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

Research output: Contribution to journal › Journal article › Research › peer-review

59 Citations (Scopus)

Abstract

Our research aimed to improve the overall energy conversion efficiency of DSCs by applying nitrogen-doped TiO ₂ nano-tubes (N-TNT) for the preparation of DSCs photo-anodes. The none-doped TiO ₂ nano-tubes (TNTs) were synthesized by alkaline hydrothermal treatment of Degussa P25 TiO ₂ particles in 10 M NaOH. The nano-tubes were N-doped by reflux in various concentrations of NH ₄ NO ₃ . 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.

Original language	English
Journal	Applied Surface Science
Volume	399
Pages (from-to)	515-522
Number of pages	8
ISSN	0169-4332
DOIs	https://doi.org/10.1016/j.apsusc.2016.12.125
Publication status	Published - 31 Mar 2017

Keywords

Dark current
Dye-sensitized solar cell
N-doped TiO
TiO nano-tubes
TiO surface modification

Access to Document

10.1016/j.apsusc.2016.12.125

Citation Styles

@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 TiO 2 nano-tubes (N-TNT) for the preparation of DSCs photo-anodes. The none-doped TiO 2 nano-tubes (TNTs) were synthesized by alkaline hydrothermal treatment of Degussa P25 TiO 2 particles in 10 M NaOH. The nano-tubes were N-doped by reflux in various concentrations of NH 4 NO 3 . 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",

month = mar,

day = "31",

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 - 2017/3/31

Y1 - 2017/3/31

N2 - Our research aimed to improve the overall energy conversion efficiency of DSCs by applying nitrogen-doped TiO 2 nano-tubes (N-TNT) for the preparation of DSCs photo-anodes. The none-doped TiO 2 nano-tubes (TNTs) were synthesized by alkaline hydrothermal treatment of Degussa P25 TiO 2 particles in 10 M NaOH. The nano-tubes were N-doped by reflux in various concentrations of NH 4 NO 3 . 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 TiO 2 nano-tubes (N-TNT) for the preparation of DSCs photo-anodes. The none-doped TiO 2 nano-tubes (TNTs) were synthesized by alkaline hydrothermal treatment of Degussa P25 TiO 2 particles in 10 M NaOH. The nano-tubes were N-doped by reflux in various concentrations of NH 4 NO 3 . 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 -