Application of nitrogen-doped TiO2 nano-tubes in dye-sensitized solar cells

Vy Anh Tran; Trieu  Thinh Troung; Thu Anh Pham Phan; Trang Ngoc Nguyen; Tuan Van  Huynh; Antonia Agresti; Sara Pescetelli; Tien  Khoa Le; Aldo  Di Carlo; Torben Lund; So-Nhu Le; Phuong Tuyet Nguyen

doi:10.1016/j.apsusc.2016.12.125

Application of nitrogen-doped TiO2 nano-tubes in dye-sensitized solar cells

Vy Anh Tran, Trieu Thinh Troung, Thu Anh Pham Phan, Trang Ngoc Nguyen, Tuan Van Huynh, Antonia Agresti, Sara Pescetelli, Tien Khoa Le, Aldo Di Carlo, Torben Lund, So-Nhu Le, Phuong Tuyet Nguyen

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

Abstract

Our research aimed to improve the overall energy conversion efficiency of DSCs by applying nitrogendoped
TiO2 nano-tubes (N-TNT) for the preparation of DSCs photo-anodes. The none-doped TiO2
nano-tubes (TNTs) were synthesized by alkaline hydrothermal treatment of Degussa P25 TiO2 particles
in 10 M NaOH. The nano-tubes were N-doped by reflux in various concentrations of NH4NO3. The
effects of nitrogen doping on the structure, morphology, and crystallography of N-TNT were analyzed
by transmission electron microscopy (TEM), infrared spectroscopy (IR), Raman spectroscopy, and X-ray
photoelectron spectra (XPS). DSCs fabricated with doped N-TNT and TNT was characterized by J-V measurements.
Results showed that nitrogen doping significantly enhanced the efficiency of N-TNT cells,
reaching the optimum value ( = 7.36%) with 2 M nitrogen dopant, compared to = 4.75% of TNT cells.
The high efficiency of the N-TNT cells was attributed to increased current density due to the reduction of
dark current in the DSCs.

Originalsprog	Engelsk
Tidsskrift	Applied Surface Science
Vol/bind	399
Sider (fra-til)	515-522
Antal sider	8
ISSN	0169-4332
DOI	https://doi.org/10.1016/j.apsusc.2016.12.125
Status	Udgivet - 2017

Link til dokument

10.1016/j.apsusc.2016.12.125

Citer dette

@article{d16d45e37c31444ab52e811397fb57f0,

title = "Application of nitrogen-doped TiO2 nano-tubes in dye-sensitized solar cells",

abstract = "Our research aimed to improve the overall energy conversion efficiency of DSCs by applying nitrogen-doped TiO2 nano-tubes (N-TNT) for the preparation of DSCs photo-anodes. The none-doped TiO2 nano-tubes (TNTs) were synthesized by alkaline hydrothermal treatment of Degussa P25 TiO2 particles in 10 M NaOH. The nano-tubes were N-doped by reflux in various concentrations of NH4NO3. The effects of nitrogen doping on the structure, morphology, and crystallography of N-TNT were analyzed by transmission electron microscopy (TEM), infrared spectroscopy (IR), Raman spectroscopy, and X-ray photoelectron spectra (XPS). DSCs fabricated with doped N-TNT and TNT was characterized by J-V measurements. Results showed that nitrogen doping significantly enhanced the efficiency of N-TNT cells, reaching the optimum value (η = 7.36%) with 2 M nitrogen dopant, compared to η = 4.75% of TNT cells. The high efficiency of the N-TNT cells was attributed to increased current density due to the reduction of dark current in the DSCs.",

keywords = "Dark current, Dye-sensitized solar cell, N-doped TiO, TiO nano-tubes, TiO surface modification",

author = "Tran, {Vy Anh} and {Thinh Troung}, Trieu and {Pham Phan}, {Thu Anh} and {Ngoc Nguyen}, Trang and Huynh, {Tuan Van} and Antonia Agresti and Sara Pescetelli and {Khoa Le}, Tien and {Di Carlo}, Aldo and Torben Lund and So-Nhu Le and {Tuyet Nguyen}, Phuong",

year = "2017",

doi = "10.1016/j.apsusc.2016.12.125",

language = "English",

volume = "399",

pages = "515--522",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier BV * North-Holland",

}

TY - JOUR

T1 - Application of nitrogen-doped TiO2 nano-tubes in dye-sensitized solar cells

AU - Tran, Vy Anh

AU - Thinh Troung, Trieu

AU - Pham Phan, Thu Anh

AU - Ngoc Nguyen, Trang

AU - Huynh, Tuan Van

AU - Agresti, Antonia

AU - Pescetelli, Sara

AU - Khoa Le, Tien

AU - Di Carlo, Aldo

AU - Lund, Torben

AU - Le, So-Nhu

AU - Tuyet Nguyen, Phuong

PY - 2017

Y1 - 2017

N2 - Our research aimed to improve the overall energy conversion efficiency of DSCs by applying nitrogen-doped TiO2 nano-tubes (N-TNT) for the preparation of DSCs photo-anodes. The none-doped TiO2 nano-tubes (TNTs) were synthesized by alkaline hydrothermal treatment of Degussa P25 TiO2 particles in 10 M NaOH. The nano-tubes were N-doped by reflux in various concentrations of NH4NO3. The effects of nitrogen doping on the structure, morphology, and crystallography of N-TNT were analyzed by transmission electron microscopy (TEM), infrared spectroscopy (IR), Raman spectroscopy, and X-ray photoelectron spectra (XPS). DSCs fabricated with doped N-TNT and TNT was characterized by J-V measurements. Results showed that nitrogen doping significantly enhanced the efficiency of N-TNT cells, reaching the optimum value (η = 7.36%) with 2 M nitrogen dopant, compared to η = 4.75% of TNT cells. The high efficiency of the N-TNT cells was attributed to increased current density due to the reduction of dark current in the DSCs.

AB - Our research aimed to improve the overall energy conversion efficiency of DSCs by applying nitrogen-doped TiO2 nano-tubes (N-TNT) for the preparation of DSCs photo-anodes. The none-doped TiO2 nano-tubes (TNTs) were synthesized by alkaline hydrothermal treatment of Degussa P25 TiO2 particles in 10 M NaOH. The nano-tubes were N-doped by reflux in various concentrations of NH4NO3. The effects of nitrogen doping on the structure, morphology, and crystallography of N-TNT were analyzed by transmission electron microscopy (TEM), infrared spectroscopy (IR), Raman spectroscopy, and X-ray photoelectron spectra (XPS). DSCs fabricated with doped N-TNT and TNT was characterized by J-V measurements. Results showed that nitrogen doping significantly enhanced the efficiency of N-TNT cells, reaching the optimum value (η = 7.36%) with 2 M nitrogen dopant, compared to η = 4.75% of TNT cells. The high efficiency of the N-TNT cells was attributed to increased current density due to the reduction of dark current in the DSCs.

KW - Dark current

KW - Dye-sensitized solar cell

KW - N-doped TiO

KW - TiO nano-tubes

KW - TiO surface modification

U2 - 10.1016/j.apsusc.2016.12.125

DO - 10.1016/j.apsusc.2016.12.125

M3 - Journal article

SN - 0169-4332

VL - 399

SP - 515

EP - 522

JO - Applied Surface Science

JF - Applied Surface Science

ER -