Enhanced efficiency of over 10% in dye-sensitized solar cells through C and N single- and co-doped TiO2single-layer electrodes

H. Asgari Moghaddam, S. Jafari, M. R. Mohammadi (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

Herein, we report the impact of single- and co-doping of nanoparticle TiO 2 films with carbon and nitrogen on the photovoltaic characteristics of their corresponding dye-sensitized solar cell (DSC) devices. Different DSCs with various compositions of the photoanode electrodes are fabricated to study their structural and electronic properties by X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), field-emission scanning electron microscopy (FE-SEM), Brunauer-Emmett-Teller (BET) analysis and X-ray photoelectron spectroscopy (XPS). We find that the interstitial nitrogen atoms for single N doping have a greater impact on the band gap energy (E g) than the substitutional (to Ti) carbon atoms for single C doping. The short circuit current and efficiency of DSCs are enhanced by C and N single- and co-doping with dominant impression of carbon doping. Furthermore, the electrochemical impedance spectroscopy (EIS) measurements reveal that the electron lifetime, charge transport and recombination resistance of DSCs are improved by C and N single- and co-doping with prominent impact of carbon doping. Therefore, we achieve the highest cell efficiency of 10.2% as a result of a balance between the band gap, surface area, and diffused reflection of the photoanode electrode.

Original languageEnglish
Pages (from-to)9453-9460
JournalNew Journal of Chemistry
Volume41
Issue number17
DOIs
Publication statusPublished - 1 Jan 2017
MoE publication typeNot Eligible

Fingerprint

Doping (additives)
Electrodes
Carbon
Energy gap
Nitrogen
Atoms
Dye-sensitized solar cells
Electrochemical impedance spectroscopy
Electronic properties
Short circuit currents
Field emission
Charge transfer
Structural properties
X ray photoelectron spectroscopy
Spectroscopy
Nanoparticles
X ray diffraction
Scanning electron microscopy
Electrons
Chemical analysis

Cite this

Asgari Moghaddam, H. ; Jafari, S. ; Mohammadi, M. R. / Enhanced efficiency of over 10% in dye-sensitized solar cells through C and N single- and co-doped TiO2single-layer electrodes. In: New Journal of Chemistry. 2017 ; Vol. 41, No. 17. pp. 9453-9460.
@article{ebe77e3d3f9b4df9a125783d02f2346b,
title = "Enhanced efficiency of over 10{\%} in dye-sensitized solar cells through C and N single- and co-doped TiO2single-layer electrodes",
abstract = "Herein, we report the impact of single- and co-doping of nanoparticle TiO 2 films with carbon and nitrogen on the photovoltaic characteristics of their corresponding dye-sensitized solar cell (DSC) devices. Different DSCs with various compositions of the photoanode electrodes are fabricated to study their structural and electronic properties by X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), field-emission scanning electron microscopy (FE-SEM), Brunauer-Emmett-Teller (BET) analysis and X-ray photoelectron spectroscopy (XPS). We find that the interstitial nitrogen atoms for single N doping have a greater impact on the band gap energy (E g) than the substitutional (to Ti) carbon atoms for single C doping. The short circuit current and efficiency of DSCs are enhanced by C and N single- and co-doping with dominant impression of carbon doping. Furthermore, the electrochemical impedance spectroscopy (EIS) measurements reveal that the electron lifetime, charge transport and recombination resistance of DSCs are improved by C and N single- and co-doping with prominent impact of carbon doping. Therefore, we achieve the highest cell efficiency of 10.2{\%} as a result of a balance between the band gap, surface area, and diffused reflection of the photoanode electrode.",
author = "{Asgari Moghaddam}, H. and S. Jafari and Mohammadi, {M. R.}",
year = "2017",
month = "1",
day = "1",
doi = "10.1039/c7nj01535f",
language = "English",
volume = "41",
pages = "9453--9460",
journal = "New Journal of Chemistry",
issn = "1144-0546",
publisher = "Royal Society of Chemistry RSC",
number = "17",

}

Enhanced efficiency of over 10% in dye-sensitized solar cells through C and N single- and co-doped TiO2single-layer electrodes. / Asgari Moghaddam, H.; Jafari, S.; Mohammadi, M. R. (Corresponding Author).

In: New Journal of Chemistry, Vol. 41, No. 17, 01.01.2017, p. 9453-9460.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Enhanced efficiency of over 10% in dye-sensitized solar cells through C and N single- and co-doped TiO2single-layer electrodes

AU - Asgari Moghaddam, H.

AU - Jafari, S.

AU - Mohammadi, M. R.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Herein, we report the impact of single- and co-doping of nanoparticle TiO 2 films with carbon and nitrogen on the photovoltaic characteristics of their corresponding dye-sensitized solar cell (DSC) devices. Different DSCs with various compositions of the photoanode electrodes are fabricated to study their structural and electronic properties by X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), field-emission scanning electron microscopy (FE-SEM), Brunauer-Emmett-Teller (BET) analysis and X-ray photoelectron spectroscopy (XPS). We find that the interstitial nitrogen atoms for single N doping have a greater impact on the band gap energy (E g) than the substitutional (to Ti) carbon atoms for single C doping. The short circuit current and efficiency of DSCs are enhanced by C and N single- and co-doping with dominant impression of carbon doping. Furthermore, the electrochemical impedance spectroscopy (EIS) measurements reveal that the electron lifetime, charge transport and recombination resistance of DSCs are improved by C and N single- and co-doping with prominent impact of carbon doping. Therefore, we achieve the highest cell efficiency of 10.2% as a result of a balance between the band gap, surface area, and diffused reflection of the photoanode electrode.

AB - Herein, we report the impact of single- and co-doping of nanoparticle TiO 2 films with carbon and nitrogen on the photovoltaic characteristics of their corresponding dye-sensitized solar cell (DSC) devices. Different DSCs with various compositions of the photoanode electrodes are fabricated to study their structural and electronic properties by X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), field-emission scanning electron microscopy (FE-SEM), Brunauer-Emmett-Teller (BET) analysis and X-ray photoelectron spectroscopy (XPS). We find that the interstitial nitrogen atoms for single N doping have a greater impact on the band gap energy (E g) than the substitutional (to Ti) carbon atoms for single C doping. The short circuit current and efficiency of DSCs are enhanced by C and N single- and co-doping with dominant impression of carbon doping. Furthermore, the electrochemical impedance spectroscopy (EIS) measurements reveal that the electron lifetime, charge transport and recombination resistance of DSCs are improved by C and N single- and co-doping with prominent impact of carbon doping. Therefore, we achieve the highest cell efficiency of 10.2% as a result of a balance between the band gap, surface area, and diffused reflection of the photoanode electrode.

UR - http://www.scopus.com/inward/record.url?scp=85028025873&partnerID=8YFLogxK

U2 - 10.1039/c7nj01535f

DO - 10.1039/c7nj01535f

M3 - Article

VL - 41

SP - 9453

EP - 9460

JO - New Journal of Chemistry

JF - New Journal of Chemistry

SN - 1144-0546

IS - 17

ER -