/10.1039/c9ta12118h
State	Published - 2020

Bibliographical note

Funding Information:
This work was supported by research grant (NRF-2019R1A2B5B03001772) and Brain Pool program (NRF-2019H1D3A2A02100593) funded by the National Research Foundation under the Ministry of Science and ICT, Republic of Korea. This work is also supported by the Korea Institutional Program (2E29592). The authors thank Mr Joo Man Woo for technical discussions during the preparation for this study. The authors would also like to thank Mr Byung Su Kim (Hanyang University), Ms. Ji-Yeong Kim (KIST), and Mr Evandi Rahman (KIST) for IMPS/IMVS, EQE, and UV-vis measurements, respectively.

Publisher Copyright:
© 2020 The Royal Society of Chemistry.

ASJC Scopus subject areas

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

UN SDGs

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

Access to Document

10.1039/c9ta12118h

Cite this

@article{fec1c7f1aa7a4557bfdb8c22a3e793bf,

title = "Chemically tuned, bi-functional polar interlayer for TiO2 photoanodes in fibre-shaped dye-sensitized solar cells",

abstract = "A novel strategy to improve the performance of fibre-shaped dye-sensitized solar cells (FDSSCs) has been successfully implemented using a polar polymer interlayer made of poly(2-ethyl-2-oxazoline) (PEOx). The inclusion of the PEOx interlayer reduces the typical defect sites and interband trap sites that exist on the TiO2-nanotube-based photoanode of the FDSSC. A local built-in electric field, induced by the interfacial intrinsic polarity of the PEOx interlayer, promotes facile photogenerated charge injection/extraction kinetics at the TiO2/dye interface. The negative polarity present on the bottom part of the PEOx chain exhibits an electronic doping-like behaviour, passivating the TiO2 defect sites and reducing trap-assisted recombination, while the positive polarity present on the top part of the PEOx chain provides dye-rich anchoring sites to improve the N719 dye adsorption loading on the TiO2 surface. The charge collection efficiency, short-circuit current density, open-circuit voltage, and fill factor of FDSSCs with the novel TiO2@PEOx photoanodes are superior than those of FDSSCs with traditional TiO2 photoanodes, by approximately 16.94%, 8.57%, 14.08%, and 6.58%, respectively. Consequently, the power conversion efficiency (PCE) of the proposed FDSSC is considerably improved, reaching 11.22%. Thus, the PCE of the proposed FDSSC is improved by approximately 32.16% compared with that of the traditional FDSSC.",

author = "Ardhi, {Ryanda Enggar Anugrah} and Tran, {Minh Xuan} and Manxiang Wang and Guicheng Liu and Lee, {Joong Kee}",

note = "Funding Information: This work was supported by research grant (NRF-2019R1A2B5B03001772) and Brain Pool program (NRF-2019H1D3A2A02100593) funded by the National Research Foundation under the Ministry of Science and ICT, Republic of Korea. This work is also supported by the Korea Institutional Program (2E29592). The authors thank Mr Joo Man Woo for technical discussions during the preparation for this study. The authors would also like to thank Mr Byung Su Kim (Hanyang University), Ms. Ji-Yeong Kim (KIST), and Mr Evandi Rahman (KIST) for IMPS/IMVS, EQE, and UV-vis measurements, respectively. Publisher Copyright: {\textcopyright} 2020 The Royal Society of Chemistry.",

year = "2020",

doi = "10.1039/c9ta12118h",

language = "English (US)",

volume = "8",

pages = "2549--2562",

journal = "JOURNAL OF MATERIALS CHEMISTRY A",

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publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Chemically tuned, bi-functional polar interlayer for TiO2 photoanodes in fibre-shaped dye-sensitized solar cells

AU - Ardhi, Ryanda Enggar Anugrah

AU - Tran, Minh Xuan

AU - Wang, Manxiang

AU - Liu, Guicheng

AU - Lee, Joong Kee

N1 - Funding Information: This work was supported by research grant (NRF-2019R1A2B5B03001772) and Brain Pool program (NRF-2019H1D3A2A02100593) funded by the National Research Foundation under the Ministry of Science and ICT, Republic of Korea. This work is also supported by the Korea Institutional Program (2E29592). The authors thank Mr Joo Man Woo for technical discussions during the preparation for this study. The authors would also like to thank Mr Byung Su Kim (Hanyang University), Ms. Ji-Yeong Kim (KIST), and Mr Evandi Rahman (KIST) for IMPS/IMVS, EQE, and UV-vis measurements, respectively. Publisher Copyright: © 2020 The Royal Society of Chemistry.

PY - 2020

Y1 - 2020

N2 - A novel strategy to improve the performance of fibre-shaped dye-sensitized solar cells (FDSSCs) has been successfully implemented using a polar polymer interlayer made of poly(2-ethyl-2-oxazoline) (PEOx). The inclusion of the PEOx interlayer reduces the typical defect sites and interband trap sites that exist on the TiO2-nanotube-based photoanode of the FDSSC. A local built-in electric field, induced by the interfacial intrinsic polarity of the PEOx interlayer, promotes facile photogenerated charge injection/extraction kinetics at the TiO2/dye interface. The negative polarity present on the bottom part of the PEOx chain exhibits an electronic doping-like behaviour, passivating the TiO2 defect sites and reducing trap-assisted recombination, while the positive polarity present on the top part of the PEOx chain provides dye-rich anchoring sites to improve the N719 dye adsorption loading on the TiO2 surface. The charge collection efficiency, short-circuit current density, open-circuit voltage, and fill factor of FDSSCs with the novel TiO2@PEOx photoanodes are superior than those of FDSSCs with traditional TiO2 photoanodes, by approximately 16.94%, 8.57%, 14.08%, and 6.58%, respectively. Consequently, the power conversion efficiency (PCE) of the proposed FDSSC is considerably improved, reaching 11.22%. Thus, the PCE of the proposed FDSSC is improved by approximately 32.16% compared with that of the traditional FDSSC.

AB - A novel strategy to improve the performance of fibre-shaped dye-sensitized solar cells (FDSSCs) has been successfully implemented using a polar polymer interlayer made of poly(2-ethyl-2-oxazoline) (PEOx). The inclusion of the PEOx interlayer reduces the typical defect sites and interband trap sites that exist on the TiO2-nanotube-based photoanode of the FDSSC. A local built-in electric field, induced by the interfacial intrinsic polarity of the PEOx interlayer, promotes facile photogenerated charge injection/extraction kinetics at the TiO2/dye interface. The negative polarity present on the bottom part of the PEOx chain exhibits an electronic doping-like behaviour, passivating the TiO2 defect sites and reducing trap-assisted recombination, while the positive polarity present on the top part of the PEOx chain provides dye-rich anchoring sites to improve the N719 dye adsorption loading on the TiO2 surface. The charge collection efficiency, short-circuit current density, open-circuit voltage, and fill factor of FDSSCs with the novel TiO2@PEOx photoanodes are superior than those of FDSSCs with traditional TiO2 photoanodes, by approximately 16.94%, 8.57%, 14.08%, and 6.58%, respectively. Consequently, the power conversion efficiency (PCE) of the proposed FDSSC is considerably improved, reaching 11.22%. Thus, the PCE of the proposed FDSSC is improved by approximately 32.16% compared with that of the traditional FDSSC.

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